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Aaron's Worthless Words

It's possible that someone somewhere needs to know this.

2011-01-17
13 3 voice

IIUC Notes – Wildcards for Destination Patterns

As always, feel free to correct anything that needs correcting or add anything that needs adding.  There is a lot more to the full definition of wildcards, but these are the basics.  Note to *nix guys:  This isn't regex as you understand it.  Yes, the use of curly braces would be nice, but we don't […]

2011-01-10
3 2 misc

Network Protocol Overhead

Here are some packet overhead numbers for a few popular protocols to help with doing bandwidth requirement calculations.

2011-01-05

Stubby Post – Null VTP Domain Scare

Remember a few weeks back when I had a bad day?  I was actually at HQ that day to do some work for a project, but that got put off due to the extenuating circumstances.  When we finally got back around to do the work, we wound up adding a switch in the data center […]

2010-12-27

DHCP ACK Error on Avaya Phones

We're an Avaya voice shop (for now if I have my way) and have Avaya systems of various sizes and shapes all around the Enterprise.  I was at one of our remote locations a few weeks back and helped the guys there replace a non-PoE switch so they could get the old power injector panel […]

2010-12-02

Tagging External Routes in EIGRP

EIGRP allows you to tag external routes.  That is, any route redistributed into EIGRP can be tagged with a numeric descriptor from 0 to 4294967295.

2010-11-19
19 4 asa

Configuring an Active/Passive ASA Pair

A buddy asked for some help on configuring a pair of ASAs in active/passive mode, and, by pure coincidence, my newest project is to set up the same.  I’ve done it many time, but it’s one of those things that you don’t really do every day (unless you’re a VAR or something).  These things always […]