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Diffstat (limited to 'docs/configuration/protocols/isis.rst')
| -rw-r--r-- | docs/configuration/protocols/isis.rst | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/docs/configuration/protocols/isis.rst b/docs/configuration/protocols/isis.rst index 64cc2535..753637f9 100644 --- a/docs/configuration/protocols/isis.rst +++ b/docs/configuration/protocols/isis.rst @@ -6,12 +6,14 @@ IS-IS ##### -:abbr:`IS-IS (Intermediate System to Intermediate System)` is a link-state interior gateway routing protocol. -Like OSPF, IS-IS runs the Dijkstra shortest-path first (SPF) algorithm to create a database of the network’s -topology and, from that database, to determine the best (that is, shortest) path to a destination. -The routers exchange topology information with their nearest neighbors. -IS-IS runs directly on the data link layer (Layer 2). -IS-IS addresses are called :abbr:`NETs (Network Entity Titles)` and can be 8 to 20 bytes long, but are generally 10 bytes long. +:abbr:`IS-IS (Intermediate System to Intermediate System)` is a link-state +interior gateway routing protocol. Like OSPF, IS-IS runs the Dijkstra +shortest-path first (SPF) algorithm to create a database of the network’s +topology and, from that database, to determine the best (that is, shortest) +path to a destination. The routers exchange topology information with their +nearest neighbors. IS-IS runs directly on the data link layer (Layer 2). +IS-IS addresses are called :abbr:`NETs (Network Entity Titles)` and can be +8 to 20 bytes long, but are generally 10 bytes long. For example :abbr:`NET (Network Entity Title)` @@ -28,12 +30,14 @@ The IS-IS address consists of three parts: ``0001`` IS-IS area number (Area1) System identifier: - ``1921.6800.1002`` For system idetifier we recommend to use IP address or MAC address of the router. + ``1921.6800.1002`` For system idetifier we recommend to use IP address or + MAC address of the router. NET selector: ``00`` Must always be 00, to indicate "this system". -Simple IS-IS configuration using 2 nodes and redistributing connected interfaces. +Simple IS-IS configuration using 2 nodes and redistributing connected +interfaces. **Node 1:** |