Hi,
On 06/10/2012 05:29, Neil J. McRae wrote:
but even if they didn't have RR how do they get into a situation where a
router starts switching in software. RR is a red herring in this failure
scenario even with full mesh this failure would still have happened.
root cause is somewhere a wad of routes turned a lot of silicon into
something useless.
does anyone know what kit this was?
I had a theory that they were using switches to route with a limited
table, and accidentally pushed a full table to them.
When they say "210x normal routes"... if they normally had around 2000
routes in the FIB, 210x this would be approx a full table.
If they limited the route reflectors with a max-prefix setting, they
could end up in a situation where their routers become islands.
These are the sorts of mistakes i'd expect from a new, unexperienced ISP
- not someone the size of godaddy.
Thanks,
Dan.
