nanog mailing list archives
"1 million" routes
From: Jon Lewis <jlewis () lewis org>
Date: Tue, 5 Feb 2008 15:07:16 -0500 (EST)
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_________
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