Category Archives: Switch

Nexus 7006! – Detective Jeff

A friend of mine “Jeff” was doing some investigative work trying to figure out more details on the Nexus 7009 that many of us have been talking a lot about recently due to Cisco inadvertently putting up a press release that included a photo of it and then immediately took it down. Obviously when something like that happens those interested in that stuff become curious and want to know more.

Well Jeff not only did just that and came out with a good bit of fresh info on the Nexus 7009 but he also unearthed something even more tantalizing IMHO. Most of us familiar with the Nexus line have heard various rumors and grumbling about new chassis’s coming down the pipe, often that information comes with an NDA so things aren’t always a surprise when they finally reach the light of day.

Anyway, as Jeff was digging for more info on the Nexus 7009 he stumbled across what appears to be references to the Nexus 7006. I do seem to vaguely recall something about the Nexus 7006 before, at least I recalled some talk of a Nexus chassis that was going to be much smaller. When the news broke of the Nexus 7009 I thought that was it really.

Jeff’s investigative work was very enlightening and has really taught me a thing or two now about more ways to dig for new information and products. He really dug into a MIB and pulled quite a bit of info out of it. It’s a great blog post and well worth the read. Check it out here: http://blog.fryguy.net/2011/04/04/the-nexus-7009-and-what-is-this-nexus-7006/

His research reminded me of how developers often learn new information on products and services via API’s, seems like MIB’s are a great way to discover new information for us network geeks.

Cisco Switches SMI vs. EMI

Some Cisco Catalyst switches are available with two different types of images, SMI or EMI.  You might wonder what that stands for and what the difference is.  Here you go:

SMI – Standard Multilayer Software Image

EMI – Enhanced Multilayer Software Image

The SMI feature set includes advanced QoS, rate limiting, ACLs, and basic static and Routing Information Protocol (RIP) routing functions.

The EMI provides a richer set of enterprise-class features, including advanced hardware-based IP unicast and multicast routing, policy-based routing (PBR).