[c-nsp] feasible number of routing adjacencies on a C76K

Kinczli Zoltán Zoltan.Kinczli at Synergon.hu
Thu Aug 4 05:20:55 EDT 2005


Hello,
 
   Given a network providing L3 VPN service, with C7600s running with 12.2SX as PE routers. Due to redundacy requirements dynamic PE-CE routing has to be deployed
in each VPN but since average traffic/load per VPN is rather low/small customer is tempted to terminate over hundred VPNs per PE (potentially over 300 hundred)
 
For a reason customer is fallen in love with OSPF and since 12.2(18)SXE the maximum number of OSPF processes is not hard-limited anymore but:
 
I want to push them to RIPv2 on PE-CE:
 - as the topology is very-very-very simple; just 2 CE RTRs per VPN (internal C topology is deemed to be simple as well)
 - as is it much simpler than OSPF
     --->  so the practical routing ADJ limit is higher in case of RIP
 - as it won't require a process per VPN,  just a routing context
 - as it won't bind them to one and only sw release (as of now) namely 12.2(18)SXE (which, I don't belive, is the sw train we shall use today)
 
 
Still i'm worried about the _practical_ limit of RIPv2 routing adjacencies per C76K/Sup720?
The number of RT/CEF entries per VPN is again very low, say 2-3 prefix per VPN, so the real limitig factor could be the number of routing ADJ.
 
Any experiences or thoughts about that?
 
tia,
 -zoltan

-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.9.7/60 - Release Date: 7/28/2005
 

Ez az üzenet és a hozzá kapcsolódó fájlok, tervezetek kizárólag a
Címzettnek szólnak, a bennük foglalt információk bizalmasak, melyek
titokban maradásához a Synergon Informatika Rt.-nek jogilag méltányolható
érdeke fuzodik. Amennyiben valamely hiba folytán Ön nem a címzettje ennek a
levélnek, kérjük, semmisítse meg, és értesítse az üzenet küldojét. Az
üzenet az elküldés elott vírusellenorzésen esett át, de a vírusmentességére
nincs semmilyen garancia, ezért kérjük, ellenorizze azt!

DISCLAIMER

This e-mail and any attached files are confidential and may be legally
privileged. The content of this e-mail is subject of efforts by Synergon to
maintain its confidentiality. Also this e-mail is intended for the sole use
of the individual or entity to whom it is addressed. If you are not the
addressee, and received this transmission in error please delete this
e-mail and notify its sender immediately. This e-mail message has been
checked for computer viruses but it could still be infected. Please test it
for viruses before use.




More information about the cisco-nsp mailing list