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

[Ankit Agrawal]

Lincoln,

I do need to hold the full routing table for various reasons.

Also, I have had 6500 with full routing table and have seen what happens
when routes converge so moved away from itŠneed a powerful router this time
to hold few ten of gbps of traffic with capability to manipulate BGP routes
if needed. Still need a switch which is why Brocade seems to be a good
option as you can convert the ports to be switches ports.

Ankit.

From:  Lincoln Dale <ltd at aristanetworks.com>
Date:  Tuesday, 12 February 2013 1:54 PM
To:  Ankit Agrawal <ankitagrawals at gmail.com>
Cc:  "ausnog at ausnog.net" <ausnog at ausnog.net>
Subject:  Re: [AusNOG] powerful routers in core/edge routing/switching

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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