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Thanks to Bob Harper for his follow-up emails concerning my CMUG presentation on vPC, FEX, and Datacenter Virtualization. If you haven’t read the presentation, it can be found at  Follow-Up [...]

Here is my list of the top ten security mistakes that IT staff makes.  These mistakes leave your network vulnerable to attack and compromise. Mistake #5:  Caching Windows Credentials.

I recently noticed that Cisco has a tool for converting IOS configurations to NX-OS configurations. The tool is called "IOS-NXOS Migration Tool", it is located here: https://tools.cisco.com/nxmt/My quick review follows.

Brief Background I have built custom corporate directories before using the

In this CMUG session I primarily discussed datacenter access layer virtualization. The content drew slides from several CiscoLive 2011 presentations, accompanied by some slides of my own. The intent was [...]

I recently prepared a vPC Best Practices Checklist, a list I and a consulting customer could use as a vPC configuration planning / review checklist. The information is a mix [...]

I’ve been writing blogs for nojitter.com for the past several months. I thought that links from here would be useful so that anyone following my blog posts can find them [...]

When searching for phones in CUCM by specifying a filter on Device Pool, the CUCM returned the following error: Error occurred during find. java.sql.SQLException: A syntax error has occurred. Having [...]

I got in some lab time working with vPC+ last week. I was teaching the week-long Nexus class DCUFI in Indianapolis. I teach it about once a month via FireFly [...]

I've recently seen several Cisco Support Community posts about Cisco Unified Attendant Console (CUxAC) and at least a couple of them are related to instances where BLF does not work as expected.  I have also encountered this issue and thought I'd share my experience.

Background I recently completed a CUCM upgrade for a customer where their CUCM 7.0 system, running on the MCS platform was migrated to an 8.5 system running in vmware (on [...]

Why am I writing this? I have been using and testing submitted version 2.0.1 to Apple (1/24/2012) for release in the App Store. Version 2.0.1 is going to include improvements [...]