Tag Archive for catalyst

Cisco Live 2013 Insights – Catalyst 3850

Cisco Live is obviously the biggest networking event of the year, and Cisco likes to use all the attention to show off some of their new gear. I must say I was impressed with the Enterprise offerings including the 6807-XL, the 6880-X, the 4451-X, and the Sup 8-E for the 4500-E. Those boxes definitely gave me a bit of a tingle when I was checking them out, but my eyes opened up when I saw the 3850. The Catalyst 3850 is the next version of the 3k line of switches and the successor to the 3750-X.

Using Probes on the CSM

There are three different ways that a CSM checks for the health of the servers — active probes, inband health checking, and inband HTTP monitoring.  Let’s talk about active probes. Active probes (or just probes) typically send traffic to one…

Using MAC Access-lists

We ran into this today, and, though I knew it existed, I never actually saw it in the wild.  I’m talking about MAC access-lists. In the example setup, we have a DMZ off of a firewall that contains a whole…

Storm Control

We run a large number of LANs all over the country that are “controlled” by the particular business unit. We manage the gear, but, since they have the money and have to pay for anything we do, they make the…