Tag: csm

CSCtd31622 – CSM, Cookies, and the year 2010

It seems that we have another piece of evidence that Cisco doesn’t like the CSM.  From what I’m able to creatively interpret, the software developers didn’t think anyone would be running the CSM for very long, so they set a…

CSM Probe Status of ???

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

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 server suddenly commits ritual…

Configuring Dedicated Trunks for the CSM

Did you catch the article on setting up fault tolerance on the CSM?  In that article, I mentioned that Cisco recommends a dedicated trunk for the FT VLAN if you have two HA CSMs in two chassis.  Discuss amongst yourselves…

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…

Configuring Fault Tolerance on the CSM

Like (nearly) everything in the Cisco world, you can set up your CSM to fail over to another module when the primary dies a horrible death.  You can have two in the same chassis or even have them in separate…