[c-nsp] Ping with vrf intermittent but ping mpls normal

[nanda pradana ramadhan putra]

Hi Toth,

i've check all no counter error on the interace, i've checked again

Host A#ping mpls ipv4 x.x.x.x/32 repeat 1000 the result is smooth no packet
drop

but when i cek with this

Host A#ping  x.x.x.x repeat 1000 always have packet drop

the path is same and there is no error counting on interface

Thanks,
Nanda



On Sun, Dec 9, 2012 at 3:40 AM, Tóth András <diosbejgli at gmail.com> wrote:

> Hi Nanda,
>
> Maybe you have multiple paths between the source and destination? Like
> etherchannel or Layer-3 ECMP (route with multiple nexthops on different
> links)? That would explain this, possibly the MPLS ping and ping to
> Loopback is taking one link, while the previous ping vrf takes a different
> one and that link might have some errors on it.
>
> I'd suggest to check the following commands along the path on all possible
> physical interfaces both inbound and outbound.
> sh interface <x/y>
> sh int <x/y> counters error
> sh counters error
> sh interface <x/y> transceiver detail
> sh platform port-asic stats drop <int x/y> (this only works on the 3750)
>
> Best regards,
> Andras
>
>
>
>