Okay… so just some major geeky fun in the lab. I had lots of fun doing it… so why not share it with you and let you in on some geeky fun? Thirty-eight minute YouTube with a PDF guide book…. Read More ›
Routing
Fun in the Lab: DMVPN: Per-Tunnel QoS and High Availability
Went on an customer “ride-along” with Advanced Services this week. Customer’s requirement was that the DMVPN headend have 2 physical interfaces for High Availability. These 2 interfaces need to be the same subnet because they are going into 2 firewalls:… Read More ›
The Case of the Failed IPv6 Ping – Part 2: The Solution
Put your detective hat on your head and your Network Detective badge on your lapel. It is time to SOLVE for the Case of the Failed IPv6 Ping.
The Case of the Failed IPv6 Ping – Part 1: The Facts and Clues
Put your detective hat on your head and your Network Detective badge on your lapel. It is time for the Case of the Failed IPv6 Ping.
My Current IWAN Analogies
I use analogies. Just how my brain works…. and how I sometimes learn and teach. Token-ring source-route bridging analogy was “breadcrumbs thru the network”. Analogy for DLSw+ was a boat getting the breadcrumbs over water between 2 islands. I think… Read More ›
Clearing Up Some Misinformation RE: eBGP Multihop and TTL
Myth: You have to set ttl to 2 because it is decremented on the way to the loopback. Years and years ago I was trying to learn more about BGP and I was reading some book with a chapter on… Read More ›
IWAN: Why EIGRP or BGP Over the DMVPN Tunnel?
IWAN (Intelligent Wide Area Network) and Why EIGRP or BGP over the DMVPN Tunnel. In this YouTube “playing in the lab” IWAN fun we are going to drill down between 2 sites – Branch 3 and the Hub site. Branch… Read More ›