cisco 3550 SMI with EMI upgrade

aueddonline

simple question, what's the difference between a EMI 3550 and a 3550 SMI with a EMI image.

is it just that one the first was born a EMI and the second has had the IOS version changed?

cheers guys and girls

mikej412

aueddonline wrote:

the first was born a EMI and the second has had the IOS version changed?

That's basically it.

I think a show version will identify the switch as an original EMI or SMI

dtlokee

A show platform asic seems to indicate the EMI has more ASICs in it than the SMI, enhancing the performance of the device but for a lab who cares

aueddonline

cool, there's quite a few of the upgrade one's about, is there anymore features on the 3560's or is it as down to the IOS again

dtlokee

aueddonline wrote:

cool, there's quite a few of the upgrade one's about, is there anymore features on the 3560's or is it as down to the IOS again

The 3560 has a few new featurs over the 3550, IPv6, Private VLANS, and the QoS Scheme is different using SRR instead of WRR. Then there's some annoying things like not being able to attach a policy map outbound on an interface, grr.

JohnDouglas

I think the tiering (eg fast-ethernet tiered at 40meg) is different on 3560s too. Not so flexible as a 3550. Also you can only set it ingress or egress. Minor point for a lab though. Bit more of a problem with customer contracts though when you find you can't tier to a level that was sold to the customer.