Advanced IGP Features regarding Huawei Devices

In this lab was possible to understand better a lot of funcionalities regarding IGP protocols like OSPF and ISIS, in this way we can speed up the convergence when the topology suffer any fail being it physical or not.

Some concepts like FRR and BFD was introduced, even if I had already been in touch with this IGP features, is always very important to remember some key concepts to continue improving and remembering.

Also i could see how to contral better the size of the Link State Protocols like OSPF and ISIS.

A big example of how to speed up the routing convergence is applying the BFD protocol over the ospf procces as we can see in the following image:

In a network where we have a layer 2 device for example the BFD protocol can help to identify some failure like we have an example in the topology the connection between R1 and R3 is being through SW1 so if we shutdown R3 or R1 port, the other router can't identify the failure, as an experiment I shuted R3 Ethernet 0/0/0, and BFD could help to identify fast the network fault as we can see in the following image:

As we can see with the command "dis ospf peer last-nbr-down" the BFD Session was down and so.. OSPF could kill the session faster than the normal.

About the FRR (Fast Reroute) tool, this functionality is very easy to apply and handle, you can enter the ospf process and apply it with two lines of command as we can see in the image below:

After FRR option applyed we can check that now all the routes have a backup path:

This way we can speed up even more the network convergence.

So this is some features that we can use to provide a better and faster network in our projects.

Next article I will handle some Advanced BGP Features, see you there! :D

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#ospf #is-is #bfd #networking #huawei