PROJECT SANET II

homuskratNetworking and Communications

Nov 20, 2013 (3 years and 4 months ago)

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PROJECT SANET II

Pavol Horváth, Marian Ďurkovič, Tibor Weis

SANET

Slovak Academic Network Association

horvath
@sanet.sk,
md@bts.sk
, tibor
@pobox.sk


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PROJE
C
KT SANET II


Goals of the project



Adopted by Slovak Government in May 2001


Finance plan for 2001
-

2002: 5.5 mil.EUR


Build up a new country wide optical infrastructure


Connecting all Slovak universities other academic sites


Build up MANs in the 8 main regional centres


International connection to GEANT Network


Upgrade connectivity to INTERNET


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Or
ganisation of the project



All decisions are made by Project Steering Committee
reported direct to minister of education of the SR


We have received a world price for leased FO for the
regional infrastructure


The Tender was open for alll suppliers for


Leased Dark fibber lines ( one pair for the long
distance)


To sell a free duck


To build up the FO lines for SANET mainly in the
MAN


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Basic Technology



Fibre optic infrastructure only


Technology switched Ethernet


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Current situation



First 550 km optical infrastructure
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1Gbps

network
Bratislava
-

Košice
( a main part of Slovak backbone

is
working )


The next 400 km is finalized ( in the next 2
-
3 months)


12 km MAN in Bratislave in the SANET ownership
with the
1Gbps MAN



The same situation in the Cities Nitra, Kosice


In the next 2 month will be finalized 1Gbps MAN
network in the other 5 main Cities in the Slovakia


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Project follow up in the 2003


Finalization all steps of the country wide optical
infrastructure


The 10 Gbps switched Ethernet on the MAN in
Bratislava and also in the part of backbone
infrastructure was tested


Upgrade of international capacity to 355 Mbps


The new Multimedia application and services


IP telephony


IP video
-

real video from SATELITE ASTRA


SW free (www.videolan.org)


Teleconferences

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SANETII network throughput
measurement



SANET2 network throughput measurement was done from
16 to 31 July 2002 during full production operation


we did not use any special part of SANET2 network for
testing


The distance between Zvolen and Bratislava is 265km.


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The main goal of our measurement was:



To verify real capacity of SANET II network


To find out error rate during high volume data transfer


To check out limit of used network components



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How was measured


2

Servers Sun Fire V880 with gigabit Ethernet network
cards was used



These servers were together connected by three ways



The reason was to get comparative results>


Local interconnection through L2 switch


both


Servers were on the same IP network


Local interconnection through L3 switch


the
servers was on two different IP network


Remote interconnection through L3 switches


the
servers were in two cities connected to different IP
network


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The main goal of this measurement
was
:



To verify real capacity of SANET II network between
TU Zvolen and STU Bratislava


To check out the influence of 3ms delay caused by
265km distance on data transfer


To check out error rate during high volume data transfer



All tests and measurements were performed during
working days when average network load measured by
Cisco IOS’s was 8%



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Summary

Following results:

1.
Using bigger TCP window, as is default set up in
Solaris9, the delay caused by distance is negligible.

2.
During high volume data transfer with average network
load above 80% the error rate is still zero.

3.
Network technology


switched gigabit Ethernet is
suitable also for long distance

4.
Network architecture where all backbone routers are
connected to one VLAN allows us to transfer data on
L2 level.

5.
SANET II network is able to provide with real end
-
to
-
end network capacity up to 895Mbps in real operation
to its users.