David Rothera

It has been some time since I last updated the blog but that isn’t to say that I haven’t been working/studying away.

I know this is a little off-topic for a Cisco blog but anyway, whilst I am learning some voice stuff I may post something related from time to time.

Earlier today Ivan Pepelnjak over at IOS Hints (url / @ioshints) posted a piece on his blog in which he mentioned the behaviour of MPLS QoS markings and how they don’t copy over upon label imposition at the edge-LSR (the post is here).

Cisco has for some time been using a tool called IOU (IOS on Unix) to be able to simulate configurations for troubleshooting and for testing purposes internally.

I thought I would join every man and his dog and write either a 2010 recap or a 2011 prediction post.

Just as a quick note that over the next few months I will be posting a number of ‘snippet’ posts on various technologies and things that I have learned.

In the example below we have three BGP autonomous systems (AS1, AS2 and AS3) each with one router in it.

Well I know it was only a week ago that I did the SWITCH but after initially looking over the TSHOOT material I started to think that this was definitely going to be the easiest of the three certifications.

Well I am a little behind schedule (I said that I wanted to complete SWITCH by mid November) but hey at least I got it done in the right year (just!

Well it has been a while since I posted on here, I am still heading towards my CCNP and am studying for the SWITCH exam as we speak.

Well after last week’s failure I thought the best thing to do would be to just get right back on it, well this morning I retook the ROUTE exam and passed.

Yesterday I took the ROUTE (642-902) exam, and yesterday I failed that very same exam.

Well tomorrow I am taking the plunge and taking my ROUTE (642-902) exam.

Well its been over a week since my last post and I’m still knuckling down for my CCNP, I am looking at taking the ROUTE exam hopefully next week and then I can start the SWITCH studies.

I have been going over some of my summary topics for EIGRP and just decided to lab one out so that I could see the effect of stub networks on convergence etc.