nanog mailing list archives

Re: Are SW upgrades needed in MPLS core networks?


From: "Rubens Kuhl Jr." <rubens () email com>
Date: Fri, 6 Feb 2004 16:56:39 -0200



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.

Usually it's a good way to learn about the architecture of the
competitor's(i.e, not the company of the presenter) router; watch both of
them and you get a pretty good image of what they are.


otoh, we have been using real routers.

Those real routers have real architetures with what behaviour regarding
prefix-length ?

Rubens


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