Stubby Post - UplinkFast
·3 min read
I’ve got a few switches daisy chained together with single links and have enabled UplinkFast on them. This switch is not the root bridge; F0/24 is the root port and F0/23 is a blocked alternate …
Posts
Stubby Post - Path Cost of EtherChannels
·1 min read
I was doing some STP labs tonight and found something that caught me off guard a bit. I had been meddling with some EtherChannels between a pair of 3750s earlier today, and I forgot to reset the …
SWITCH – STP Exercise #1 Solution
·4 min read
Did you guys have any trouble with the solution to the STP exercise? Let’s work through it and see what happens. I got a few responses to the solution, and everyone seems to get the same answer, …
SWITCH - STP Exercise #1
·1 min read
Here’s an STP exercise for you. Given the bridge priorities, MAC addresses, and interface types in the diagram, calculate the root bridge, root ports, designated ports, and blocked ports. You …
A Quick Intro to Google's Capirca
·4 min read
Yeled left a comment earlier this week asking if I’d seen Google’s Capirca. I’d heard of it and checked out some presentation slides on it, but I’d never actually tried it out, …
ONT - Epic WIN!
·3 min read
Two down, two to go. After much groaning and moaning, I’ve finally passed my ONT test. The path to this point has been full of road blocks and covered in potholes, but I finally managed to power …
More ASA Objects and Object-groups
·4 min read
A few years ago, I developed a Perl-based application that take a template file and pukes out standardized access rules for new hosts as they’re added to the network. This works great for making …
ONT - Epic Fail Part 2
·2 min read
I took the ONT again today. The stench of failure is upon me for a second time, and I’m beginning to think I’m not the god-like person that everyone thinks I am. I went into the test very …
ASA 8.3.1 – Smart Tunnel and NAT Changes
·5 min read
I’ll start off with a warning. I’ve been running 8.3.1 on my home 5505 for a few hours now. Not only is this not really enough time for a thorough review, it’s also not the environment to test …