Section 6 - BTCl

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Section 6
-

Employer’s Requirements

6
-
1

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

Section 6
-

Employer’s Requirements


Table of Contents

1.

SCOPE OF SUPPLY OF P
LANT AND SERVICES

................................
..............

3

1.1

Brief Description of the Scope

................................
................................
................................
.......................

3

1.2

Major Contract Components

................................
................................
................................
..........................

4

1.3

List of Goods and Rel ated Services

................................
................................
................................
............

5

1.3.1

List of Equipment/Goods

................................
................................
................................
................................
.

5

1.3.2

List of Rel ated services

................................
................................
................................
................................
....

6

1.4

Deli very and Compl etion Schedul e
................................
................................
................................
............
12

2.

SPECIFICATION

................................
................................
................................
.......

14

A.

CHAPTER 2A: REQUIREMENTS OF TRANSMISSION NETWORK EQUIPMENT
................
15

B.

CHAPTER 2B: REQUIREMENTS OF IP NETWORK EQUIPMENT

................................
.............
31

C.

CHAPTER 2C: REQUIREMENTS FOR OPTIC FIBER CABLE AND OUTSIDE PLANT
(OSP) WORKS

................................
................................
................................
................................
................................
52

D.

CHAPTER 2D: REQUIREMENTS FOR POWER PLANT EQUIPMENT
................................
......
78

3.

DRAWINGS

................................
................................
................................
................

83

4.

SUPP
LEMENTARY INFORMATIO
N

................................
................................
.....

85

5.

BANK GUARANTEES AND
CERTIFICATES
................................
......................

86

5.1.

Form of Performance Security
................................
................................
................................
.....................
87

5.2.

Form of Advance Payment Security

................................
................................
................................
..........
88

5.3.

Form of Compl etion Certi ficate
................................
................................
................................
....................
89

5.4.

Form of Operational Acceptance Certi ficate
................................
................................
...........................
90

6.

CHANGE ORDERS

................................
................................
................................
...

91

6.1.

Change Order Procedure

................................
................................
................................
...........................
92

6.1.1.

General

................................
................................
................................
................................
................................
92

6
-
2

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

6.1.2.

Change Order Log

................................
................................
................................
................................
...........
92

6.1.3.

References for Changes
................................
................................
................................
................................
92

6.2.

Change Order Forms
................................
................................
................................
................................
....
93

6.2.1.

Request for C
hange Proposal Form
................................
................................
................................
..........
93

6.2.2.

Estimate for Change Proposal Form

................................
................................
................................
.........
94

6.2.3.

Acceptance of Estimate Form
................................
................................
................................
......................
95

6.2.4.

Change Proposal Form

................................
................................
................................
................................
..
96

6.2.5.

Change Order Form

................................
................................
................................
................................
........
99

6.2.6.

Pendi ng Agreement Change Order Form
................................
................................
.............................

100

6.2.7.

Application for Change Proposal Form
................................
................................
................................
..

101

7.

APPENDIX

................................
................................
................................
................
102

7.1.

APPENDIX
-
I
................................
................................
................................
..........
103

7.2.

APPENDIX
-
II
................................
................................
................................
.........
107


Section 6
-

Employer’s Requirements

6
-
3

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

1.

Scope of Supply of Plant and Services

1.1

Brief Description of the Scope


In order to fulfill th
e objectives SASEC information
Highway Project a SASEC Re
gional Network
involving four SAARC countries namely Bangladesh, India, Nepal and Bhutan has to be built. The
Scope of the present procurement is to construct the Bangladesh component of the SASEC
Regional Network by procuring necessary Goods, Equipment, M
aterials, Services and Works. The
details of the Bangladesh component of the SASEC Regional Network is given below:

The Bangladesh component of the SASEC Regional Network mainly consists of a core IP Router,
four numbers of new multi service optical trans
mission nodes and a part of the existing
transmission network of BTCL. The core router will be installed at Moghbazar, Dhaka and will
function as Gateway router for connecting other IP networks of Bangladesh and the other gateway
routers of SASEC Regional
Network to be installed at different places of India, Nepal and Bhutan.
The core router
s

will be MPLS enabled and will have both PoS (STM
-
1/STM
-
4) and Ethernet (GE
and FE) interfaces. Besides the core router, there will be an aggregation switch at Moghbaza
r.
Also, there will be a NMS, a Bandwidth Management Gateway and Operation Support System
(OSS) at Moghbazar for ease of operation and maintenance.

Core Router at Moghbazar will have the provision to connect the SASEC Community E
-
Centers
(CeCs) and S
ASEC Research & Training Network (RTN) in future. These SASEC CeCs and
SASEC RTN will be established as a part of SASEC project.

For transportation of IP traffic between Panchagarh and Dhaka and between Panchagarh and
Shiliguri, two numbers of Multi Servic
e optical transmission equipment (MSPP) will be required, one
for Panchagarh and the other for Thakurgaon. To provision an alternate path for the IP traffic
between Dhaka router and the Shiliguri Router of the SASEC Regional network two additional
MSPP wil
l be required, one of which will be installed at Chuadanga and the other at Meherpur. The
initial capacity of these transmission equipment will be STM
-
16 but can be easily upgraded to STM
-
64 capacity. From Dhaka to Dinajpur and Dhaka to Kushtia, BTCL has o
ptical transmission system
of STM
-
16 or higher capacity. The existing optical transmission link of BTCL in Dinajpur
-
Thakurgaon
-
Panchagarh and Kushtia
-
Meherpur
-
Chuadanga routes are of STM
-
1 capacity. BTCL
have enough fibers in the above mentioned route. Hen
ce, the STM
-
16 optical transmission
equipment proposed for Thakurgaon, Panchagarh, Chuadanga and Meherpur will operate over the
fibers of BTCL. For connecting the optical transmission equipment of Panchagarh to Shiliguri, India,
around 56 km OF cable will
be laid from Panchagarh BTCL station to Indian border at
Banglabandha. There is optic fiber cable connectivity between Chuadanga and Kolkata which is
operated by BTCL in Bangladesh and BSNL in India. There will be STM
-
1/STM
-
4 PoS and GE
interfaces in the R
outer to be installed at Dhaka to connect the routers at India, Nepal and Bhutan.
The transmission equipment at Thakurgaon will provide STM
-
16 connectivity for the Panchagarh
transmission equipment and to the BTCL’s existing optical transmission equipment

at Dinajpur.
Similarly, the transmission equipment at Meherpur will provide STM
-
16 connectivity for the
Chuadanga transmission equipment and to the BTCL’s existing optical transmission equipment at
Kushtia.

6
-
4

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

1.2

Major Contract Components


The Major Contract C
omponents are:

Supply, Installation, Testing and Commissioning of IP Network equipment of SASEC Regional
Network (Bangladesh component) at Moghbazar Telephone Exchange, Dhaka of BTCL.

Supply, Installation, Testing and Commissioning of Optical SDH Transmis
sion Equipment (MSPP)
at Panchagarh, Thakurgaon Chuadanga and Meherpur Telephone Exchanges of BTCL.

Sypply, Installation, Testing and Commissioning of Underground Optical Fiber Cable Network from
Panchagarh BTCL Exchange to Banglabandha zero point.

Supply,

Installation, Testing and Commissioning of DC Power equipment (Rectifier and Battery) at
Panchagarh and Meherpur Telephone Exchanges of BTCL and AC Power equipment (Inverter) at
Moghbazar, Dhaka station of BTCL.


Section 6
-

Employer’s Requirements

6
-
5

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

1.3

List of Goods and Related Services


1.3.1

List

of E
quipment/Goods

Item
No.

