topic Re: How to calculate VSX CoreXL instance for network traffic load in General Topics

How to calculate VSX CoreXL instance for network traffic load

Kosin_Usuwanthi — Wed, 05 Mar 2025 03:01:44 GMT

I have plan to upgrade vsx cluster (VSLS mode) and re-disign about CoreXL instance on vsx. The existing version is R80.20 and assign 10 CoreXL per vs.

For the gateway that have 24 physical CPU How to calculate CoreXL instance assign to each vs and should I enable SMT if existing configuration is disable.

Thank You

Re: How to calculate VSX CoreXL instance for network traffic load

emmap — Wed, 05 Mar 2025 04:37:22 GMT

It depends on many things - policy, enabled blades, traffic mix, all of that. Better to run it up with your current configuration and reduce it after monitoring per VS CPU usage for a while if you have more CXL/VS than necessary.

SMT will likely automatically enable during the upgrade, I'd generally recommend leaving it on.

Re: How to calculate VSX CoreXL instance for network traffic load

AkosBakos — Thu, 06 Mar 2025 16:04:36 GMT

Hi @Kosin_Usuwanthi

Yes, this is the recommended path...

Don't forget of keep in mind, changing this kind of parameters on the VS cause a small outage.

Akos