Hi Sunny,
> I am new to VPP and am using vpp_get_stats to check some counters on the
> interfaces.
> if I run the command, I get the following output:
> vpp version used: vpp v19.04.1-release
>
> [root@idn_upf_ntsn /]# vpp_get_stats dump if/names if/drops$
> [0]: local0 /if/names
> [1]: host-eth /if/names
> [2]: tunnel0 /if/names
> [0 @ 0]: 0 packets /if/drops
> [1 @ 0]: 0 packets /if/drops
> [2 @ 0]: 0 packets /if/drops
> [0 @ 1]: 0 packets /if/drops
> [1 @ 1]: 19614 packets /if/drops
> [2 @ 1]: 0 packets /if/drops
> [0 @ 2]: 0 packets /if/drops
> [1 @ 2]: 0 packets /if/drops
> [2 @ 2]: 0 packets /if/drops
> [0 @ 3]: 0 packets /if/drops
> [1 @ 3]: 0 packets /if/drops
> [2 @ 3]: 0 packets /if/drops
>
> As you can see that there are 3 software interface Ids. but the second number
> after character "@"
> what does it denote? Many thanks for your help in advance.
The second number is the worker index.
The interface counters are arranged as a two dimensional array in shared
memory. First dimension is thread_index second is sw_if_index.
vpp_get_stats was something I wrote as an example application for the C stats
library.
There are various integrations using the stats API that might be of interest.
vpptop was pretty cool as a standalone application. Not sure if it's well
maintained.
https://github.com/PantheonTechnologies/vpptop
Best regards,
Ole
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