Name of Goods

Description

Unit of
Measurement

Quantity

1.

Optical Transmission
Equipment (MSPP)

MSPP equipment as per
specifications given in Chapter
2A

Set

(For detail please
refer to
Appendix
-
II)

4 (Four)

2.

IP Network Equi
pment
(Core Router)

Core Router equipment as per
specifications given in Chapter
2B

Set

(For detail please
refer to
Appendix
-
II)

1 (One)

3.

Servers of NMS and
OSS

Servers as per specifications
given in Chapter 2B

Set

(For detail please
refer to
Appendix
-
I
I)

4

(F
our
)

4.

Network Management
System (NMS) and OSS
(Operating Support
System)

Network Management System
and Operating Support System
for all active equipment as per
specifications given in Chapter
2B

Set

(For detail please
refer to
Appendix
-
II)

1 (One
)

5.

Aggregation Switch

Aggregation IP Switch
equipment as per specifications
given in Chapter 2B

Set

(For detail please
refer to
Appendix
-
II)

1 (One)

6.

Bandwidth Management
Gateway

Bandwidth Management
Gateway equipment as per
specifications given in C
hapter
2B

Set

(For detail please
refer to
Appendix
-
II)

1 (One)

7.

Spare parts for
Transmission and IP
equipment

Necessary spare parts of the
offered MSPP and IP
equipment for running the
equipment for 2 years after the
end of performance guarantee
period

Lot

1 (One)

8.

Rectifier

Output DC Capacity 300 A

Set

(For detail please
refer to
Appendix
-
II)

2 (Two)

9.

48 Volt Battery set

Capacity 2x200 AH

Set

(For detail please
refer to
Appendix
-
II)

2 (Two)

10.

Inverter

Capacity 5 KVA

Set

1 (One)

11.

Optic fiber

cable and
duct system for
Panchagarh
-
Banglabandha OFC link,
length is 56 km

48
-
fiber underground optic fiber
cable, joint closure, ODF &
other accessories, 110 mm 4
-
way PVC duct, 40 mm HDPE
duct system and related
material

Lot

(For detail please
refer to
Appendix
-
I)

1 (One)

6
-
6

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

12.

Documentation for the
equipment and systems
provided by the
Contractor

O & M Manuals, Installation
Drawings, As built diagrams etc.

Set

3
(Three)


1.3.1.1

The
Contractor

shall give detail break
-
up of the equipment, necessary accessories
a
nd installation materials such as racks, cable ways, cable etc. and shall quote
accordingly.


1.3.2

List of Related services


The
Contractor

shall provide following related services and shall quote for these services.
Contractor
’s failure to quote for any serv
ice shall mean that the
Contractor

will provide the
service “free of charge” to the purchaser. But
Contractor
’s refusal to provide any service
will result in rejection of his bid.


1.3.2.1

Survey, Network Planning & Design


The successful
Contractor

shall be resp
onsible to provide all services related to installation
survey, planning & design for all equipment/system covered by this purchase. After signing
the purchase contract a survey shall be conducted jointly by the contractor and BTCL. The
contractor shall be

responsible for planning & designing based on the survey data. Before
installation of the equipment the contractor shall submit the Installation design and drawing
along with survey report to the project office for approval. Installation shall be carried
out
as per the approved design and drawing. No modification of design is allowed without prior
approval of the project office.


1.3.2.2

Installation, Testing and Commission


1)

The
Contractor

shall be responsible to provide all services related to
installation, tes
ting, commissioning and cut
-
over services for all equipment,
materials and systems covered by this purchase including laying of duct and
optic fiber cable as per the attached BoQ in Appendix
-
I

and II
. The quality and
workmanship of the installation works m
ust be of international standard. Any
non
-
standard installation will be rejected by BTCL during implementation of the
project or during PAT of the equipment. PAC of the equipment will not be
issued until the non
-
standard installation, if identified during
PAT, is not
corrected. The
Contractor
, in his offer, shall show details of required installation
and commissioning services, for each equip
m
ent separately, per site, to come
Section 6
-

Employer’s Requirements

6
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Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

to a total price for “Installation and Commissioning Services”. For OFC Works,
Con
tractor

shall quote as per the BoQ attached in Appendix
-
I

and II
.

2)

These price breakdowns will be used for calculating revised total price if there
is any subsequent change in number of sites and/or amount of equipment.

3)

If the
Contractor

fails to give detai
l breakdown, BTCL shall reserve the right to
draw its own conclusions, as and where necessary.

4)

All costs for service shall be quoted and failure to quote shall be considered
that the
Contractor

proposes to provide this service totally

"
free of charge
" to
B
TCL.


1.3.2.3

Provisional Acceptance Test (PAT)


1)

Before acceptance of the installed system/equipment, BTCL representatives
shall carryout, on site, detailed tests of all equipment and systems to ascertain
their inter
-
working ability with relevant equipment of the
other manufacturers,
working reliability, concurrence to agreed technical and other specifications,
inventory checking of installed equipment
,

etc. Such tests shall be termed as
“Provisional Acceptance Test (PAT)”. Prior to
the
commencement of such
tests,
the contractor shall submit a proposed procedure for the PAT to be
subsequently passed by BTCL. The PAT will be done by a joint team of BTCL
Engineers and
Contractor
’s Engineers.


2)

On completion of installation and self
-
testing of any system/ equipment, the

Contractor

shall submit 3(three) copies of self
-
test results to BTCL and offer
that system/ equipment for Provisional Acceptance Test (PAT). BTCL shall
start such tests within one month after receipt
of
the request. The
Contractor

may, upon agreement by b
oth part
ies
, offer PAT for any part or parts of the
total system.
BTCL may also ask the
Contractor

for the
partial PAT.


3)

The
Contractor

shall be totally responsible for arrangement of all equipment,
consumables, test gears and measuring equipment required
for the PAT. All
costs for materials and service shall be quoted and failure to quote shall be
considered that the
Contractor

proposes to provide this service totally "
free of
charge
" to BTCL.

4)

The
Contractor
’s engineer shall be liable to make necessary arr
angement
to
complete any kinds of tests requested by BTCL PAT members during PAT
procedure.

6
-
8

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope


5)

In addition, the
Contractor

shall have to provide per

diem costs to PAT
engineers as per
the
following:

a)

Number of BTCL
’s

PAT Engineers for all equipment sites cove
red by this
purchase

: 5

(
five
)

b)

Number of days allowed for per diem charge

: 15

(fifteen) working days per
person for all the sites

c)

Per diem charge to BTCL
’s

PAT Engineers

:
Taka1000

per person

d)

Other facilities

:
Transportation


However, the
Contractor

sha
ll note that, if necessary, any or all PAT can continue for more
than the above scheduled period; but, in such case, the
Contractor

shall not be liable to
pay per

diem for those additional days.


1.3.2.4

Final Acceptance Test


1)

After completion of the PAT and cut
-
o
ver of the system, the Engineers of the
Contractor

will take prompt necessary steps to remove all types of faults and replace
all types of faulty equipment at the cost of the supplier. At the end of the “Performance
Guarantee Period for the Contract”, the
overall performance of all equipment will be
reviewed and this review shall be termed as “Final Acceptance Test (FAT)”.


2)


The review shall include (but not limited to) the required working reliability and
performance standards of the equipment to meet tend
er specifications, the
Contractor
’s responsiveness to resolve all shortcomings mentioned in PAT reports
and the
Contractor
’s removal of all pending & outstanding faults or shortages
encountered during the Performance Guarantee Period for the Contract. When

this
FAT becomes due, the
Contractor

shall make an official request to BTCL for starting
of the FAT and BTCL shall start the FAT within one month after receipt the request
from the
Contractor
.


