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  2. en.wikipedia.org › wiki › IS-ISIS-IS - Wikipedia

    Intermediate System to Intermediate System ( IS-IS, also written ISIS) is a routing protocol designed to move information efficiently within a computer network, a group of physically connected computers or similar devices. It accomplishes this by determining the best route for data through a packet switching network.

  3. IS-IS is an IGP, link-state routing protocol, similar to OSPF, but developed for CLNS, not IP. It uses different areas, levels and LSPs to exchange routing information and build the SPF tree.

  4. Apr 27, 2024 · ISIS (Intermediate System to Intermediate System) is a link-state routing protocol used in computer networks to determine the best path for forwarding packets. It is a interior gateway protocol (IGP) that helps routers to exchange routing information and build a map of the network topology.

  5. IS-IS is an open standard routing protocol that carries reachability data for any protocol. Learn about its history, components, areas, router levels, and how it differs from OSPF.

  6. Feb 1, 2024 · IS-IS protocol or Intermediate System to Intermediate System is a type of IGP (Interior Gateway Protocol), which simply means it can only be used for routing within a single administrative domain or network. One can not use it for routing between different ASes.

  7. IS-IS is a link-state routing protocol, similar to OSPF. It has a backbone area and local area. These lessons explain how IS-IS works.

  8. An IS-IS network is a single autonomous system (AS), also called a routing domain, that consists of end systems and intermediate systems. End systems are network entities that send and receive packets. Intermediate systems send and receive packets and relay (forward) packets.