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

["Yu Ning" <yuning () ns chinanet cn net>]

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
____________________________________________