Cisco (or any other router vendor) could certainly do us a favor by
implementing SNMP objects for the following in their
enterprise-specific MIBs:
total number of paths in the RIB
per-neighbor number of paths in the RIB
Then it would be very easy to write tools that look at these, either
MRTG-like (useful to follow long-term trends in the number of routes
seem per BGP neighbor), or threshold-monitoring ones.
If people (other than me :-) start using these, then that would be a
good case for inclusion in future versions of the BGP MIB. Note that
the BGP MIB is currently being revised, and there are several
Internet-Drafts up for comments, so this would be a good time to try
to get things like this in.
Maybe the SNMP-purists' opinion is that these objects aren't necessary
because they can be derived from existing tables, but as other people
have stated, counting entries in large tables is resource-intensive.
And the mechanisms that would make these operations tractable (such as
DISMAN agents local to routers) aren't really available yet.
-- Simon Leinen simon@babar.switch.ch SWITCH http://www.switch.ch/misc/leinen/Computers hate being anthropomorphized.
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:43 EDT