Getting pretty close to default IPv4 route maximum for 6500/7600 routers.
lukasz at bromirski.net
Tue Jun 10 17:15:54 UTC 2014
On 10 Jun 2014, at 19:04, Blake Hudson <blake at ispn.net> wrote:
> In this case, does the 512k limit of the 6500/7600 refer to the RIB or the FIB? And does it even matter since the BGP prefix table can automatically be reduced to ~300k routes?
Te 512k limit refers to FIB in the B/C (base) versions of 6500/7600
Supervisors and DFCs (for line cards). BXL/CXL versions have FIB for
1M IPv4 prefixes.
You can find more information here:
And yes, you’re right - no matter how many neighbors you have, the FIB
will only contain best paths, so it will be closer to 500k entries in
total rather than N times number of neighbours.
"There's no sense in being precise when | Łukasz Bromirski
you don't know what you're talking | jid:lbromirski at jabber.org
about." John von Neumann | http://lukasz.bromirski.net
More information about the NANOG