Hi Sastry,
As Alex alluded to, the ping code:
https://github.com/FDio/vpp/blob/ff2e4138cc020dea4ab0f21f1b172b28f5ed3565/src/plugins/ping/ping.c#L877
uses the FIB to perform the lookup on the destination, it does not consult the
neighbour table. The entries in the neighbour table may have contributed to the
results that you see in the FIB, depending on whether or not the interface’s
subnet matches the ARP entry.
/neale
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> on behalf of Sastry Sista via
lists.fd.io <sastry.sista=gmail....@lists.fd.io>
Date: Tuesday, 29 June 2021 at 12:13
To: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] #vpp-dev : How does the ping works from vppctl when we
have 2 entries for the same Dest Addr with different sw_if_index
Hi,
Show ip fib gives may be giving interface and we do search based
on interface on ip neighbor table?
When we have 2 entries in ip neighbor table, how does it work. This is infact a
bug which got fixed with gratuitous ARP.
Could you please let me know the code where exactly looking neighbor table.
like ip_neighbor_table()?
With Regards
Sastry
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