Traditionally, Cisco has leveraged BFD to monitor tunnels and their performance and Application Aware Routing (AAR) to reroute traffic. BFD has been used to measure: Additionally, BFD is also used to verify liveliness of the tunnels. This works well, but
Catalyst SD-WAN 20.13 – RBAC
Catalyst SD-WAN has supported Role Based Access Control (RBAC) for a long time. It has been possible to use predefined roles or create custom roles and defining what areas the user should have access to. However, before 20.13 it was
Catalyst SD-WAN – Introduction to Configuration Groups
One of the challenges with Catalyst SD-WAN is managing templates. Depending on how successful you are in standardizing your deployment, you risk ending up with many device templates. This can also be amplified if you have several platforms as each
Catalyst SD-WAN – Bootstrapping a Catalyst8000v Using a File on Bootflash
Yesterday I showed how to bootstrap a Catalyst8000v from the CLI. Today, I will show how to put a file on bootflash which includes the configuration but also the root certificate and the certificate of the device. This is a
Catalyst SD-WAN – Botstrapping a Catalyst8000v in a Virtual Lab
I’m rebuilding my Catalyst SD-WAN lab and thought I would give some quick pointers on how to bootstrap a Catalyst 8000v in your virtual lab. When the router first boots up, it will be in autonomous mode (non-SD-WAN mode): Configure
Using Python to Calculate Cisco SD-WAN Tunnel Numbers – Part 2
In the first post I shared with you my code to calculate tunnel numbers in Cisco SD-WAN. I’m a beginner in Python so I thought it would be a great learning experience to have someone experienced in Python, such as
Using Python to Calculate Cisco SD-WAN Tunnel Numbers – Part 1
When using Cisco SD-WAN on IOS-XE, it uses tunnel interfaces to configure parameters of the implementation. There is a mapping between what interface the tunnel is sourcing from and the name of the tunnel interface. For example, if the tunnel
Choosing SD-WAN Vendor – Have You Found the Tradeoff?
When I studied for my CCDE, I had the good fortune of receiving mentoring from Russ White. Something he taught me, that I really took to heart, is that in every design and choice you make, there is a tradeoff.
How Difficult is SD-WAN?
In a recent Packet Pushers Heavy Networking episode, Ethan and Greg discussed how difficult SD-WAN is, and why you shouldn’t outsource your SD-WAN to a MSP. So, how difficult is really SD-WAN? Now, this is of course going to depend
When Is Something SD-WAN?
A couple of days ago, I wrote on LinkedIn asking you what a SD-WAN solution should consist of. https://www.linkedin.com/posts/danieldib_sdn-sdwan-wan-activity-6583614108971655168-BH8x The post was meant to create a discussion and there were a lot of great answers. Some of the features are