Compare local internet breakout with hub backhaul to see the bandwidth saved at the data centre edge.
Every megabit broken out at the branch is a megabit that never traverses the WAN twice — once inbound to the hub and once outbound to the internet. The remaining share still consumes hub capacity and the hub's security stack. Breakout decisions drive both circuit spend and firewall sizing at the hub; a 70% breakout policy on 40 sites removes over a gigabit of load from the central edge.
Internet Breakout
hub load = sites × users × per-user demand × (1 − local breakout share); bandwidth avoided is the complement.
hub load = sites × users × per-user demand × (1 − local breakout share); bandwidth avoided is the complement. Every megabit broken out at the branch is a megabit that never traverses the WAN twice — once inbound to the hub and once outbound to the internet. The remaining share still consumes hub capacity and the hub's security stack.
Breakout decisions drive both circuit spend and firewall sizing at the hub; a 70% breakout policy on 40 sites removes over a gigabit of load from the central edge.
This calculator takes 5 inputs: Branch sites, Users per site, Internet demand per user, Traffic broken out locally, Hub internet capacity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.