What is IS-IS? || How it Works? || Learn the Key points for your interview in 5 mins.
Intermediate System to Intermediate System (IS-IS)
Description: IS-IS is a link-state protocol similar to OSPF, primarily used in larger networks.
How it Works: IS-IS uses the link-state algorithm to find the shortest path to the destination. Routers periodically share link-state information to maintain an up-to-date network map.
Used in: Service provider networks, large-scale enterprise networks, and some large ISPs.
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