Multiservice WAN Switches

amaranthgymnophoriaElectronics - Devices

Nov 15, 2013 (3 years and 4 months ago)


Nortel Networks
Passport 7400/15000
Series for Enterprises—
Multiservice WAN Switches
Many enterprises today have multiple
disparate networks operated and man-
aged separately. A typical corporation
may include a private voice network
consisting of PBXs and key systems
networked together over private lines,
an outsourced ISDN video conferenc-
ing solution from a local service
provider, and one or more data net-
works supporting a wide range of
diverse applications. The implementa-
tion of a highly available multiservice
WAN platform provides for the inte-
gration of voice and data networks
and brings video conferencing
in-house—all at reduced costs.
Product Brief
Enterprises today are faced with doing more with less and are challenged
to find new and innovative ways to control networking costs. To reduce
costs, you are more than likely considering how to streamline network
operations and management by consolidating your voice, video, and
data traffic.
When implementing a consolidated Wide Area Network (WAN) solution,
you cannot afford to compromise mission-critical services’ availability.
Because corporate voice services are the most demanding test of a consoli-
dated network, it is important to choose a solution that offers stringent
Quality of Service (QoS) to ensure voice traffic receives the highest priority
through the network. Therefore, any changes in networking infrastructure
must support availability and reliability, while maintaining traffic priority.
To meet this challenge, Nortel Networks offers its market-leading Passport
WAN Switches to deliver the services and solutions you require.
tions through public ATM or frame
relay network services where band-
width, cost, and improved business
reach are required.
Superior voice quality
Passport 7400’s feature-rich MVP
voice services are a result of years of
telephony experience. It supports the
most popular voice signaling protocols
such as ETSI Q.SIG, NIS, CAS, Euro
ISDN, and MCDN. With MCDN on
Passport, customers can interconnect
the huge installed base of Meridian 1
networks over a converged ATM base
while preserving the rich set of value-
added telephony features. To ensure
top-quality voice, Nortel Networks
supports features such as tandem pass-
through, which eliminates unnecessary
decompression and compression cycles
for tandemed PBXs, resulting in less
delay and improved voice quality.
Nortel Networks voice capabilities not
only offer superior voice quality, they
also offer the most efficient use of
bandwidth. The Passport 7400 enter-
prise voice solution supports voice
using the ATM adaptation Layer 5
(AAL5). With AAL5, unused trunk
bandwidth can be dynamically allocat-
ed to support data traffic, giving your
network greater bandwidth efficiencies
than a reserved bandwidth scheme.
For further bandwidth savings,
Passport supports high quality voice
compression—from G.726 - ADPCM
(32/24 kbps) all the way down to
G.729 - CS-ACELP (8 kbps)—with
the ability to dynamically compress to
As an integral part of that strategy,
Nortel Networks offers the Passport
7400 and Passport 15000 series of
Multiservice WAN Switches for
corporate, government, and industry
clients looking for a high-availability,
multiservice WAN platform.
What makes Passport in
the enterprise exceptional?
The Passport products are designed to
offer reduced total cost of ownership,
superior voice quality, business-grade IP
services, high-network availability, “rock
solid” reliability, and end-to-end QoS
for companies wanting to integrate
multiple networks—making it an ideal
solution for the challenges in today’s
enterprise networking environment.
(Figure 1)
Reduced total cost
of ownership
Nortel Networks Passport Multiservice
WAN solution enables enterprises to
consolidate voice, video, and data net-
works into a single consolidated WAN
supporting a wide range of access and
trunking options—providing signifi-
cant infrastructure and operational cost
savings. With Passport, enterprises have
the choice of consolidating multiple
traffic types over private lines, public
ATM, frame relay, and even Multi-
protocol Label Switching (MPLS).
Enterprises still relying on Time
Division Multiplexing (TDM) net-
works can realize significant cost
savings as well as take advantage of
Passport’s dynamic bandwidth capa-
bilities and QoS. Passport seamlessly
incorporates reliable, private connec-
Passport 15000
Multiservice Switch
higher compression levels upon detect-
ing congestion in the network. Other
features that contribute to Passport
bandwidth efficiencies include speech
activity detection (SAD), which pre-
vents silence from being packetized
and sent across the WAN, and fax/
modem detection, which reduces
bandwidth by suppressing idle periods
between data bursts.
