When deploying PIM ASM, the Designated Router (DR) role plays a significant part in how PIM ASM works. The DR on a segment is responsible for registering mulicast sources with the Rendezvous Point (RP) and/or sending PIM Joins for the
Lessons Learned from Deploying Multicast
Lately I have been working a lot with multicast, which is fun and challenging! Even if you have a good understanding of multicast unless you work on it a lot there may be some concepts that fall out of memory
CCIE SP version 4 has been announced
Cisco has been updating their certifications lately. The CCIE RS got bumped to version 5 and went all virtual. The CCNP RS was then also updated and now it’s time for the CCIE SP. It seems that Cisco has done
Checking community interest for a new kind of networking site
A couple of days ago I got an idea for a new kind of networking site. The idea is to do something similar to dpreview.com but for network products. I work a lot on network designs these days and part
Cisco Adds New Routers In the ISR 4000 Family
The Cisco ISR G2 routers have been around for a while now. Roughly a year ago, Cisco released the Cisco 4451-X router which was the first ISR running IOS-XE. Cisco has now added new routers to the 4000 family, which
A Quick Look at NAT64 and NAT46
Introduction In the best of worlds we would all be using native IPv6 now, or at least dual stack. That is not the case however and IPv4 will be around for a long time yet. During that time that both
A Quick Look at MPLS-TE
Introduction I’m currently designing and implementing a large network which will run MPLS. This network will replace an old network that was mainly L2 based and did not run MPLS, only VRF lite. There are a few customers that need
400k Views in 4 Years – A Review of My Last 4 Years
Very often in our lives we are fully focused on what is going to happen in the future. We rarely look back at what we have done and how we got to where we are now. People that know me,
The New CCNP – Combining Exams
The new CCNP RS was just released. The last day to test with the old exams is January 29, 2015. What is usually seen is that people start to panic, they want to complete the old exams before they are
CCNP RS Version 2
I woke up to the news that CCNP RS Version 2 is now live. As usual, there is no reason to panic. If you have been studying for the old version, nothing has been wasted. OSPF is still OSPF, EIGRP