3)

The
Contractor

shall be responsible for arrangement of all eq
uipment, consumables,
test gears and measuring equipment required (if any) for such review tests. All costs
for materials and service (if any) shall be quoted and failure to quote shall be
Section 6
-

Employer’s Requirements

6
-
9

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

considered that the
Contractor

proposes to provide this service tot
ally
"free of
charge
" to BTCL.


1.3.2.5

Training

and Factory Test


The
Contractor

shall provide
Local
training to BTCL Engineering personnel on the
equipment and systems to be provided under the purchase. The curriculum shall be
enough to facilitate transfer of te
chnology for planning, designing, expanding and proper
operation & maintenance of all the systems covered by this purchase to BTCL engineering
personnel.
Contractor shall also arrange a Factory Test at the factory premises

in
presence of BTCL engineering p
ersonnel, PMU and MoICT officials
.
Contractor

shall
include
total

price for Factory
Test

and Local training

separately
. Failure to quote shall be
considered that the
Contractor

proposes to provide this service
totally "free of charge" to
the Employer
.

1.3.2.5.1

Loca
l Training at Dhaka

The
Contractor

shall provide training to BTCL Engineering personnel on the equipment
and systems to be provided under the purchase in the training center of BTCL in Dhaka for
the MSPP, Core Router, NMS and Aggregation Switch equipment.
Detail of the Local
training is given below:

a.

Number of Trainee:



10 (Ten)

b.

Number of working days:


15 (fifteen)

c.

Per diem charge for the trainees:

BD Taka 500 per person per working day

1.3.2.5.2


Factory Test

The Bidder shall be responsible for arranging Factor T
est for MSPP and Core
Router equipment at the factory premises of the respective equipment. Such test
must be conducted before shipment of the equipment. Detail of the factory test is
given below:

Number of official of the purchaser:

5

(Five
) [2 BTCL Engin
eers, 2 PMU and
1 MoICT officials]

Number of days for factory test:

7 (Seven)

Per diem charge for the inspectors:

US$ 80 per person per day

Other facilities for the inspectors:

Both way air ticket, comfortable
Accommodation, transportation, medical
fac
ilities (if necessary) etc.


6
-
10

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

1.3.2.6

Maintenance Support up to Performance Guarantee Period


1.3.2.6.1

The
Contractor
, at his own cost, shall engage at least one Operation and
Maintenance (O&M) Engineer for each system. The Engineers shall be
stationed in Dhaka to provid
e full maintenance support for all equipment
and sites covered by this purchase up to the end of the Performance
Guarantee Period. This support service shall start from the date of cut
-
over of the first site covered by this purchase. All the spare parts
ne
cessary during the Performance Guarantee Period shall be supplied by
the
Contractor

at his own cost.

1.3.2.6.2

The support Engineer shall be fluent in English and shall have enough
knowledge of the relevant system to effectively solve all O&M problems;
the engineer

must also have at least 3(three) years of prior experience of
providing such support in other countries. The
Contractor

shall be
responsible for all types of expenditure to be borne for the manpower,
including all types of transportation.


1)

R
egular visits
to all relevant sites to check and monitor different aspects of the
working systems

2)

T
o remain stand
-
by to respond in the shortest possible time during any call by
BTCL

3)

H
elping BTCL personnel to solve different software and hardware problems
related to prop
er O&M of the equipment

4)

I
dentify and remove different bugs in the system's operational software

5)

H
elping BTCL personnel to properly maintain relevant databases related to
O&M of the system

6)

P
reparation and submission about different aspects of O&M of the sys
tem

7)

G
iving on
-
the
-
job training to BTCL personnel about different aspects of O&M

8)

A
dvising BTCL about different aspects of O&M, system dimensioning,
expansion
,
etc.

9)

T
ransfer of technology to BTCL personnel


1.3.2.7

Other unforeseen services


Section 6
-

Employer’s Requirements

6
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11

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

Besides the services lis
ted above, the
Contractor

shall provide other services, if
required, for successful turn
-
key implementation of the Project.


1.3.2.8

Quotation for Operation and Maintenance cost for 5 years after Guarantee

period.


Contractor

shall quote operation and maintenance

cost for the major equipment
such as mentioned below to be supplied under this purchase for duration of five
years starting from the end of guarantee period.


The said operation and maintenance cost shall include cost of man power, cost of
spare parts, co
st of energy, and other cost ( if any Environmental control etc.) for
evaluation purpose, the energy cost may be taken as BDT 10.00 (USD 0.125) per
KWH.
Contractor

shall include a table for detail breakdown of the “Operation and
maintenance cost”.


6
-
12

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

1.4

Delive
ry and Completion Schedule


The delivery period shall start as of EDC (effective date of contract) which is the date of
opening the irrevocable letter of credit (L/C).

Item
No.

Description

of Goods

or

Related Services

Delivery
Schedule

(
Duration
)

Location

Required
Arrival Date of
Goods and/or

Completion
Date for
Related
Services

01

Optical Transmission Equipment
(MSPP)

90 days from
EDC

Thakurgaon,
Panchagarh,
Chuadanga &
Meherpur

120 days from
EDC

02

IP Equipment (Core Router and
Server)

90 days from
EDC

Dhaka

120 days from
EDC

03

Network Management System
(NMS)

90 days from
EDC

Dhaka

120 days from
EDC

04

Aggregation Switch

90 days from
EDC

Dhaka

120 days from
EDC

05

Bandwidth Management Gateway

90 days from
EDC

Dhaka

120 days from
EDC

06

Spare parts

for Transmission and
IP equipment

90 days from
EDC

Dhaka

120 days from
EDC

07

Rectifier

90 days from
EDC

Panchagarh &
Meherpur

120 days from
EDC

08

Battery set

90 days from
EDC

Panchagarh &
Meherpur

120 days from
EDC

09

Inverter

90 days from
EDC

Dhaka

120 days from
EDC

10

Documentation for the equipment
and systems provided by the
Contractor

90 days from
EDC

Dhaka

150 days from
EDC

11

Survey, Network Planning &
Design

30 days from
EDC

Dhaka,
Thakurgaon &
Panchagarh

45 days from
EDC

Section 6
-

Employer’s Requirements

6
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13

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

12

Construction of

Optic Fiber Cable
network from Panchagarh to
Banglabandha (including
provisión of connectivity to Tetulia
BTCL Exchange) including supply
of 48
-
fiber underground optic fiber
cable, joint closure, ODF & other
accessories, 110 mm 4
-
way PVC
duct, 40 mm HDPE
duct system
and related material

90 days from
EDC

Panchagarh &
Tetulia, along the
Panchagarh
-
Banglabandha
highway

120 days from
EDC

13

Factory Training

90 days from
EDC

Factory premises
of the
manufacturer(s)

120 days from
EDC

14

Local Training

90 days f
rom
EDC

Dhaka

150 days from
EDC

15

PAT

120 days from
EDC

Dhaka,
Thakurgaon,
Panchagarh,
Meherpur &
Chuadanga

150 days from
EDC

16

Maintenance support during PG
period

2 years and 6
months from
the EDC

Dhaka,
Thakurgaon,
Panchagarh,
Meherpur &
Chuadanga

2

years and 6
months from the
EDC

17

FAT

2 years and 6
months from
the EDC

Dhaka,
Thakurgaon,
Panchagarh,
Meherpur &
Chuadanga

2 years and 6
months from the
EDC




6
-
14

Section 6
-

Employer’s Requirements

Procurement of Plant
for

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EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

2.

