I wanted to let everyone know about OpenDNS. They provide publicly-accessible DNS servers at the following addresses: 184.108.40.206 220.127.116.11 This is a fantastic service, and leads me to a discussion on the topic of Anycast and DNS. Anycast is one of the types of traffic flows. Remember the other types: Unicast: used for peer toContinue reading “OpenDNS, DNS, and Anycast”
CCDE Roadmap CCNA certification (complete) CCDA certification (complete) CCIP certification: training CTT-TAC MPLS Online bootcamp CTT-TAC QoS Online bootcamp tests 642-642 QoS 642-691 MPLS+BGP composite 642-892 Composite reading list MPLS and VPN architectures (Pepelnjak / Guichard) Routing TCP/IP volume 2 (Doyle / Carroll) Networkers presentations QoS (2007) CAC (Call Admission Control) (2007) CCDP certification: trainingContinue reading “My Roadmap”
We are all familiar with (or should be) the SRND guides from Cisco. Located here: SRND I’d like to highlight one that I found particularly useful. It goes in to the concept of a routed access layer. Find it here.
I’m beginning to learn a bit about MPLS and have just completed some MPLS OSPF setup. I must say, it seems a bit more complicated than it’s worth. Ok, so by default, even links in the same area are advertised as type 3 summary LSAs. I’m going to work on the sham-link which is supposedContinue reading “MPLS and OSPF”
The CCDE written, as published by Cisco, contains 5 major headings for study. 1. IP Routing. Note: no IPX or Appletalk or anything else. IPv6 basics is a subtopic under ‘generic routing and addressing concepts’ Other than that, no big surprises. I suppose we’ll be concentrating on best practices rather than odd, non-obvious configurations. 2.Continue reading “CCDE Written Outline.. breaking it down.”
Ok, so Cisco recently announced the CCDE certification. Those old timers out there will remember the ill-fated CCIE+Design certification that apparently NOBODY passed. I wonder if this will suffer the same fate. The problem is how does one test against something that is considered a dark art? Networking is not something that falls easily underContinue reading “The Beginning…”