Number of BFD session per vEdge

[amcastagna]

Hello Guys,

I'm designing a project that has many remote sites (around 900) with most of the possible combination in terms of topologies with the following access configurations: 1internet only, 1 internet + 1 mpls, 1 internet + 1 internet, 1 mpls + 1 mpls, 1 internet + 1 internet in HA, 2 internet + 1 mpls, 2 internet in HA + 2 internet in HA and maybe other as well. (This means a lot of TLOCs in a full mesh topology)

The question is regarding how to estimate the amount of BFD session per site in a full mesh topology and how to choose the right vEdge.

I know each TLOC demands a BFD session with all other TLOC and this may limit the scalability of the solution, so what are the alternatives to keep small devices for remote sites? I guess that to support this large deployment I may need bigger boxes only to support the BFD sessions which makes the solution much more expensive.

Thanks in advance.

Andres

[kumaamit]

Hello Andres,

Please go through the following link:

https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/sd-wan/nb-07-vedge-routers-data-sheet-cte-en.pdf

It might help you with selecting the right device for your deployment.

Thanks,

Amit

[prastrip]

Have control policies and go with hub and spoke or regional solution also use restrict wherever possible.