[c-nsp] ME3600 BFD flapping

[Vitkovský Adam]

Hi Jure,

35 is a lot of BFD sessions and on ME3600X BFD is handled by CPU.

You can check the CPU queues BFD uses queue 1: 
Take these two or three times in a row: 
show platform aspdma all_counters 0 
or 
show platform aspdma all_counters 1 
and 
show platform qos policer cpu 1 0 

Then you can check for BGD drops: 
show bfd drops 

Or you can check if there are some interface discard counters incrementing:
show interfaces counters errors


Oh and in order to take the above cmds you might need to enable service internal
conf t
 service internal
exit


adam

> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> jure brkljacic
> Sent: Tuesday, August 26, 2014 1:50 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] ME3600 BFD flapping
> 
> Hi,
> 
> We have a huge problems with BFD flapping on ME3600.It`s random event on
> two 3600 connected to the "same" end system.
> 
> a.) First we thought that interface output drops causing BFD flapping.Than
> we configure a
>      a output queue policy to eliminate interface output drops. BFD flapping
> still there :(
> 
> Code running:me360x-universalk9-mz.153-3.S3
> Number of BFD sessions: ~35
> timers:150 multiplier 3
> CPU:~10%
> 
> Any help will be greatly appreciated.
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