Specification


TECHNICAL SPECIFICATION OF NETWORK EQUIPMENT (CHAPTER
2
)


CHAPTER 2
A: REQUI
REMENTS OF TRANSMISSION NETWORK EQUIPMENT

CHAPTER 2
B: REQUIREMENTS OF IP NETWORK EQUIPMENT

CHAPTER 2
C: REQUIREMENTS FOR OPTIC FIBER CABLE AND OUT SIDE PLANT (OSP) WORKS

CHAP
TER 2
D: REQUIREMENTS FOR POWER PLANT EQUIPMENT





Section 6
-

Employer’s Requirements

6
-
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Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
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-
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A.

CHAPTER 2
A: REQUIREMENTS OF TR
ANSMISSION
NETWORK EQUIPMENT


1.0 MSPP


1
.1
INTRODUCTION


1
.
1.1

The Specifications in this chapter covers the technical requirements of Multi Service
Provisioning Platform (hereinafter “MSPP”) on single mode optical fibers conforming to ITU
Rec. G. 652 at

1550 nm and 1310 nm.


1
.
1.2

The MSPP equipment/system shall conform to the following ITU
-
T
and IEEE
r
ecommendations. The latest version of ITU
-
T recommendations at date of contract
signature will also be applicable.


G.691 ‘Optical interfaces for single
channel STM
-
64 and other SDH systems with optical
amplifiers’

G.702 ‘Digital hierarchy bit rates’

G.703 ‘Physical/electrical characteristics of hierarchical digital interfaces’

G.704 ‘Synchronous frame structures used at 1544, 6312, 2048, 8488 and

44736 Kb
ps
hierarchical levels’

G.707/Y.1322 ‘Network node interface for the synchronous digital hierarchy

(SDH)’

G.781 ‘Synchronization layer functions’

G.783 ‘Characteristics of synchronous digital hierarchy (SDH) equipment

functional blocks’

G.784 ‘Synchronous

Digital Hierarchy (SDH) management’ (06/99)

G.798 ‘Characteristics of optical transport network hierarchy equipment functional blocks’

G.813 ‘Timing characteristics of SDH equipment slave clocks (SEC)’

G.823

The control of jitter and wander within digita
l networks which are based on the 2,048
Kbps hierarchy


G.825

The control of jitter and wander within digital networks which are based on the
Synchronous Digital Hierarchy (SDH)


G.841 ‘Types and characteristics of SDH network protection architecture’

G.9
57 ‘Optical interfaces for equipments and systems relating to the SDH’

6
-
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G.7041/Y.1303 ‘Generic framing procedure (GFP)’

G.7041/Y.1303 ‘Amendment 1’

G.7042/Y.1305 ‘Link capacity adjustment scheme for virtual concatenated signals’

G.7042/Y.1305 ‘Corrigendum 1


G.7042/Y.1305 ‘Corrigendum 2’

IEEE 802.1q ‘Virtual Bridged Local Area Networks. 2003 edition’

G.8031 . for Ethernet Linear protection switching

G.8032 for Ethernet Ring protection

Y.1731 for performance monitoring

IEEE 802.3 ‘Carrier sense multiple acces
s with collision detection (CSMA/CD) access
method and physical layer specifications. 2002 edition’


1
.
1.
3

The following
interfaces

shall be supported in the offered MSPP transmission

system:

1)

E1 at 2,048 Kbps,
75 ohm

2)

STM
-
1

(including STM
-
1 POS)
at 155,520

Kbps

3)

STM
-
4
(including STM
-
4 POS)
at 622,080 Kbps

4)

STM
-
16
(including STM
-
16 POS)
at 2,448,320 Kbps

5)

STM
-
64 at 10 Gbps

6)

Fast Ethernet (L1 and L2 Type)

7)

Gigabit Ethernet


1.
1
.
4


The supply of MSPP equipment shall
be
consist
ed

of the required MSPP equipment and
associated with Elements Management system (EMS). Two numbers of MSPP are
included in the scope of the tender. One will be installed at Panchagarh and the other at
Thakurgaon BTCL station. The interface requirements of the MSPP are given in Annex
-
1.


2.1



NETWORK CONFIGURATION

The MSPP system supplied by
Contractor

shall support the following network
configurations;

1) Linear a
dd/drop multiplexing (ADM)

2)

Multi
-
Ring

3)

SDH sub
-
Network Connection Protection Ring

(
SNCP Ring
)

Section 6
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-
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4)

Multiplexer Section Shared P
rotection Ring

(
MS
-
SPRing
)

5)

Subtending Ring

6)

Point
-
to
-
point with or without 1+1 MSP.


3.1


ADD/DROP MULTIPLEXER EQUIPMENT


3
.1.1

The equipment shall provide the ability to access VC’s from STM
-
N signal. A mixture of VC’s
{E1, E3/DS3, STM
-
1, STM
-
4, STM
-
16} shall be possible.

3
.1.2 This shall at least support E1 (2

Mbps), E3/DS3 (34/45 Mbps),
S
TM
-
1 (155 Mbps),
STM
-
4
(622 Mbps), STM
-
16 (2.5 Gbps) and STM
-
64 (10 Gbps).

3
.1.
3
Remote loopback functionality shall be provided for test purpose.

3
.1.
4
The MSPP eq
uipment shall terminate and originate both the Multiplexer Section Overhead
(MSOH) and Regenerator Section Overhead (RSOH).

1)

Automatic Protection Switchover for STM
-
N signals shall be available on tributary
interfaces.

2)

The equipment shall offer the followin
g network protection: linear multiplex network
protection (MSP), sub
-
network connection protection and MS
-
SPRing.


4.1



SWITCHING CAPACITY AND PROTECTION


4.1.1


Switching and/or cross connect matrix

1)

The connection matrix shall be non
-
blocking at VC12, VC
3 and VC4 level for STM
-
4
and STM
-
16
.

2)

Grooming at the VC
-
12 level shall be supported for STM
-
1, STM
-
4, STM
-
16 and STM
-
64
.

4.1.
2


Contractor

shall provide the
switching capacity

at High Order (HO) & Low Order (LO) from
a single shelf as follows;

1)

Higher orde
r: 240G

or more

2)

Lower order: 10G

or more


4.1.
3

Hardware protection and redundancy

1)

Contractor

shall describe
whether the

cards are protected
or not
and
its

type

such as
1+1 or N+1

6
-
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|
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-
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-
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2)

Cross connection & timing card
, power supply card and

aggregation signal ca
rds shall
be supported by
1+1
protection.


4.1.
4


Traffic protection


1)

Path protection (SDH sub
-
Network Connection Protection Ring (SNCP Ring)
protection shall be supported.

2)

MSP linear 1+1 and Multiplexer Section Shared Protection Ring (MS
-
SPRing)
protectio
ns shall be supported. If the optical ports are not configured as 1+1 MSP then
they shall independently.

3)

Sub
-
50ms packet services protection on single ring shall be supported as per ITU
G.8032

4)

At least one kind of path protection is mandatory
.


5.1


OPTIC
AL INTERFACES FOR SYSTEM

5
.1.1

Optical interfaces for system shall be according to ITU
-
T Rec. G.957 and G.691.

5
.1.2

The
MSPP system offered by
Contractor

shall
provide the following interfaces

and
wavelength.

1)

Digital Signal: STM
-
1, STM
-
4, STM
-
16 and STM
-
64 according to Rec. G.707/Y.1322,
G.
783 and
G.
798.

2)

Operating wavelength range: 1530~1570nm and 1293
-
1334nm (Except for SX SFP of
GE)

5.1
.
3

MSPP
system interfaces

1)

STM
-
1, STM
-
4, STM
-
16 and STM
-
64 interfaces shall be complaint with ITU
-
T
Recommendation G.9
57.

