So far, we have mostly talked about things that are based on the open IEEE 802.1Q standard which only defines virtual layer 2 networks. However, almost every network also needs routing, and routing operates at layer 3, where packets are sent to a specific next-hop IP address, based on destination IP address. Let’s see how this is handled in an SPB network!
Introducing Virtual Routing and Forwarding
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What happens when we need to route traffic between subnets?
But what if we want to communicate with other, non-SPB networks?
How to build more complex networks?
Senior Systems Engineer at Extreme Networks