RFC2547 VPN discussion group? (With an inter-AS VPN question )

Robert Raszuk raszuk at cisco.com
Tue May 22 07:04:21 UTC 2001


Hi Yu,

Quite a few mpls operational quiestions is being discussed on mpls-ops
alias. 

For cisco specific I have created closed alias mpls-deployment at cisco.com
Please use the last one for escalation issues with mpls. Reg your issue
without further troubleshooting I am unable to help you so pls open a
TAC case. 

R.

> Yu Ning wrote:
> 
> Hi All,
> 
> Does anyone know RFC2547 VPN discussion group ? I can only find generic MPLS
> discussion from IETF. Better cisco oriented, because we use Cisco RFC2547
> solution.
> 
> Here is one of the problem we encountered now. Can anyone help ?
> 
> We have 3 PEs connected with 3 CEs. PE1, PE2 are in the same AS4134, while
> PE3 in AS41340.  It's not so luck that PE1 and PE3 is not back-to-back
> connected, but can be reached via a tag-switching enabled intermediate
> network. PE1-PE2 has MP-iBGP peer, while PE1-PE3 has MP-eBGP peer.
> 
> Then we verify the traffic, and see that CE3, CE1 can ping each other,
> while CE3 can't ping CE2 ? But all three CEs can see prefix from other
> CEs.
> 
>    AS4134                                      AS41340
> 
> |----|       |---|                    |---|
> |CE1 |-------|PE1|--(Tag switching )--|PE3|
> |----|       |---|    enabled inter-  |---|
>                |      mediate network   |
>                |                        |
>                |                      |---|
>                |                      |CE3|
> |----|       |---|                    |---|
> |CE2 |-------|PE2|
> |----|       |---|
> 
> BTW, We run PE on IOS Version 12.1(5)T6
> 
> regards,
> 
> Yu Ning
> ____________________________________________
> 
> (Mr.) Yu Ning, Chief Engineer
> ChinaNET(AS4134) Sr. Sup.& New Sev. R&D
> Internet Product Dep. DCB, China Telecom
> Beijing, P.R.China +86-10-62072357/62072354
> ____________________________________________




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