Nortel Networks award-winning voice
networking capability allows Passport
to interpret public branch exchange
(PBX) signaling protocols and route
individual calls directly, instead of
through a tandem PBX. The best path
between the ingress and the egress end-
points is selected on a call-by-call basis
using ATM SVCs. When a voice net-
working PBX call clears, the SVC is
torn down, freeing up bandwidth
for subsequent calls. This eliminates
tandem PBX equipment and can
greatly simplify the network topology,
providing operational cost savings.
Finally, the Passport 7400 MVP hard-
ware base is comprehensive, designed
to eliminate the need for external
equipment such as echo cancellers
and gateway converters.
Business-grade IP services
Passport also supports secure, scalable,
and reliable IP-Virtual Private Networks
(VPNs) with an architecture that offers
a cost-effective way of creating multiple,
segregated IP-VPNs in a shared envi-
ronment. Using either virtual routers
(RFC2764) or MPLS (RFC2547),
each Passport supports site-to-site IP
transport, QoS, and dynamic IP
routing protocols.
Figure 1:Passport enterprise applications
Passport 8600
Voi c e/vi deo/dat a c onver genc e
Campus edge aggr egat i on
Cal l c ent er T1 s avi ngs
VoFR—Passport 4400
Passport ATM network
Passport 15000
Passport IP-VPNs can be used for
separating traffic based on company
departments or network application.
If an enterprise operates a Passport
network today, IP-VPN capability is
achievable through a software upgrade,
requiring no change to the network
infrastructure. There is no need for
flash cutovers or Customer Premises
Equipment (CPE). Economies of scale
are achieved with the ability to sup-
port very large numbers of virtual
routes per node using the VPN
Extender Card, and non-stop service
availability is ensured through
Passport's carrier-grade IP routing
and forwarding capabilities.
Passport’s integrated RFC2474 solu-
tion provides for classification, mark-
ing, and queuing of the IP flows to the
required DiffServ treatment. (Figure 2)
IP-VPN SLAs can be established with
each VPN based on Passport’s QoS
attributes such as bandwidth required,
acceptable level of packet loss, network
transit delays, and security levels for dif-
ferent types of customer traffic. These
parameters permit customers to detail
how different types of traffic are
processed based on user, application, or
traffic type. QoS requirements for each
of these traffic types can be mapped
onto frame relay, ATM, or MPLS.
Passport IP-VPN services operate inde-
pendently of the core network trans-
port technology, which can be frame
relay, ATM, IP, or MPLS. This flexi-
bility enables customers to implement
IP-VPNs on existing infrastructures
and then migrate smoothly when
desired or as new technologies are
Maximum network
Responsible for Passport’s track record
of very high network and service
availability are intelligent, self-healing,
and self-learning networking systems.
Passport networking services have
been optimized for large enterprise
environments, delivering carrier-grade
availability. Robust traffic engineering
With Passport WAN Switches, Nortel Networks offers
you the industry's most comprehensive suite of
reliability features, including redundant equipment
protection, quick and accurate fault detection,
robust networking features, and
in-service software upgrades.
Figure 2:End-user applications linked to backbone QoS
Telnet FTP Voice Video
VC 1
VC 2
VC 3
VC 4
Telnet FTP Voice Video
capabilities ensure the network is capa-
ble of handling unpredictable events,
such as the loss of a port or link, or
sudden surges in traffic volume.
Changes in trunking and topology
configurations can be done without
affecting the existing applications.
Passport provides networking systems
optimized for both circuit-based traffic
and connectionless packet-based traffic
across a common trunk infrastructure.
Passport also aligns to the latest devel-
opment in standards, such as PNNI
and MPLS, complete with extensions
for added resiliency.
