So, I purchased a couple extra routers, and a second layer3 switch from @usedciscoguy. He gave me a really good deal and I plan on purchasing a 6500 series switch from him as soon as I can afford it. Anyway.... I've spent a little bit of time working … [Read more]
Layer 2 Ethernet transport over OpenVPN
One of the things I used to deploy frequently at my previous position was transport for other ISPs and businesses. Since MPLS support is in its infancy on the Imagestream platform, and was yet to be deployed at the time, this is what I came up with. … [Read more]
Using OSPF to create unlicensed full duplex connections.
Recently one of my clients asked me to help resolve an issue at an aggregation point on their network. They had several connections that converged onto a single unlicensed link on their network, not only was the link saturated, but it had lots of … [Read more]
How does latency effect throughput?
One of the questions I get asked several times a week by my clients is as such. While most people never associate latency with the amount of data they can send across a single TCP stream, engineers need to understand this concept. Luckily, someone … [Read more]
Ciscio IOS Naming Conventions
As I started building this lab, I realized that I had to find a refresher course on the IOS naming conventions. They have gone through a number of revisions through the years, but here is a guide that should help most of you building CCNA/CCNP … [Read more]
Web Searches via Quicksilver
Everyone does a fair amount of googling these days, but any network engineer can tell you that a quick ARIN whois search can be invalueable. I know I end up there quite often. Anyway, when I got my mac a friend told me to make sure I checked out … [Read more]
