AS-Override in MPLS L3VPN can't ping

[plawansai]

My Topology:
PE1 vrf A - PE2 with as-override - PE1 vrf B - PE3 vrf B - CE destination

I see the route can install in the routing table but I can't ping, how should I do?

Thank you very much.

[paramount]

Hi,

Assume you are trying to ping a destination learnt via the BGP peering. Are you pinging from a source address that is known about at the destination?

If so, can you share some output here please, ie show router xxx route-table, show router xxx interface, ping router xxx source yyyy

Paramount

[plawansai]

Hi,

PE3# ping router 31010351 10.12.75.254
5 packets transmitted, 5 packets received, 0.00% packet loss

PE2# pin vrf fK7 10.12.75.254
Success rate is 100 percent (5/5), round-trip min/avg/max = 45/476/1163 ms

PE1# show router 31010077 route-table 10.12.75.254

Code: Select all

===============================================================================
Dest Prefix[Flags]                            Type    Proto     Age        Pref
      Next Hop[Interface Name]                                    Metric   
-------------------------------------------------------------------------------
10.12.72.0/22                                 Remote  BGP       00h05m59s  170
       10.202.124.86                                                0
-------------------------------------------------------------------------------

PE1# show router 31010077 interface

Code: Select all

===============================================================================
Interface-Name                   Adm         Opr(v4/v6)  Mode    Port/SapId
   IP-Address                                                    PfxState
-------------------------------------------------------------------------------
Intf_PCW.2092            Up          Up/Down     VPRN    1/1/3:2092
   10.202.124.85/30                                              n/a
-------------------------------------------------------------------------------

PE1# ping router 31010077 10.12.75.254 source 10.202.124.85
5 packets transmitted, 0 packets received, 100% packet loss

Thank you very much.

[paramount]

Hi,

But at the far end, ie at the device with 10.12.75.254, does it have a valid route back to 10.202.124.85?

Can you try a traceroute and see how far it gets also.

Cheers
Paramount

[plawansai]

CE# sho ip rou
S* 0.0.0.0/0 [1/0] via 10.202.116.49

CE# tra 10.202.124.85
Type escape sequence to abort.
Tracing the route to 10.202.124.85
VRF info: (vrf in name/id, vrf out name/id)
1 10.202.116.49 !N !N !N

Thank you very much.