Passport 7480 Dual Shelf
Multiservice Switch
IP CoS is mapped to Layer 2 backbone QoS through multiple VCCs or MPLS LSPs
1 Packet is classified based on L2/L3/L4 policy
2 VC selection is based on IP CoS
4 IP CoS is used to determine priority at the egress point of the ATM network
“Rock solid” reliability
With Passport WAN Switches, Nortel
Networks offers you the industry's
most comprehensive suite of reliability
features, including redundant equip-
ment protection, quick and accurate
fault detection, robust networking fea-
tures, and in-service software
upgrades. As a result, Passport has a
proven track record as the industry’s
best switch for ensuring customer net-
work availability.
Passport offers high node availability
through fully redundant, “hot-swap-
pable” common equipment. In addi-
tion, a wide selection of optional line
and equipment protection redundancy
schemes are available, including 1+1
SONET APS/SDH MSP and 1:1 or
1:N redundancy for electrical function
As a major advantage, the Passport
15000 is architected to support hitless
software upgrades, which ensures user
connections remain active during the
software upgrade process—virtually
eliminating one of the key contributors
to reduced availability.
End-to-end QoS
Designed for industry-leading perfor-
mance, Passport maximizes the use of
network resources and minimizes the
impact of congestion and failures. A
sophisticated traffic management sys-
tem—Multiple Priority System
(MPS)—is used to ensure that the maxi-
mum amount of traffic is transmitted on
the link, while still ensuring that higher
priority traffic gets transmitted first dur-
ing congestion situations. It allows opti-
mization of resources, dynamically allo-
cates bandwidth, reduces traffic conges-
tion, and provides the least possible net-
work latency to guarantee service levels
for all traffic types.
Comprehensive network
Critical to any enterprise network is
comprehensive network management—
the ability to remotely manage, monitor,
and respond to issues from anywhere in
the network. Preside Multiservice Data
Manager (MDM) is an open, flexible
network management system that pro-
vides comprehensive fault management,
simplified end-to-end provisioning, and
detailed configuration management for
high-quality customer care.
With Preside Multiservice Data
Manager, enterprises view and manage
each Passport node as one of many
integrated elements within the net-
work, employ a consistent network
view with alarm notification and
display systems, activate a suite of
applications for functions such as
configuration management (provision-
ing, software distribution, software
backup, and restore), fault manage-
ment, accounting management, statistics
management, security management,
and synchronization.
Services and support
Nortel Networks comprehensive ser-
vices and support portfolio provides
enterprises with an extensive range of
coverage around the globe. Services
and support are available to assist in
all aspects of a network—from its
design to implementation and ongoing
operation. Nortel Networks has a
range of services and support options
to suit networks of all sizes and contin-
ues to evolve these services to meet
customers’ needs for responsive, high-
quality support. Nortel Networks
supports networks in more than 100
countries with worldwide support
personnel related logistical systems
engineers worldwide.
Table 1:Passport 7400/15000 technical specifications
Key technical specifications —services
ATM services
- SVCs, SPVPs, SPVCs, PVPs, and PVCs
- UNI 3.0, 3.1, 4.0 with interworking ILMI 4.0, AINI
- Point-to-multipoint (logical and spatial)
- Inverse multiplexing over ATM (IMA) n x DS-1/E1
- VPT (Virtual Path Termination)
ATM traffic management services
- CBR, VBR (rt/nrt), UBR, UBR with MDCR, GFR
ATMF service categories (TM4.1)
Shaping and UPC enhancements
- Dual leaky bucket traffic shaping (inverse UPC) and policing