2)

E1 and E3/DS3 interfaces shall be
complaint with ITU
-
T Recommendation G.
703.

3)

Parameters and STM
-
1, STM
-
4, STM
-
16 and STM
-
64 optical interfaces will be as per
relevant ITU
-
T Recommendations, G.707, G.783 and G.798.
Contractor

should
indicate any deviati
on/ elaboration of the ITU Recommendation.

4)

2 Mbps and DS3/E3 tributaries shall be 75 ohm.

5)

Management interfaces applied to this MSPP equipment shall be complaint to ITU
-
T
Recommendation G.703.
Contractor

may indicate other management interfaces of
their sy
stem.

6)

External synchronization shall be a 2048 Kbps interface as defined by ITU
-
T
Recommendation G.703, Section 9. The impedance of 75 ohm should be supp
orted
.


Section 6
-

Employer’s Requirements

6
-
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Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
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6.1

E
thernet interfaces

The proposed MSPP system shall support the following.

1)

The Ethernet sig
nals may be 100Base
-
FX, 100Base
-
TX and
1000Base
-
SX/LX.

2)

The proposed MSPP system shall support Ethernet over SDH (EoS) functionality as
follows;

a)

Low order virtual concatenation (VC
-
12
-
Xv) and high order virtual concatenation
(VC
-
3/4
-
Xv)

b)

EoS frame format pro
cess by
Frame Mapped
Generic Framing Procedure (GFP
-
F
)

c)

EoS bandwidth adjustment by Link Capacity Adjustment Scheme (LCAS) (ITU
-
T
G.7042)

d)

Both copper Fast Ethernet (FE) and optical Gigabit Ethernet (GbE) ports will
support auto
-
negotiation capabilities as
per IEEE 802.3 standards. Auto
-
negotiation
feature shall be user
-
configurable

e)

Jumbo frames with a maximum MTU of 9216 bytes on each port

f)

IEEE802.3x Flow Control and Back
-
pressure.

g)

Ethernet cards shall support minimum 48msec differential delay compensation.

h)

It should be possible to map upto 48 VC
-
12s per 10/100 Mbps Ethernet port. The
maximum bandwidth available for all Ethernet interfaces combined should be 63
VC
-
12s(One STM
-
1)

3)

Any other latest features as available at the time of delivery of the system sha
ll also be
provided.



6.2

LAYER
-
2 SWITCHING FUNCTIONALITY


For Ethernet interface the MSPP system must have provision to support layer
-
2 switching
functionality (in addition to above mentioned in clause 6.1) as follows;


1)

The card shall support flow contr
ol

with full bandwidth mapping of

10BaseT/100BaseTX or GigE clients into SDH containers

2)

Traffic control (IEEE 802.3) by pause framing

3)

Per port rate limiting at 64 kbps granularity from 64 Kbps to 100Mbps for FE ports and
64 kbps to 1 Gbps for GbE port Swi
tch shall be capable of supporting MAC learning,
but it shall be possible to disable it. L2 address table shall atleast support 16 K entries.

4)


It shall support L2 multicasting with atleast 256 entries

5)

The card shall support atleast 4094 VLAN tags

6
-
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-
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6)

It shall
stack multiple VLAN tags (Q in Q)

7)

It shall provide services like EPL, EVPL, EPLAN, and EVPLAN

8)


Link aggregation and packet priority

9)

Point
-
to
-
point, Point
-
to
-
Multipoint and Mulitpoint
-
to
-
Multipoint VLAN tunneling shall be
supported.

10)

Spanning Tree Protocol (
STP, IEEE 802.1d) or rapid STP (IEEE 802.1w) ), VLAN
tagging and classification (IEEE 802.1 Q), Per VLAN STP (IEEE 802.1s)

11)

The total uplink bandwidth from Ethernet card shall be STM
-
8.

12)

8 Class of Service (CoS) per port.

13)

Up to 2000 Ethernet services. The se
rvices supported can be a mix of E
-
Line and E
-
LAN as defined in MEF 6, MEF 9 and MEF 10 specification documents.

14)

Sub
-
50ms packet services protection on single ring and dual
-
ring interconnect
topologies with ERP as per ITU G.8032.

15)

IEEE 802.1ag messages



LT
M Messages



CCM Messages



LBM Messages



DMM Frames


7.1


M
inimum capacity

(a) The MSPP system shall support minimum capacity
per shelf
as follows;

1)

STM
-
64: 4 ports or more

2)

STM
-
16: 8 ports or more

3)

STM
-
4: 16 ports or more

4)

STM
-
1: 32 ports or more

5)

E1: 252 port
s or more

6)

100Base
-
FX /Tx: 24 ports or more

7)

1000Base
-
SX/LX: 8 ports or more


8.1

DATA CHANNELS

8.1.1


Transfer of bi
-
directional data between line terminals and regenerators shall be provided
using SOH bytes according to ITU
-
T Rec. G.707/Y.1322.

Section 6
-

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8.1.2


Two data channel using data bits D1 to D12 shall be used for Network Management.

Data communication shall be carried on the SDH Section Overhead Byte. The RS port
shall use the D1
-
D3 and the MS port shall use the OH bytes D4
-
D12.


9.1

OVERALL PERFORMANCE
REQUIREMENTS


9.1.1


General characteristics of Synchronous Line System shall conform to ITU
-
T Rec.G.783
and G.798.


9.1.2

E
rror performance


1)

The SDH shall meet the relevant performance objectives of ITU
-
T Rec. G. 821 &
G.921 and any other ITU
-
T relevant

new recommendations at the tie of supply under
the worst environmental condition.

2)

Long term Bit Error Ratio (BER) in each direction shall be less than 10E
-
10 over a
period of 14 days.

3)

The percentage of Errored Seconds (ES) shall be measured at 2 Mbps leve
l over a
period of 14 days.

4)

The percentage of severely Errored Seconds shall be measured at 2 Mbps level over a
period of 14 days.

5)

The bringing into service limits for any multiplex section BER shall be measured during
4 days on a 2 Mbps port.


9.2

JITTER

AND WANDER


9.2.1


J
itter
and wander
tolerance
for
STM
-
N
input ports

shall comply with ITU
-
T Rec. G.
825
.

9.2.2

The output jitter requirement shall comply with ITU
-
T Rec. G.813.

9.2.3

Jitter transfer requirements shall be according to ITU
-
T Rec. G.783, G
.813 and G.825.

9.2.4

The SDH jitter requirements for DS
-
1E shall be according to ITU
-
T Rec. G.783.

9.2.
5


Jitter parameters and limit present on STM
-
N shall be compliant to ITU
-
T Rec. G.783.


9.3

SYNCHRONIZATION


6
-
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9.3.1

The Synchronization shall be acco
rding to ITU
-
T Rec. G. 783 and Multiplexer Timing
Source function shall be provided according to ITU
-
T Rec. G. 783.


9.3.2

The External Synchronization Interface shall be 2048 Kbps or 2048 Khz interface as
defined in ITU
-
T Rec. G.703.


9.3.3

The system s
hall be able to be synchronized on the following sources:


1)


2048 Kbps or 2048 Khz interface by G. 703

2)


STM
-
N aggregate or clock

3)


From an internal oscillator with accuracy and stability in accordance

4)


With ITU
-
T recommendations G.813


9.3.4

The fall back p
riority for selection of these timing sources and their priority must be
selectable by software either by Craft Interface Terminal (CIT) or by the Elements
Management System(EMS).
Contractor

shall indicate the priority used.


9.3.5

In case of failure of t
he active signal source the system shall switch automatically to
another predefined source according to the priority setting. The switching process shall
not interrupt the carrying traffic.


