Just a quick shout out …. So one of the things that is some times talked about is the problem of the “non heterogeneous” or homogenous networking environment. The illusion that choosing the market dominant product (because everyone else buys it) is the right thing to do …. Anyhow it seems that Cisco is in a bit of bother due to its some what hated buggy protocol CDP. If your a cisco nerd and haven’t caught up on this it might be time to do a bit of serious patching!
Have a look at this wired article
Cisco Flaws Put Millions of Workplace Devices at Risk
And also the Reg have something about it
Tens of millions of Cisco devices vulnerable to CDPwn flaws: Network segmentation blown apart by security bugs
Stay safe on the Interwebs!