[102346] in North American Network Operators' Group
"1 million" routes
daemon@ATHENA.MIT.EDU (Jon Lewis)
Tue Feb 5 15:42:42 2008
Date: Tue, 5 Feb 2008 15:07:16 -0500 (EST)
From: Jon Lewis <jlewis@lewis.org>
To: nanog@nanog.org
Errors-To: owner-nanog@merit.edu
On paper, the Sup720-3bxl does 1 million routes. The reality is, the
default config allows for:
L3 Forwarding Resources
FIB TCAM usage: Total Used %Used
72 bits (IPv4, MPLS, EoM) 524288 229921 44%
144 bits (IP mcast, IPv6) 262144 5 1%
So, with not quite full BGP routes, my lab sup720 is at 44% capacity for
IPv4 routes. This is tunable via "mls cef maximum-routes ..." IPv6 route
slots can be traded for 2 IPv4 slots (after a reboot).
FIB TCAM usage: Total Used %Used
72 bits (IPv4, MPLS, EoM) 770048 229899 30%
144 bits (IP mcast, IPv6) 139264 5 1%
So...how many IPv6 routes are people seeing/expecting? Are you running
with the default split, figuring if/when the time comes, you'll adjust and
reboot?
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
