Hello All,
Lab 4 is about Inter-AS MPLS VPN (option C).
All PEs and CEs can ping each other's VRF aware loopbacks
R6, R7, R8 are CE's in vrf FOO (AS3000)
R6 multihomed to two PEs in AS2000 - R1 and R4.
R7 and R8 connected using IGP (EIGRP) backdoor. Each one of them is connected to XR2 (PE in AS1000).
R1-R8 have joined 239.0.0.1 - 239.0.0.8 respectively in there vrf aware loopback interface. MDT is up and running, yet multicast ping between the CE's does not work well. sometimes it needs 4 requests to get ICMP reply, some times it takes only 1, and sometimes it just works.
For example, in order that R6 (Lo0 172.16.0.6) can reach group 239.0.0.7 or 239.0.0.8 I need to ping first the other loopbacks of the PEs, to build the tree.
R6#ping 239.0.0.8
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.8, timeout is 2 seconds:
.
R6#ping 239.0.0.7
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.7, timeout is 2 seconds:
.
R6#ping 239.0.0.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.1, timeout is 2 seconds:
Reply to request 0 from 172.16.0.1, 12 ms
Reply to request 0 from 172.16.0.1, 32 ms
Reply to request 0 from 172.16.0.1, 32 ms
R6#ping 239.0.0.3
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.3, timeout is 2 seconds:
Reply to request 0 from 172.16.0.3, 20 ms
Reply to request 0 from 172.16.0.3, 20 ms
Reply to request 0 from 172.16.0.3, 20 ms
R6#ping 239.0.0.5
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.5, timeout is 2 seconds:
Reply to request 0 from 172.16.0.5, 24 ms
Reply to request 0 from 172.16.0.5, 24 ms
Reply to request 0 from 172.16.0.5, 24 ms
R6#ping 239.0.0.7
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.7, timeout is 2 seconds:
Reply to request 0 from 172.16.0.7, 8 ms
R6#ping 239.0.0.8
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.0.0.8, timeout is 2 seconds:
Reply to request 0 from 172.16.0.8, 20 ms
How can I debug this?