I’m planning to do a post on BPDUs sent by Cisco switches and analyze why they are sent. To fully understand the coming post first we need to understand the different versions of Ethernet. There is more than one version?
Source Specific Multicast (SSM) and IGMP filtering
Regular multicast is known as Any Source Multicast (ASM). It is based on a many to many model where the source can be anyone and only the group is known. For some applications like stock trading exchange this is a
Interesting facts about the CCIE lab
I found a link to an interesting video with Kevin Wallace 2x CCIE. He did an interview with a CCIE proctor anonymously and some of the answers really surprised me. The proctor chooses the lab you get 80% of all
Regrouping
So by now I have been to the lab twice and I have a lot of experience. Unfortunately I didn’t pass yet even though I felt I had enough technology to be able to pass. This will learn you some
Failed 2nd attempt
Hi, I’m back for Brussels but unfortunately I didn’t pass this time either. I got a little bit closer as I passed the TS section this time. I was able to breeze through that. I can’t seem to catch a
MPLS troubleshooting scenario
I’m in final preparation for my second attempt and I have been doing a lot of troubleshooting scenarios lately. I created a MPLS topology in GNS3 and sent it to my friend Darren for testing. He is taking his lab
Update
So I have been pretty quiet lately. I am in full preparation for my second attempt which is not in a so distant future. Since my first attempt I have not been doing any Vol2 labs I am focusing on
Domain renewed
I was able to renew my domain so links should now be working again. Tell me if you find any problems.
Some links broken
I’m having issues with a domain where I host some files for the blog. Apparently I forgot to pay for renewing it. Hopefully I can get this resolved or I’ll look at moving the content somewhere else. This does not
Catalyst QoS
I’m back studying and I have already booked a new lab date. I won’t make an announcement until I get back. This is to keep a bit of the pressure off from taking the lab. The last couple of days