Deaggregation factor jump (Re: Weekly Routing Table Report)

Sun Feb 24 17:46:09 UTC 2008

On Fri, 22 Feb 2008, Justin Shore wrote:

> Cox has jumped about 2k in the past month for me.  If I could ever figure out 
> what the OIDs are for BGP peers I would graph it.

Probably not the safest way to go about it. Might work out ok, but 
with the dramatic potential to blow something up, especially on a router 
with a full table. The bgp mib doesn't contain an object to tell you, 
summarized, how many prefixes a peer is sending. You would have to iterate 
the full routing table and pick out routes that originate from a specific 
AS. And then repeat it periodically to generate your time series.

You'd be better off parsing output from a zebra peer. Slightly hackish but 
far safer, and efficient.

- billn