9.3.6

The timing selectors and internal oscillator shall comply
with G.813 in general.


9.3.7

The clock reference shall have 4 modes of operation: External, looptime, free
-
run, and
holdover.


9.3.8

In the holdover mode, the frequency of the last valid referenced shall be held with a
maximum drift of 1 ppm/ day.


9.3.
9

The accuracy of the local oscillator shall be better than + 4.6 ppm.


9.3.
10


Loss of Synchronization

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1)

Restoration to higher priority timing references from lower priority timing references or
restoration from self
-
timing operation, shall be automatic, w
ith an inhibit feature
provided.

2)

Automatic recovery time shall be 10 to 20 seconds, when valid timing is available and
must be hitless.

3)


The following conditions shall be regarded as loss of synchronization:

a)


Loss of main signal

b)


Receiver AIS

Other criteri
a for loss of synchronization shall be stated by
Contractor
, if any
.


10.1

T
IMING INTERFACE

10.1.1

Physical/electrical characteristics of the external timing signal input of the Network
Element (NE) shall be in accordance with G.703.

10.1.2

The Network
Element (NE) shall provide at least two independent external timing signal
input ports.

10.1.3

The network Element (NE) shall provide one or more timing output ports with the
Physical/electrical characteristics according to G.703.

10.1.4

The ports shall
be disabled if the system is synchronized to a low
-
quality timing source.

10.1.5

Each network component except regenerators shall have the following external, non
-
traffic, synchronization ports;

Input ports for 2048 KHz or 2048 Kbps external timing.


11.1


ALARMS


11.1.1

In general all NE shall collect the information generated in each of the functional blocks as
defined by ITU
-
T Rec.G.783 for events as alarms, errors and diagnostic information.

11.1.2 The following alarm indications shall be provided bu
t not limited to:


1)

LOS (Loss of Signal)

2)

EBER (Excessive Bit Error Ratio)

3)

SD (Signal Degrade)

4)

LOP (Loss of Pointer)

5)

LOF (Loss of Frame)

6
-
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6)

MIS (Mismatch path trace ID/signal label)

7)

LOM (Loss of Multiframe)

8)

AIS (Alarm Indication Signal)



12.1

TRANSMISSION DELA
Y

12.1.1

The delay time for a transmission signal from its input to its output for
Regenerators/OA/pass through ADM shall be less than 10 ms.

12.1.2


The delay time for a transmission signal from its input to its output for all other network
components sh
all be less than 125 micro
-
seconds.

13.1

Present interface and other requirement of MSPP


13.1.1

Please refer to Annexure


1 for present requirements of interfaces.

Any disagreement
of the clause 13.1.1
will be treated as “
Change of Substance
”. The said

penalty is not applicable for any shortage of quantity in the BoQ only if the offered MSPP
shelf/sub
-
rack can accommodate the short quantity. In case of such shortage of quantity in
BoQ, the relevant clauses of Chapter 6 will be applicable.


13.1.2

Face
Lay
-
out of the equipment offered for each site

The
Contractor

must submit site wise Face lay
-
out view of actual configured MSPP
equipment proposed at different sites. Face lay
-
out view must be submitted for different
sites separately. These lay
-
out view dr
awings shall include all the quoted Racks/Sub
-
racks/chassis of that specific site, clearly showing all the slots on each equipment (Whether
equipped or not). Different Cards (minor items need not be shown) quoted in BOQ shall be
shown on these Racks/Sub
-
ra
cks/chassis on specific slot number where these cards are to
be inserted for a configured equipment to satisfy technical requirements.


14.1

OPTICAL SAFETY (AUTOMATIC
-
LASER SHUTDOWN) REQUIREMENTS




a.

Generally if the section is interrupted (e.g. if a

fiber breaks), then measures shall be
implemented to ensure that no risk is caused by laser light escaping uninterruptedly.

b. In the event of an optical signal fail at the incoming port with a duration of
<

500 ms,
and certainly within 600 ms, the laser
in the opposite direction is switched off by the
receiver within 0.85 seconds, and the affected segment will be thus shutdown. It shall not
be possible to activate the forced facility during error
-
free operation.


Section 6
-

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6
-
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15.1

TECHNICAL REQUIREMENT FOR MANAGEMENT

SYSTEM

15.1.1

The following Management facilities must be provided.

1)


Fault Management

2)

Configuration Management

3)


Security Management

4)


Alarm & Event Management

5)


Performance Management

6)


Software upload/download capability


16.1

NETWORK ELEMENT SOFTWARE AND

HARDWARE
S
PECIFIC REQUIREMENTS

16.1.1


Interface Terminal

A Interface Terminal enables the maintenance staff at every location to directly access
the NE’s management functions via the PC

i
nterface. It has the ability to operate each
type of equipment be
longing to the network.

16.1.2


Normal operation of the transmission equipment sh
ould not

require use of the NES
functions. The use of terminal shall be reserved for special operational needs requiring
direct intervention on the equipment (installation, pr
eparation for start of service,
maintenance and repair, operation in the event of unavailability of the NES.

16.1.
3

The failure of the management system shall not have any immediate consequences on
the function of the telecommunication systems being manag
ed
.

If there is a failure in the
power supply, all data concerning parameter values, network configuration, passwords

and

user groups shall be retained. After the return of the power supply, the data referred
to above shall be reloaded automatically withou
t any mutilation of the data and /or
hardware.

16.1.4

Contractor

shall provide Desktop Computer with latest configuration of Hardware and
with 17 inch LCD monitor for NES function at all the MSPP stations.
Contractor

shall also
provide one portable Comput
er (Notebook PC) of renowned brand and of latest
configuration (at least Intel Core i3 processor, 4 GB RAM, 160 GB HDD, Combo drive
etc.) for NES function. After sale service must be available for the offered Notebook PC in
Bangladesh.


17.1

Network Elemen
t Software (NES) Features and Facilities

17.1.1

NES

shall
support

Graphical User Interface

(GUI)
.


17.1.2

Alarms shall be displayed on
NES screen

in colours representing the severity (critical,
major and minor) and the state of the alarm. The operator sh
all be able to acknowledge
and investigate the cause of the alarm.

17.1.3

Appropriate
n
etwork
e
lement
c
ontrol
s
ystem is to be available.

6
-
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17.1.4 NES
shall

be connected to the proposed
n
ode equipment via IP interface.

17.1.
5


Since the operator has faci
lities to monitor and control in real
-
time, the
NES

shall provide
facilities to access logged data and to analyze them.


18.1

S
ECURITY

M
ANAGEMENT

The architecture and design proposed for the MSPP shall incorporate features to ensure the
security of the
n
e
twork
m
anagement. This includes access security and data security.

18.1.1


Access Security

Facilities shall be provided to ensure that only authorized users are allowed to access all or
a certain parts of the system. These include comprehensive log
-
in oper
ator identities and
password facilities.

18.1.2


Data Security

Adequate arrangement to protect data and to recover data lost due to stoppage or failure of
the EMS hardware or communication system is to be provided.


18.2


ALARM AND EVENT MANAGEMENT

18.2.1


Alarms and events shall be reported

18.2.2


Adequate arrangement for display and logging

s
hall be provided

if
there is any
event
received at the NES
.

18.2.3


All alarms received at the NES shall cause a change of colour of the appropriate object
o
n
screen
. There shall be
also
a visible indication on screen that there is an alarm
somewhere in the system.

18.2.4


In addition to the displays, alarm details may be displayed in tabular format.


18.3


PERFORMANCE MANAGEMENT

18.3.1

Node performance data shall be
collected as defined by standard.

