we're looking for top of the rack switches in the data center. These will be for server connectivity. Stacking features of 3750e look pretty appealing as far as management goes. Would there be significant performence gain by going with 4948s? any one out there running 3750E's in the DC? Do you see output queue drops on these?? thoughts???
A comment on the second reference. That thread is mainly about the 4900M, which is a very powerful box in a small package. Big jump up in performance from 4948s, although perfect if you're going to work with 10 gig connections. Personally, I think the 4900M could make for an interesting 10 gig core or distribtion switch/router.
On the face of the PPS and fabric bandwidth specs, the 4948(10-GE) and 3750-E (and 3560-E) series should perform alike as individual devices. The 3750-E stack is limited by its stack cable's bandwidth, compared to something like a 6500/sup720, but assuming most traffic is to/from uplinks, its stack bandwidth compares, not too badly, with something like a 6500/sup32.
Besides the feature of dealing with a 3750-E as one logical device, it supports, I believe, cross stack member 10 gig Etherchannel. With the 3750-E stack, you also have the option for higher port density local (stack) L2 or even L3 vs 4948-10GE.
Not too long ago, I was involved with a data center upgrade where 3750-E stacks were selected for server rows. They haven't been installed yet, so can't report how well they work, but will say, same upgrade also installed mixed 3750G/3750-E stacks for user closets, and they have performed well.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
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