Route table growth and hardware limits...talk to the filter

Sat Sep 22 13:23:11 UTC 2007

On Sat, 22 Sep 2007, Pekka Savola wrote:

> Our perceptions differ -- you seem to think that the having full, unfiltered 
> BGP feed protects from these problems.  That's not the case.  E.g., in the 
> TeliaSonera routing problem I sent on the m-l on Sep 6, all prefixes were 
> received fine through TSIC, but certain traffic ended up being dropped for 
> the duration of about 9 hours.

Has everyone forgotten the "Tier 1 depeerings" of several years ago?  i.e. 
If you were pointing default at C&W, PSINet, Cogent, or Level3 when they 
each had or caused depeering issues, parts of the internet ceased to be 
reachable.  In such cases, having full routes from multiple providers was 
the only way to be automatically protected from such games.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________