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  1. 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.

  2. networklessons.com › cisco › ccie-routing-switching-writtenIntroduction to IS-IS - NetworkLessons.com

    IS-IS is an IGP, link-state routing protocol, similar to OSPF. It forms neighbor adjacencies, has areas, exchanges link-state packets, builds a link-state database and runs the Dijkstra SPF algorithm to find the best path to each destination, which is installed in the routing table.

  3. www.cisco.com › c › enIP Routing: ISIS Configuration Guide - IS-IS Overview and Basic...

    Feb 15, 2016 · IS-IS is a link-state Interior Gateway Protocol (IGP). Link-state protocols are characterized by the propagation of the information required to build a complete network connectivity map on each participating device. That map is then used to calculate the shortest path to destinations.

  4. www.pynetlabs.com › introduction-to-is-is-protocolIntroduction to IS-IS Protocol - How it Works and Purpose?

    Feb 1, 2024 · IS-IS is a link-state routing protocol that was originally developed by Digital Equipment Corporation (DEC) for their DECnet Phase V network architecture, which used a different network layer protocol called CLNS (Connectionless Network Service).

  5. info.support.huawei.com › info-finder › encyclopediaWhat Is IS-IS? How Does IS-IS Work? - Huawei - Huawei Wireless ...

    Jul 20, 2023 · IS-IS is a dynamic routing protocol initially designed by the International Organization for Standardization (ISO) for its Connectionless Network Protocol (CLNP).

  6. 30dayscoding.com › blog › isis-in-networking-a-comprehensive-guideDemystifying ISIS in Networking: Understanding the Basics

    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.

  7. www.juniper.net › documentation › usIS-IS Overview | Junos OS | Juniper Networks

    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.

  8. networkdirection.net › articles › routingandswitchingIntroduction to IS-IS - Network Direction

    IS-IS, or Intermediate System to Intermediate System, is an open standard routing protocol. ISO published the standard as a way to route datagrams as part of their OSI stack. IETF later republished the standard, and added IP route support. There are a lot of similarities between IS-IS and OSPF.

  9. community.fs.com › encyclopedia › isisWhat is IS-IS and how does it function? | FS Community

    Apr 2, 2024 · IS-IS, initially devised by the International Organization for Standardization (ISO) for its Connectionless Network Protocol (CLNP), serves as a dynamic routing protocol.

  10. networklessons.com › is-isIS-IS - NetworkLessons.com

    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.