I’m hosting a network design webinar at the Cisco Learning Network on Feb 19th, 20.00 UTC+1. As you may know, I am studying for the CCDE so I’m focusing on design right now but my other reason for hosting this
Cisco Live in San Diego – Will You Make It?
“Make it” was one of the first singles released by the the band Aerosmith. Since then these guys have been rocking away for about 40 years. What does this have to do with Cisco Live? Aerosmith will be the band
STP Notes for CCDE
These are my study notes for CCDE based on “CCIE Routing and Switching v5.0 Official Cert Guide, Volume 1, Fifth Edition” and “Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874), Third Edition“, “INE – Understanding MSTP”
Noction Intelligent Routing Platform (IRP) – What is it?
I was contacted by some people at Noction and asked if I was interested in writing about their platform, the Intelligent Routing Platform (IRP). Since it’s a product that uses Border Gateway Protocol (BGP), it peaked my interest. First let’s
Cisco Reveals New Products – The Time of Multigigabit is Here
Wireless networks are becoming faster and faster. With 802.11ac Wave 2, wireless networks will be capable of achieving speeds up to 6.8 Gbps. This creates challenges when connecting APs to switches which normally run Ethernet at 1GE or 10GE. To
QoS Design Notes for CCDE
Trying to get my CCDE studies going again. I’ve finished the End to End QoS Design book (relevant parts) and here are my notes on QoS design. Basic QoS Different applications require different treatment, the most important parameters are: Delay:
Unique RD per PE in MPLS VPN for Load Sharing and Faster Convergence
This post describes how load sharing and faster convergence in MPLS VPNs is possible by using an unique RD per VRF per PE. It assumes you are already familiar with MPLS but here is a quick recap. The Route Distinguisher
Book Review – End-to-End QoS Network Design: Quality of Service for Rich-Media & Cloud Networks, Second Edition
As part of my CCDE studies, I needed a good resource on QoS. There have basically been two good books on QoS before, the first edition of End to End Qos Network Design and Qos-Enabled Networks: Tools and Foundations. The
The Tale of the Mysterious PIM Prune
Christmas is lurking around the corner and in the spirit of Denise “Fish” Fishburne, I give you the “The Tale of the Mysterious PIM Prune”. I have been working a lot with multicast lately which is also why I’ve blogged
Using EEM to Speed up Multicast Convergence when Receiver is Dually Connected
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