Controller sizing

jovo

Hi Community,

For a deployment, I like to know how many CPE's i can attach to a redundant controller pair for my Versa SD-WAN. I read in the documentation, 2500, but i am not sure if there is an dependency on number of WAN interfaces/IPsec tunnels I have.

Can someone please confirm?

DaveT

A controller can scale to 5k CPE/branches assuming the following hardware resources-

*16 core Intel Xeon Skylake16 CPU

*16GB RAM

*120 GB SSD

*4 x 1/10 Gigabit Ethernet NIC

This number is based on 5k IKE based IPsec tunnels and 5k MP-BGP sessions. (1 each per CPE)

jovo

Thanks DaveT

Andrey

Hi jovo,

Please, also important note about controllers and hub-controllers deployment, mentioned in Hardware and Software Requirements for Headend - Versa Networks:

• When more than 500 sites are connected to a Controller or Hub-Controller node, allocate eight CPUs for control plane processing by issuing the following CLI command and then rebooting the node:

Controller-CLI> request system isolate-cpu enable num-control-cpu 8

Note: The above assumes the system has a minimum of 16 cores out of which 8 cores are reserved for the control plane.