nanog mailing list archives

Re: Are SW upgrades needed in MPLS core networks?


From: Randy Bush <randy () psg com>
Date: Fri, 6 Feb 2004 13:45:51 -0500 (EST)


I don't get why Juniper and Cisco trie-lookup forwarding would differ in
comparing IPv4 and IPv6; Juniper does a 8+1+1+1+1+... search until a leaf
node is found, while Cisco does 16+8+8 (or something near it but still with
3 phases); for both architetures, IPv6 longer addresses implies walking more
deeply into the tree in order to find where to route.

ahhh.  you have been watching marketing architecture presentations.

otoh, we have been using real routers.

randy


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