Cisco

OSPF Notes - Neighbor States

2011-06-02 ·2 min read

My prediction about covering network types was wrong. I’m going to puke out some information about neighbor states for now. As is always the case, corrections are welcome. Down : No hellos have …

350-001 ccie cisco dbd hello lsa lsack lsr lsu message ospf type written

OSPF Notes - Message Types

2011-06-01 ·2 min read

I have had my nose deep in several books in preparation for my CCIE R&S written exam, so I haven’t been blogging much at all. Now that I’ve made it to the more familiar topics, …

350-001 ccie cisco dbd hello lsa lsack lsr lsu message ospf type written

Home-grown IOU Scripts

2011-05-16 ·6 min read

I’m sure you’ve all heard of Cisco IOU by now, and I’m finally catching up with the other bloggers of the world by mentioning it. It’s an executable version of an IOS image …

bash cisco emulator iou lab script

Cisco Live 2011 Schedule

2011-04-29 ·2 min read

For the first time ever, I’m headed to Cisco Live - the big Cisco users conference in Las Vegas! I usually don’t go to these things since I wind up just hanging out by myself, but …

2011 cisco cllv11 conference las las-vegas live users vegas

Stubby Post - Final Tally of 3750 Failures

2011-03-18 ·1 min read

It’s pretty widely known that I hate Cisco 3750 switches. We’ve had so many hardware and software failures with them that I’ve got a seriously bad taste in my mouth. Since I’m …

3750 cisco fail failure rate rma statistics tac

Stubby Post - Cisco IOS Petition

2011-02-11 ·1 min read

Greg Ferro has brought back the petition for Cisco to provide an emulator to the community for learning. Since our current and only family of emulators is well on Garcinia Mangostana its way to …

cisco ios petition

Stubby Post - Changing the Prompt on the ASA

2011-01-20 ·2 min read

RichardF commented on an article I wrote last November and mentioned the prompt command in the ASA. I never set aside any time to research it, but I finally took the time today while waiting for a …

active asa cisco context domain failover hostname primary priority prompt secondary standby state

Stubby Post - Null VTP Domain Scare

2011-01-05 ·2 min read

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 …

cisco domain dtp mode null vtp

Another Blow to Dynamips/Dynagen/GNS3

2010-11-30 ·2 min read

It looks like Cisco is trying to crack down on illegal distribution of their software. I can’t really blame them since it’s their property.

cisco dynagen dynamips emulator gns3 ios license

Configuring an Active/Passive ASA Pair

2010-11-20 ·4 min read

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 …

asa cisco failover pix