MPLS Packet Loss

[gilanx2010]

Hi,

I have an issue problem on one PE (PE-3), if I doing test from the neighbor or another PE to PE-3 using "ping mpls pseudowire <loopback PE-3> <VCID>"  and ping using vrf to PE-3 there is many packet loss, but ping test to loopback PE-3 is normal no packet loss.

anyone ever had an experience like this?

PE-1#ping mpls pseudowire xxx.xxx.xxx.130 10001 repeat 1000

Type escape sequence to abort.

!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!

.!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!

!.!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.!!!

!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!

!!!!!!!!!!!!!!

Success rate is 94 percent (278/295), round-trip min/avg/max = 1/3/48 ms

PE-2#ping vrf TEST 192.168.9.2 repeat 1000

Type escape sequence to abort.

Sending 1000, 100-byte ICMP Echos to 192.168.9.2, timeout is 2 seconds:

!!!!!!!!!!!.!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!

!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!

.!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!!.!!!!!!!!!!!!!.!

!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!

.

Success rate is 92 percent (260/281), round-trip min/avg/max = 1/2/16 ms

Ping to loopback PE-3

PE-2#ping xxx.xxx.xxx.130 repeat 1000

Type escape sequence to abort.

Sending 1000, 100-byte ICMP Echos to xxx.xxx.xxx.130, timeout is 2 seconds:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!

Success rate is 100 percent (1000/1000), round-trip min/avg/max = 1/2/100 ms

PE-1#ping xxx.xxx.xxx.130 repeat 1000

Type escape sequence to abort.

Sending 1000, 100-byte ICMP Echos to xxx.xxx.xxx.130, timeout is 2 seconds:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!

Success rate is 100 percent (1000/1000), round-trip min/avg/max = 1/2/52 ms

Diagram

-------------

PE-3(Problem) ----------------------- PE-1 (Test using xconnect)

     |                                                 |

     |                                                 |

     |                                                 | 

     |----------------------------------------  PE-2 (Test using vrf) 

Thanks

Gilang.

[Nagendra Kumar Nainar]

Hi Gilang,

From description and diagram, Am I assuming right that 192.168.9.2 is configured on PE-2?. if so, I think the comparision should be between L2VC ping and ICMP ping to x.x.x.130.

Can you share the configuration from PE-1?. Do you have any CoPP or QoS enabled?. L2VC ping is not ICMP based and uses 127.x.x.x address as destination. So they are a bit different with L3 details in header (though it is a ping to same address).

-Nagendra

[tarik sayel]

Hello Gilang,

I don't know if you have solved the issue or not, cause i have the same problem between two PE, i have 6 VRF, and the problem occurred just for one, I do not know where the problem is ?

Thanks for your help

[gilanx2010]

Hi All,

Problem has been solved, but there's no change configuration on the router, circuit normal by itself.

Regards,

Gilang Rivai Daryatmo