Thursday, October 15, 2020

Firewall Capacity Planning

Hi All,

We are undertaking an O365 migration, which has shown that amoungst other things, as we start using more our Edge Firewalls are much closer to capacity then the team reliased. Not having done much capacity planning when it comes to new firewalls before, has anyone got any tips or anything to share that might help make the exercise feel a little less like a dark art?

Current ASA5545 (Non-NGFW) - Av CPU 65% with peaks of 85% ish and Throughput Peaks of around 1.2- 1.4 Gbps with around 1000 users using Teams at the moment.

Planning on utilising O365 Exchange, Doubling Teams usage, Streams/ Live Events to begin with for around 3000 Users.



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