[AusNOG] powerful routers in core/edge routing/switching

Lincoln Dale ltd at aristanetworks.com
Tue Feb 12 16:54:29 EST 2013


If you really want a "router" platform capable of holding a full routing
table with all the bells & whistles, be prepared to pay "router port"
prices from the usual players.

It may well be you can achieve what you want using a "layer 3 switch" which
has the same kind of hardware-based FIB (TCAM, m-trie etc), RIB in software
but not necessarily capable of holding a full internet routing table.

But I'd seriously be considering *why* you need to hold a full internet
routing table.
Its certainly nice-to-have but often entirely unnecessary providing the
tables are "big enough" to handle your internal prefixes + whatever peering
you do + some growth.

If you have that option you potentially get by with something between
1/100th and 1/10th the price point, similar metrics for power/heat.
Adds a modern twist to "switch where you can, route where you must."


cheers,

lincoln.
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