A complex routing protocol that shares information with other routers in order to determine the best path. IS-IS was the first comprehensive link state protocol, and OSPF and NLSP evolved from it.

Network layer routing protocols provide the communication protocols and algorithms for determining routes to every destination and also for distributing the routing information throughout the network.

Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...

Network Engineers are always looking for new ways to gain some low-cost network testing capabilities. Few companies sufficiently fund networking labs for their networking teams to learn on prior to ...