- DGCRA, separate stats for GCRA1 and GCRA2 UPC violations
Congestion management
- EPD/PPD/LPD, W-RED (per connection, virtual circuits in virtual path)
- AAL5 auto detection
Advanced queuing and scheduling
- Eight quality-of-service classes per link/channel
- Per connection WFQ (weighted fair queuing) for each class
Performance monitoring
- Cell loss ratio, availability ratio, cell transfer delay
ATM networking
- SPVCs and SPVPs across UNI, IISP, and PNNI interfaces
- PNNI DBR (Domain-based re-routing) and EBR (Edge-based re-routing)
- PNNI path and connection trace
MPLS networking
- Signaling: LDP, RSVP-TE, and CR-LDP
IP services
- DiffServ-compliant IP class of service
- IP-VPN accounting
- IP filtering
- IP tunneling
- Routing protocols: OSPF, RIPv1, RIPv2, ISIS, BGP-4, MPBGP-4
Voice services - Toll-quality voice encoding, ITU-T G.711 PCM, G.726 ADPCM, or G.729 CS-ACELP
- Silence suppression, comfort noise generation, and dynamic downspeeding
- Congestion management
- 56/64 kbps clear channel fax and modem support
- ITU-T G.165 and G.168-compliant echo cancellation: ITU-T G.164 and G.165-compliant
tone detection
- ETSI QSIG, Euro ISDN,NIS,CAS and MCDN signaling protocols
Circuit Emulation services
- Private line and Digital Cross Connect (DCS) applications
- ATM CES 2.0 (AAL1)
- Structured and unstructured services channelized to DS0, n x DS-0
- Multiplex hierarchy support of DS-1/VT1.5/STS-1/OC-3 and E1/VC12/VC4/STM-1
- PVCs, CES over SVCs and SPVCs
Frame Relay services
- FR UNI and NNI (FRF.1, FRF. 2)
- ITU-T, ANSI, Frame Relay and Vendor Forum
- Frame Relay usage-based accounting and detailed statistics
- X.121 and E.164 addressing schemes
- PVCs and SVCs
- Closed user groups (CUGs), signaled per DLCI and per port
- SVC call redirection and huntgroups (FRF.4)
- FR-ATM service and network inter-working (FRF.8 and FRF.5)
- Multilink Frame Relay (MLFR) (FRF.16)
Table 2:Passport 7400/15000 Technical specifications—physical
Key technical specifications—physical
ATM UNI/NNI interfaces
- Unchannelized—DS-1/E1, IMA (nxDS1/nxE1), J2, DS-3/E3, OC-3c/STM-1, OC-12c/STM-4,
- Channelized—DS-3, STM-1
Frame Relay interfaces
- V.11, V.35, HSSI, DS-1/E1, DS-1ch/E1ch, DS-3, DS-3ch, STM-1ch
IP interfaces
- Ethernet: 10/100BaseT and Gigabit
- Packet over SONET: OC-3/STM-1, OC-12/STM-4
- Serial Interfaces: V.11, V.35, HSSI, DS1/E1, DS3/E3 and STM-1
- Optical Interfaces: OC-3/STM-1, OC-12/ STM-4, OC-48/ STM-16
- VPN Extender Card
Circuit emulation and voice interfaces
- DS-1/E1, DS-1ch/E1ch, DS-3, DS-3ch, DS-3ch TDM, DS-3,OC-3/STM-1
- Structured and unstructured
Multiservice access interface
- MSA32, any service, any channel
Packaging—Passport 7400
- Complete shelf unit dimensions (h x w x d):
445 mm x 267 mm x 559mm (17.50" x 10.50" x 22")
- Cabinet dimensions: 1969 mm x 610 mm x 693 mm (77.50" x 24" x 27.30")
Packaging—Passport 7480
- Complete shelf unit dimensions (h x w x d):
972 mm x 483 mm x 553 mm (38.25" x 19" x 21.75")
- Cabinet dimensions: 1969 mm x 610 mm x 693 mm (77.50" x 24" x 27.25")
- Seismic cabinet (NEBS Zone 4) 1970 mm x 600 mm x 790 mm (78" x 24" x 31")
- Universal Frame: 2120.50 mm x 600 mm x 600 mm (83.66" x 23.62" x 23.62")
Mounting options
- Nortel Networks supplied cabinet or standard 19" EIA/IEC rack
Electrical options
- Redundant DC and AC options available as required
Packaging—Passport 15000
Standards compliance
- Bellcore GR-1089-core, GR63-core
- Safety: CSA C22.2 no.950, EN 60950, UL1950
- EMC:EN 55022/FCC Part 15B Class A
- Seismic: up to Zone 4
- 2125 mm x 600 mm x 600 mm (h x w x d) (83.66"x 23.62"x 23.62")
- TSI/NEBS compliant
Smart cable management
Cable management guides and trays; rear cabling for power and alarms
- 48 Vdc/-60 Vdc nominal voltage
- Alarm system —Frame- and shelf-level
- Major, Minor, Power, and Fan alarms
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