BCMSN Notes -- STP States
·3 min read
I’ve decided to take on the CCNP certification, so I’m going to wind up with a few posts will be more my own notes than anything. :) A switch port on a 2960 comes up with a default …
Latest Posts
How Do You Know?
·3 min read
I’ve got a non-technical one for you today. If you’re paying attention to stuff around you, you’ll probably end up with a little paranoia after reading this. We’re having …
The Most Random Things Can Hurt The Network
·3 min read
This is a great one that I have to share. A couple of coworkers walk in today and ask for some help on an issue. It seems that a business unit was having latency problems with a web app, and, after …
Server NIC Aggregation to a Cisco Switch
·3 min read
Have you even noticed that your new servers all have 2 NICs on the board? At least all of them that I’ve seen in the last 3 years have. A lot of server admin actually use them in a NIC teaming …
An Interesting Problem with Multiple DCs on a Stick
·3 min read
We talked about running multiple data centers on a stick back in August, which is where you have multiple logical pairs of client and server VLANs on a single CSM for different tiers or functions. The …
CSM Probe Status of ???
·1 min read
I must be bored since I’m posting again. A colleague asked me to change the failed value of a TCP probe today. It was no big deal, but, when I looked to see the status of the change, I noticed …
Fail Actions on CSM Serverfarms
·3 min read
I’ve talked about probes and stuff on the CSM, but I never mentioned what happens to the connections to a server that fails. That is, if I’m connected to server A in a cluster and that …