Philippe Guibert a9179f571d bfd-bgp-cbit-topo3: add bfd bgp cbit topotest test ...

this test simulates the case where r1 keeps staled entries of r2,
because r2 is a 'non stop forwarding' device. For instance, r2 restarts
to be upgraded, then r1 keeps the entries, thus avoiding to flush
entries in the dataplane. Here, BFD is used, and the bgp
check-control-plane-failure command is used to inform BGP that if BFD
goes down, this may be because remote peer is restarting, and this may
be necessary to keep the entries of remote.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>

2019-05-14 16:49:49 +02:00

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