18.3.2

The network element shall monitor the performance parameters and records the data
for current interval, 15 minutes and previous day.

18.3.2

Facilities should be available to backup stored log data and other data





18.4


C
ONFIGURATION MANAGEMENT


18.4.1

MPS/APS groups shall be configured

18.4.2

GUI for easy management

18.4.3

Creating and deleting cross connects

Section 6
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Employer’s Requirements

6
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27

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

18.4.4

Operator shall be able to manage all proposed MSPP equipment and other related
accessories.


19.1

D
ATA ANALYSIS REPORT

Analysis facil
ities shall be provided to show how the system has performed over a period of
time and to enable identification of trends indicating potential future failures. Data from
current logs or historical data may be analyzed.

Results of data analysis can be pres
ented in graphical or tubular format.


20.1


N
ES SOFTWARE

20.1.1


The NES software shall be based on UNIX/Linux
and
/
or

WINDOWS based operating
system.

20.1.2


The NES shall be a multi

task and multi
-
user system.

20.1.3

The offered software architecture sh
all be open and configurable to enable future
extensions.

20.1.4

Software license shall be quoted for life time of all proposed MSPP equipment under this
purchase.


20.2


N
ES HARDWARE INSTALLATION AND COMMISSIONING

The NES Hardware will be thoroughly teste
d during and after installation. Detailed testing
methods are specified by
Contractor
.


20.3


HARDWARE AND SOFTWARE MAINTENANCE

20.3.1


Contractor

shall maintain
all hardware and software
until the end of
guarantee

period.
After the
performance guarantee

p
eriod, a maintenance Contract may be signed with the
supplier/
manufacturer.

20.3.
2

Contractor

must give a complete list of hardware supplied and the software used in the
EMS System.

20.3.
3

Original Software must be supplied in CD as per list above.

20.3.
4

Backup media shall be quoted for EMS to save configurable data base & software.

20.3.
5

R
estore/Recovery & maintenance procedure shall be clearly documented in sequential
order.

20.3.
6

Good quality document (i.e.
,

easily understandable by operator) sha
ll be quoted both for
h
ardware and
s
oftware in CD ROM (2 set).


6
-
28

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

21.1

ENVIRONMENTAL R
EQUIREMENTS

The equipment shall
satisfy
the following environmental conditions

21.1.
1

Guaranteed
c
ontinuous
p
erformance

1)


Ambient
t
emperature: 0°C to 45°C

2)


Relative humidit
y: Up to 90% at no
n
-
condensing


21.1.
2


Storage and
t
ransportation in
p
ackages

1)


Ambient temperature:
-
30°C to 50°C

2)


Relative
h
umidity: Up to 95% at no
n
-
condensing


22.1


EQUIPMENT DESIGN REQUIREMENTS

22.1.1


The supplier shall guarantee trouble
-
free operat
ional performance of the equipment in the
electromagnetic environment as well as electrostatic discharge
.

22.1.2


It should be possible to expand the system on modular add
-
on basis and not by
replacement of shelves and racks.


22.1.3


Up gradation/expansio
n of software shall be without interruption.

22.1.4


Tributary addition/up gradation shall be made in
-
service without causing bit errors on the
tributaries in use.

22.1.5


One standard 2.2 meter rack shall be provided with each MSPP
Shelf.

22.1.6


It shoul
d be possible to house a mixture of different type of sub
-
shelves in the same rack.


23.1


OPTICAL FIBER ATTENUATORS

22.1.1


For looping (during line
-
up measurements) and for short line sections optical attenuators
with connectors both at the input and out
put port may be used.

23.1.2


The attenuation value, operating wavelength region, and type of fiber shall be clearly
marked on the optical attenuator.

22.1.3


The connector at the input and output pots shall be compatible with the offered
equipment and sha
ll be indicated by
Contractor
.

23.1.4


The variable attenuator shall be provided with calibrated dial/scale, so it can be used as
tool for testing and other purposes.


24.1


INPUT VOLTAGE FOR MSPP EQUIPMENT

Section 6
-

Employer’s Requirements

6
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29

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

For the MSPP system equipment, the input voltage
will be
-
48 VDC

(
-
43.5 ~
-
54)
.


25.1

DIGITAL DISTRIBUTION FRAME (DDF)

25.1.1

Contractor

shall supply and install necessary number of Digital Distribution Frames (DDF)
for all E1 interfaces of the system. The relevant frame for connectivity at E1 level sh
all be
separate and shall have the following characteristics
;

1)
The DDF shall be housed in the same rack with the MSPP equipment or in separate rack
and shall have the facility to be accessed from all sides
.

2)
Nominal Impedance of termination
:

75 ohms on

co
-
axial pair
.


3)
Connector:
BNC or 1.5/5.4 coaxial connector (2.5mm in case of inside and 3.0mm in
case of outside).

4)
The incoming cables from switching (or any other user) and transmission side
s

(from
MSPP) shall be connected on the back
-
side on the

base connectors

and connection will
be made between the transmission and user side by U
-
link in the front side.

5)
Each DDF shall be fully
-
equipped with connectors for the E1 capacity provided in the
MSPP
.

6)
The DDF shall be generally located inside the
transmission room of BTCL, but it can also
be shifted to any other room on mutual agreement.

25.1.2

Contractor

shall provide necessary co
-
axial cable, connectors etc
between new DDF and
MSPP. And
Contractor

shall also provide connector and co
-
axial cable

between new DDF
and existing Switching DDF of BTCL for at least 32 E1s at each of Panchagarh and
Thakurgaon stations.
The nominal impedance of the cable shall be 75 ohms, the cable
must comply with relevant ITU
-
T recommendation.

25.1.3

DDF shall be insta
lled at all new MSPP nodes and the port quantity for each node shall
include E1 ports suggested.

25.1.4

Contractor

shall quote prices for such works and failure to quote for any of these works
shall mean that
Contractor

shall provide DDF including related

service “free of charge to
BTCL as per BTCL’s requirement.


6
-
30

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

Annex
-
1


Interface requirements for MSPP


Note: STM
-
16 and STM
-
4 ports shall be configured for 1+1 MSP prote
ction.


Site





Item

Standard
Rack

MSPP
Shelf
with
common
boards

STM
-
16 Intf

STM
-
4 Intf

STM
-
1 Intf

FE (L
-
1)

E1

GE

S16.1

L16.1

L16.2

S4.1

L4.1

L4.2

S1.1

L1.1

L1.2

FX

TX

75
Ω

SX

LX

Panchagarh

1

1

0

0

4

0

6

2

2

8

2

0

8

63

1

1

Thakurgaon

1

1

0

0

4

2

4

2

2

8

2

0

8

63

1

1

Chuadanga

1

1

0

0

4

0

6

2

2

8

2

0

8

63

1

1

Meherpur

1

1

0

0

4

2

4

2

2

8

2

0

8

63

1

1

Section 6
-

Employer’s Requirements

6
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31

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope


B.

CHAPTER 2
B: REQUIREMENTS OF IP NETWORK
EQUIPMENT


1.0 Introduction


1.1

The
s
pecifications in this chapter cover the technical requirements of

the Access
Gateway Core and Border Connectivity Township backbone Router equipment.
They are classifi
ed as follows;


Classification

Functionality

Gateway router

Core Router

Boarder Township Connectivity
Router

Backbone Router


1.1.1

Terminologies

1)

Access Gateway is the “Core router” which provides the high
-
speed packet
forwarding and will be located a
t Moghbazar, Dhaka


2)

Border Connectivity Township Router is the core/aggregation router of SASEC
regional Network to be connected with Siliguri, India & other two SASEC
countries such as Bhutan and Nepal. Boarder Township Router will be installed
at Panchag
arh.


