For the details on what Overlay Transport Virtualization (OTV) is and how it works on a high-level, see my previous blog entry about OTV 101. OTV troubleshooting requires a basic understanding of Multicast, as well as ISIS. In-depth troubleshooting on these subjects are not part of the scope of this document. This document will only […]
The post Cisco OTV Implementation & Troubleshooting (Legacy Multicast mode) appeared first on Packet Pushers Podcast and was written by Ken Matlock.
For many network engineers, IP multicast routing is evil. Difficult to design, complicated to implement, painful to troubleshoot and challenging to scale, multicast routing is rarely implemented on a given network unless it’s absolutely required. Most engineers would just rather not bother until the issue is forced upon them. Blame PIM. Blame RPF checks. Blame […]
The post Show 147 – Avaya Fabric Connect Makes Multicast Simple (Really) – Sponsored appeared first on Packet Pushers Podcast and was written by Ethan Banks.
What is OTV? Overlay Transport Virtualization (OTV) is a Cisco-proprietary protocol suite that allows us to extend Layer 2 between datacenters with Layer 3 boundaries in between. It works by encapsulating the L2 packets into L3 multicast packets and sending them out to all other OTV AED’s (Authoritative Edge Devices, used for loop prevention). The […]
The post Cisco OTV 101 (Legacy Multicast Mode): MAC Learning Process Walk appeared first on Packet Pushers Podcast and was written by Ken Matlock.
Now that I’ve returned from the whirlwind that was Interop Las Vegas, I thought I’d share some thoughts about my experience as a speaker and attendee. First the good: The UBM staff was awesome and I appreciated the chance to pontificate on one of my favorite subjects, firewalls. Thanks to some quick thinking by the […]
The post Interop: Firewalls, Booth Babes and Unicorn Poop appeared first on Packet Pushers Podcast and was written by Mrs. Y.
This post represents the solution and explanation for quiz-11. A very important topic when configuring Network Address Translation (NAT) is the order of operation. Who is performed first: NAT or Routing ?
It’s no secret that our industry is full of those with interesting eccentricities. These characteristics are found in varying degrees with those we come into contact with daily. The extremes of these often manifest themselves as a general perception of those in technology. This even happens as technical characters are portrayed television. One example of this […]
The post Identifying Introverted Tendencies appeared first on Packet Pushers Podcast and was written by Paul Stewart.
I was recently in need of a refresher on multicast routing, so I picked up Eric Rosenberg’s A Primer of Multicast Routing (Springer Briefs in Computer Science). The overall plan of the book is excellent, starting with a basic overview of what multicast is (and does), including why multicast is more efficient than unicast for […]
The post Book Review: A Primer of Multicast Routing appeared first on Packet Pushers Podcast and was written by Russ White.
How does the internet work - We know what is networking
Static floating route is static route like any other but with added administrative distance in the configuration R1(config)#ip route 172.16.10.0 255.255.255.0 10.10.10.2 200 Defining the packets route using Static Floating Routes is very interesting topic so I decided to give you a short description of Static floating routes with an example. Static floating route is the […]
No, really! Did you know that your IOS-based router is capable as acting as a static webserver? Below you will find the steps necessary to turn a GNS/Dynamips box (or any ‘testlab’ machine) into something that can serve basic HTTP/HTTPS content. Due to the security implications of the steps below, it’s not recommended to do […]
The post How to Turn Your IOS Router Into a Pr0n Server (Pr0n Not Included) appeared first on Packet Pushers Podcast and was written by Ken Matlock.