Static IPv6 in G

1
Static IPv6 in GÉANT and Internet2 LSRa joint
effort by ARNES, DANTE, RedIRIS and Juniper

• TF-NGN meeting
• Budapest, 17-18 Oct 2002

2
GÉANT IPv6 deployment planactivity

• by the end of 2002
• dual-stacked routers in GÉANT
• static IPv6 routes
• part of these activities
• IPv6 land speed tests
• dynamic routing in 2003

3
Members of the team

• ARNES
• Avgust Jauk, Boštjan Lemut, Matjaž Straus
• DANTE
• Agnès Pouélé, Roberto Sabatino
• RedIRIS
• Esther Robles, David Martínez, Miguel Angel Sotos
  Rodriguez
• Juniper
• Jean-Marc Uze, technical support (Bruno De Troch)
• and many others

4
IPv6 LSRpreparation

• choosing hosts
• hardware
• 1.1/1.3GHz 2xPIII CPU, 1GB RAM
• Intel PRO/1000 XT and 82543 GE Adapter
• software
• Linux (2.4 kernel)
• iperf v1.62, wu-ftpd-2.6.2-/pure-ftpd-1.0.12-1,
  ncftp-3.1.3-4.ipv6.2
• TCP stack parameters
• RAM disks
• Juniper routers
• JUNOS 5.3R2.4 and 5.3R3.3 tested by DANTE
• additional hardware tunnel PIC (lent by Juniper)

5
IPv6 LSRtest plan

• IPv4 performance tests
• IPv6-in-IPv4 tunnel
• with test routers
• with production routers
• native IPv6
• single stream and multiple stream
• two paths
• direct path Ljubljana Madrid
• long path via New York

6
IPv6 LSRtunnel setup
7
IPv6 LSRfirst path

• SI-AT-CH-IT-ES
• 2518 km
• 62 ms RTT
• 480/490 Mb/s

8
IPv6 LSRsecond path

• SI-AT-NY-UK-FR-CH-IT-ES
• 14.800 km
• 229 ms RTT
• 350/400 Mb/s

9
IPv6 LSRsecond path on GEANT Link Level Topology
(geant-msr-0209.pdf)
10
IPv6 LSRTCP stack

• short path
• window size estimate
• 60 ms ? 600 Mb/s ? 4.4MB
• 4MB not enough!
• 16MB used
• long path
• window size estimate
• 230 ms ? 600 Mb/s ? 17MB
• 16MB and 32MB used

11
IPv6 LSRresults
test transfer rate LSR mark
IPv4 460 Mb/s -
IPv6 tunnel on test routers 430 Mb/s -
IPv6 tunnel on production routers 370 Mb/s -
IPv6 single stream 480 Mb/s 1215 Tbm/s
IPv6 multiple stream 490 Mb/s 1233 Tbm/s
IPv6 single stream via NY 350 Mb/s 5154 Tbm/s
IPv6 multiple stream via NY 400 Mb/s 5894 Tbm/s
12
IPv6 LSRentries in Internet2 competition

• single stream on first path - 1215 Tbm/s
• accepted as a new Internet2 record (04 Oct 2002)
• single and multiple stream on a longer path
  (5154/5894 Tbm/s)
• submitted on 09 Oct 2002, but not accepted yet

13
IPv6 LSRconclusion

• IPv6 forwarding in GÉANT comparable with IPv4
• no problems observed on double-stacked Juniper
  routers
• much more to be done to deploy IPv6 in the near
  future (dynamic routing, management etc)