Mercurial for Tracking Cisco Configs

As I have been working with different routers I have squired a small repository of configuration files that I use for examples, backups, and ways of remembering the way the network was set up before a change. At the start I maintained each config as a separate file, usually containing the date (i.e. router1-071012.cfg). While… Continue reading Mercurial for Tracking Cisco Configs

Allowing UNI or protected ports on Cisco switch to reach each other using IP

When deploying Metro Ethernet service and Colocated services, best practice it to put the ports in protected mode or uni. This is to prevent customers from causing interference to each other with layer2 protocols. It also allows the user of service provider traffic filtering. The downside is without additional configuration, customer traffic to another customer… Continue reading Allowing UNI or protected ports on Cisco switch to reach each other using IP

Using reverse telnet and ssh

Sometimes I find a need to use a console cable remotely, but getting someone to set up a PC or laptop with a serial connection for remote access can be quite a hassle.   I have used the following configurations to get remote serial access using only an onsite router.

Setting up 802.q and switch ports in an ASR9000

IOS-XR has a structure that is very different than standard IOS. I would recomend checking the different documentation at Cisco.com this post is not going to explain things like having to commit a config before it is applied… etc, but rather I am going to assume you have read the getting started guide. The project that… Continue reading Setting up 802.q and switch ports in an ASR9000

Setting up PPPoE Termination

I’ve been working with a lot of PPPoE deployments in the past few weeks, and decided to post a short template of the Cisco side of things.  Note that I will not be blogging on how to set up a radius server in this post or how to set up the AV-Pairs to rate-limit etc…