1.2
General Requirements of Core & Backbone Routers

1.2.1

The routers shall be
capable of high speed Internet access, remote LAN
interconnection and broadband services like
VoIP and

VOD.

1.2.2

The routers shall be capable of modular expansion.
Its

c
onfiguration and
expansion should allow flexibility.
Contractor

should give a brief description how expansion
is made.

1.2.3

They shall support
diversified range of
services including
Internet access service,
combined IP, MPLS

and Layer 2
VPN (L2VPN) an
d Layer 3 VPN (L3VPN)

service

to meet
the requirements of the entire spectrum of customers from small to large businesses.

6
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32

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

1.2.4

They shall support the simple service for customers to use in case that they have
lack of experience in IP routing.

1.2.5

The

routers shall meet a wide range of customer requirements including security,
Quality of Service (QoS) and any
-
to
-
any connectivity.

1.2.6

They

shall be capable to provide connectivity through access Router and access
switch.

1.2.7

Contractor

should offe
r a brief description of the general structure of core &
backbone Router
, port types and the number of ports
for

each type, equipment
capacity, and performance indices

1.2.8

The equipment to be proposed by
Contractor

shall have all line
-
rate interfaces
su
pporting wire
-
rate throughputs for different packet sizes such as 64, 128, 256,
1514 or any other higher size packets.


1.2.9

They shall support NetFlow or equivalent

1.2.10 The

Multicast VPN(MVPN) feature shall be supported.

1.2.11 The router shall suppo
rt GRE, IPSEC, NAT, CRTP, TCP/RTP header compression.



1.3
General IP Features

The Router shall be able to support the following software feature
;

1)

Internet Protocol
-

RFC 791

2)

Internet Control Message Protocol (ICMP)


RFC 792

3)

IP Mul
ti
cast

a)

Internet Group Ma
nagement Protocol (IGMP)


RFC 1112

b)

PIM dense mode, PIM sparse mode

c)

Multicast BGP (MBGP)

d)

Multicast Source Discovery Protocol (MSDP)


RFC 3618

e)

Source Specific Multicast (SSM)

4)

User Datagram Protocol (UDP)


RFC 768

5)

Transmission Control Protocol (TCP)


RFC

793

Section 6
-

Employer’s Requirements

6
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33

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

6)

Requirements for IPv4 Routers


RFC 1812

7)

Telnet Protocol Specification


RFC 854

8)

Network Timing Protocol (NTP)


RFC 1305

9)

IPv6 ready from day one.


1.4
Routing Features

The router
shall support
the
following diverse routing protocols.

1)

Static Routing

2)

BGP
-
4

3)

Multi
-
protocol Extensions for BGP
-
4

4)

OSPF

5)

RIP

6)

RIPv2

7)

IS
-
IS

8)

Virtual Router or Virtual Routing Forwarding support.
(
Contractor

shall

state the
maximum number of Virtual Routers or Virtual Routing Forwarding supported.
)


9)

Load balancing function
(
Static Ro
uting, all IGP

and
BGP
)


10)

Both 2 Byte and 4Byte ASN support for BGP



1.5

MPL
S

Features

The routers
shall support
the
following functions and conditions to provide
the
following MPLS(Multi Protocol Label Switching)
-

based service

1)

basic MPLS function

(
RFC 3
031
)


2)

Fast Rerouting function

3)

BGP/MPLS VPN function (RFC 2547 bis)

4)

MPLS L2 VPN (Martini Draft)

6
-
34

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope

a)

Ethernet over MPLS

b)

Frame relay over MPLS

c)

PPP over MPLS

d)

ATM over MPLS

e)

Cisco HDLC Over MPLS (Optional)

f)

VPLS (Virtual Private LAN service) or L2VPN Pseudowire Swi
tching

g)

Layer 2
a
ny
-
to
-
any
i
nterworking

5)

All of IP service shall be implemented without performance declin
ing

in all
MPLS environment.

6)

Number of label
s

that can be serviced at LIB (Label Information Base) shall
incorporate all FEC (Forwarding Equivalence Cl
ass) created in IP environment,
and shall not affect
equipment
’s operation even when operated simultaneously
with IP environment’s FIB.

7)

Smooth
MPLS load balancing mechanism

8)

The IP/MPLS equipment

shall provide
the
following functions especially with
MPLS TE
.

a)

RFC

2702(MPLS TE), RFC 3209(RSVP TE)

b)

S
calability when setting TE.

c)

T
he function of mapping certain traffic groups to certain TE tunnel

d)

Status monitoring function by tunnel

e)

Management function(creation/deletion/shutdown) by tunnel

9)

LSP ping / traceroute
,

PE
-
PE ping

and

CE
-
PE Ping functions

10)

Policing functions by Martini Circuit

11)

Selective Label Binding function(
manual label binding for given

routes
)

12)

LSP shaping or policing function

13)

Template based flow accounting and packet sampling on MPLS and IP layer
(inc
luding IPv6) without using a dedicated service module that could become a
performance bottleneck and a single point of failure.

14)

BGP support for the standard Bidirectional Forwarding Detection

(BFD)

implementation.

Section 6
-

Employer’s Requirements

6
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35

Procurement of Plant for SASEC Information Highway Project | ADB Standard Bidding Document |Single
-
Stage: Two
-
Envelope

15)

L2TPv3 which allow customers to connect t
wo similar interfaces back
-
to
-
back
without any knowledge of the underlying IP network used to deliver their
frames.

16)

L2VPN Pseudowire Redundancy which provides the ability to recover from a
failure of the remote PE router or of the link between the PE and C
E routers
over MPLS Edge router.

17)

OSPF and IS
-
IS Incremental Shortest Path First (i
-
SPF) to allow OSPF/IS
-
IS to
converge faster on a new routing topology in reaction to a network event.


1.6


QoS

Features

An essential feature for core &
backbone router is

to support differentiated Quality
of Service (QoS) for IP packets. The system must be able to deliver IP QoS to
service providers to offer differentiated IP service
s

to their subscribers.

1)

T
raffic classification

a)

Interface (physical and logical)

b)

DSCP field


c)

TOS field

d)

IP precedence field

e)

MPLS EXP field

2)

Traffic Policing (CAR)

3)

Traffic shaping (GTS)

4)

Congestion control

:

a)

LL
Q/WFQ/CBWFQ

5)

Congestion avoidance

a)

RED/WRED

6)

DiffServ

7)

S
haping on subinterface

8)

C
lassification of match VLAN


6
-
36

Section 6
-

Employer’s Requirements

Procurement of Plant
for

SAS
EC Information Highway Project |
ADB Standard Bidding Document

|
Single
-
Stage: Two
-
Envelope


1.7
Connectivity

1)

The
connectiv
ity

of the
IP/MPLS backbone equipment
shall support Packet
over
SDH (POS)
and Gigabit
,
Fast Ethernet. Present interface requirements of
the routers are given in Annex
-
2.

2)

Both Core & Boarder Township connectivity Router
shall

support High
-
density
LAN and W
AN interfaces ranging from NxDS0 to Gigabit Ethernet for much of
MPLS VPN services.


1.8

Management and Operation Features

1)

Router
shall provide
the
following management functions.


a)

System configuration shall be possible without suspension of service.

b)

W
hen rebooting, all previous configuration values shall be automatically
restored.

c)

The main processor unit should have redundancy structure for
continuity of
service

d)

Control unit’s graceful switchover

e)

Routing protocol’s graceful restart function and inter
-
working
with different
vendor equipment

f)

Operation management shall be possible through CLI Command