[e-nsp] BD 6808 MSM 64i - High CPU tBGTask

[Mikael Abrahamsson]

On Sat, 19 Apr 2014, root net wrote:

> Hello,
>
> Does anyone remember or can shed some light on the older 6808s with MSM 64i
> w/256MB?
> BGP is running but only iBGP. There is no full routes period just internal
> networks for a grand total of 28. There is also 5 BGP peers, again all iBGP
> and only 28 networks/routes.
>
> Out side of basic BGP there are some route-maps for TE and that's about it.
> One weird thing was when ever I disabled BGP and just used static routing
> the tBGTask was still high.
>
> Issue is the switch keeps throwing packets and when you run "top" you see:
>
> Total number of tasks: 96
> Task Name       Task Id         Task PC         Status   % CPU Max % util
> ==========================================================================
>   tBGTask      8a56d3b0        80ed6f58        READY        97   98

The BG in BGTask means "background". So the device is 97-98% idle when it 
comes to CPU utilization. Whatever is making it drop packets doesn't have 
anything to do with CPU usage according to the information you've 
provided.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se