09-14-2006 05:11 AM
I have two 6500 switches connected directed trough a fiber link.
I am using Ge-WAN ports, so and OSM module.
When I configure BFD with
bfd interval 50 min_rx 50 multiplier 3
Sometimes I have an down in bfd and 1ms after I have the up.
But If I configure
bfd interval 100 min_rx 100 multiplier 3
I don't have any bfd down event.
If I ping from one 6500 to another I have this
1/2/4ms latency.
Someone can help me?
09-14-2006 06:25 AM
Hi,
the observed behaviour means you have 3 consecutive dropped/missing BFD packets within a 150 ms time window. There can be many reasons why this occurs - overloaded interface, failure in the SP network, etc.
In case you need not restrict outages to less than 300 ms I would just leave the second setting in place.
Regards, Martin
09-14-2006 06:27 AM
But my network is new. I don't have any traffic on it , and the switch cpu is 1%.
And If I ping from one switch to the other one I have a max 4ms...
Why I am missing more than 150ms!
09-14-2006 10:43 AM
please give an "show bfd neigh detail" from
your configuration.
09-15-2006 03:56 AM
TAC told me this is a BUG.
BUG CSCeg23062
09-15-2006 06:12 AM
what version of IOS u have ? i asked u this because in our live network we have also some problems with bfd.
09-18-2006 12:44 PM
I am using 12.2(18)SXE5
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