[nsp] Catalyst 3550-12T

[James Galliford]

You're right, that is the showstopper for us.  I must have dot1q
capabilities on the switch.  Why would they decide to push a device that
does not have .1q?

-----Original Message-----
From: sthaug at nethelp.no [mailto:sthaug at nethelp.no] 
Sent: Monday, May 10, 2004 3:30 PM
To: rhayden at geek.net
Cc: James Galliford; cisco-nsp at puck.nether.net
Subject: Re: [nsp] Catalyst 3550-12T


> Depending on your specific port needs, the 3750-24TS might be a better
> model for you.  More ports, faster CPU, and cheaper.  The 3750 line is

> Cisco's new flagship line with the 3550 being older (and hence earlier
to 
> retirement).
> 
> I've had good luck with 3750s.

... but the 3750 cannot do 802.1q tunneling ("QinQ"), while the 3550
can. In some circumstances, that is a showstopper.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no

> 
> On Mon, 10 May 2004 sthaug at nethelp.no wrote:
> 
> > > I'm considering the purchase of a Cisco 3550-12T for a medium 
> > > sized PoP. Could someone lend a review of the 3550 series switches

> > > with regards to reliability, ease of use, etc.
> > 
> > We have no direct experience with the 3550-12T model, but have lots 
> > of experience with 3550-12G and 3550-24.
> > 
> > In general the 3550 series have worked well for us. They have some 
> > limitations, which may or may not be relevant for you:
> > 
> > - Limited size of the MAC address table.
> > - Limited number of simultaneous VLANs (1024).
> > - For L3: Limited number of SVIs, limited size of the routing table.
> > 
> > (It was a great disappointment to us that the 3750 Metro, which is 
> > more related to the 3550 than to the rest ofthe 3750 series, didn't 
> > improve on the size of the MAC address table or the number of 
> > simultaneous VLANs.)
> > 
> > Ease of use: If you're familiar with IOS, you'll find the 3550s 
> > mostly like any other Cisco router, and pretty easy to use.
> > 
> > Reliability: We've had few 3550-24 DC switches which have been DOA. 
> > Not relevant for you, since there is no DC model of the 3550-12T. 
> > Aside from that, no significant problems.
> > 
> > Steinar Haug, Nethelp consulting, sthaug at nethelp.no 
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> > 
>