That’s nothing compared to this. NetworkWorld has an article by John Cox about the [tag]NFL[/tag]’s Game Day Frequency Coordinators who make sure that everyone at the Super Bowl can use their [tag]wireless[/tag] devices without stepping on toes. Imagine coordinating 2,000 different frequencies for use by everyone from the cleaning crew to the Air Force.
Aaron's Worthless Words
It's possible that someone somewhere needs to know this.
Let’s talk [tag]audit[/tag]ing for a bit. It’s important to have an outside person look over your [tag]configuration[/tag]s every so often to be sure you didn’t do something stupid, so, every quarter or so (mostly so), I bring in someone to…wait a minute. It would cost about $3000 for someone to do that, and the company […]
Let’s set up a scenario. You have a single [tag]router[/tag] that terminates your T1 to the Internet for your company. You serve your own website and email, but you’d like to be as secure as possible and use ACLs on the router to lock stuff down. Your router has two interfaces — S0/0 for the […]
Have you even looked at the first few lines of your [tag]Cisco[/tag] [tag]switch[/tag] or [tag]router[/tag] [tag]config[/tag] and wondered what those “service” lines were? Yeah, me, too, so I did a little research through the web and through some audit tools to figure a few out. Here’s some to pay attention to the next time you’re […]
We all have limited budgets these days. Long gone are the days of unlimited resources and uncontrollable expansion of the network, so it’s important that any network dude or dudette pay attention to the open-source world. Below is a list of stuff I use at the office and at home to monitor, trend, and alert […]
I assume you take every word I say to heart and that you’ve been using Dynamips/Dynagen for a few days now, right? Good. That’s a start, but let’s break down a simple lab to make sure everyone’s on the same page. I run my labs on Linux most of the time, so you’ll see my […]
I’ve run across articles for these apps a thousand times, so I thought I’d get in on the action. Dynamips and dynagen are a pair of apps that make simulating Cisco routers very easy. I use them constantly at the office (and even at home on the couch) to try out new configs and even […]
I had an article a few weeks ago about the Cisco CSM, which is a load-balancer module for the 6500 series switches. This thing is a pretty good device, but monitoring the connections to each VIP and RIP is not very straightforward. If you have an SNMP monitoring system like Cacti or MRTG, you need […]
We’ve done some tracking with HSRP in other articles, but there are lots and lots of ways to use object tracking on an HSRP device. In our example network, we tracked the interface, and, if it went down, we decremented the standby priority. What if just the line protocol goes down? How about if the […]
I like [tag]layer-3[/tag] [tag]switch[/tag]es. They give some great flexibility and bang-for-the buck, but most people overlook one issue with these things that can cause security problems. Most people configure the [tag]VLAN[/tag]s, put an IP on the VLAN interfaces, and put it in production, but the packets don’t actually flow the way they think they do. […]