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diff --git a/docs/routing/isis.rst b/docs/routing/isis.rst deleted file mode 100644 index 807dca83..00000000 --- a/docs/routing/isis.rst +++ /dev/null @@ -1,74 +0,0 @@ -.. include:: ../_include/need_improvement.txt - -.. _isis: - -##### -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. - -For example :abbr:`NET (Network Entity Title)` - -.. code-block:: none - - 49.0001.1921.6800.1002.00 - -The IS-IS address consists of three parts: - - :abbr:`AFI (Address family authority identifier)` - ``49`` The AFI value 49 is what IS-IS uses for private addressing. - - Area identifier: - ``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. - - NET selector: - ``00`` Must always be 00, to indicate "this system". - -Simple IS-IS configuration using 2 nodes and redistributing connected interfaces. - -**Node 1:** - -.. code-block:: none - - set interfaces dummy dum0 address '203.0.113.1/24' - set interfaces ethernet eth1 address '192.0.2.1/24' - - set policy prefix-list EXPORT-ISIS rule 10 action 'permit' - set policy prefix-list EXPORT-ISIS rule 10 prefix '203.0.113.0/24' - set policy route-map EXPORT-ISIS rule 10 action 'permit' - set policy route-map EXPORT-ISIS rule 10 match ip address prefix-list 'EXPORT-ISIS' - - set protocols isis FOO interface eth1 - set protocols isis FOO net '49.0001.1921.6800.1002.00' - set protocols isis FOO redistribute ipv4 connected level-2 route-map 'EXPORT-ISIS' - -**Node 2:** - -.. code-block:: none - - set interfaces ethernet eth1 address '192.0.2.2/24' - - set protocols isis FOO interface eth1 - set protocols isis FOO net '49.0001.1921.6800.2002.00' - -Show ip routes on Node2: - -.. code-block:: none - - vyos@r2:~$ show ip route isis - Codes: K - kernel route, C - connected, S - static, R - RIP, - O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP, - T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, - F - PBR, f - OpenFabric, - > - selected route, * - FIB route, q - queued route, r - rejected route - - I 203.0.113.0/24 [115/10] via 192.0.2.1, eth1, 00:03:42 |