My recommendation for core switches are HP 5800-24G (JC100A). They replaced our 5500G's and 4800G's.
We have 4 running. They each have 4x10GBE onboard and expansion chambers that take another 4x10GB modules each .
They come as either copper or SFP - so we have 2x copper and 2x SFP switches, connected by redundant 20GBE links with a 20GBE link to the blade chassis.
The OP failed to say what model the Netgear Stackables were, I would be interested to find out and how they are stacked.
We use HP and Netgear and if configured correctly the Netgears will do most of what the HP will for a lot less.
However you always get what you pay for in the switch game you have to put everything in the pot including licenses SFP's and warranties then do a cost per port to really appreciate what youre getting for your money.
We too use a 5412zl. It seems HP have almost cornered this market!
5406zl for us, lovely bit of kit :)
I'm in a similar position to the OP. I've been wondering why the 5406 and 5412 switches are more popular than stacked switches? I'm thinking that a stacked core would give us better redundancy than a chassis. I'm a bit worried about having a single management module and chassis as a single point of failure. I hope I don't sound like i'm second guessing anyone else's choices, I'm just trying to figure out what's best for my school.
How do people find the 54xx series in terms of reliability?
Ours have been solid. With redundant PSUs and any array of modules and connection types it seems a far better choice than having to buy another switch. However module prices with some people are just silly, it often works out cheaper in the long run to try and guesstimate what you'll need in the future and getting those modules as part of a chassis deal. If you don't use them you'll easily get the money back selling the modules on :) It's easy enough to swap out a failed switch in a stack but depending on what that switch is connecting to then it's still not much better than losing a chassis. HP are damn good with warranty stuff. DAMN good.
We run a x2 8212zl and a number of 5406/5412 all with premium licenses. multiple 10Gig links to the 5412's :cool: and 4x 1Gb links to the 5406's.
All have been solid as a rock and would happily buy this kit again.
Added bonus of this setup is that all modules are interchangeable across the 3 models of switch and all run the same firmware code
and for the people comparing this kit to netgear, all i have to say is warranty.
I only wish we could find the money to replace a 2810-24G that we're using as our core switch..
Isn't even capable of routing vlans =(
If your on a tight budget check out the Junipers, they are reliable, robust, expandable and really built very well. We use the EX2200's here bearing in mind I come from a Nortel background the Junipers are very different. They are great to work with, either through CLI or Web Interface.
I'll attach screenshots of the web gui because i think it's fantastic.
Attachment 15056Attachment 15057
I believe the Juniper EX2200's are fairly cheap - prices will have changed since we bought ours 8 months ago but still might be worth checking out, there is also some other people on here using Juniper.
Juniper EX4500 or Cisco Catalyst 3750 both seem to be good core switches and they are stackable.