[66797] in North American Network Operators' Group
Re: Any 1U - 2U Ethernet switches that can handle 4K VLANs?
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Mon Jan 26 02:02:15 2004
Date: Mon, 26 Jan 2004 08:01:33 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@merit.edu
In-Reply-To: <024c01c3e3c9$d497b6b0$6401a8c0@alexh>
Errors-To: owner-nanog-outgoing@merit.edu
On Sun, 25 Jan 2004, Alexei Roudnev wrote:
> Of course, if they want L3 routing on every box (I do not like such idea,
> but it's possible), then 3550 (or what do they have now?) is the best
> choice.
Definately not. The 3550 is an overpriced outdated product with moderate
performance with way too small table sizes. For instance:
The Summit48si handles 128k MAC addresses. The 3550 handles something like
6-15k.
The Summit48si can do buffering when doing QoS/shaping, the 3550 does only
policing. If you want to deliver a 2meg service over ethernet to a
customer, this is a big issue.
There is only one product in the 3550 line that is pricewise worth getting
is the 3550-12G if you need to do L2 gig aggregation to 1gig uplink and
you do not have many VLANs.
There are three issues I see where the 3550 actually has a selling point:
VRFs (even though they are too few)
Q-in-Q (limited by the small mac table size)
CEF (if you have very small routing table size and no broadcasts)
--
Mikael Abrahamsson email: swmike@swm.pp.se
