IS-IS
![Note](../../images/Note_Note.png)
Note
The IS-IS feature is supported only at and above the
license level listed for this feature in the license tables
in the Feature License Requirements document.
This chapter introduces IS-IS, a link state protocol that distributes
routing information between routers belonging to an autonomous system. It provides
configuration commands and examples and information about configuring, displaying, and
managing IS-IS on a network. This chapter assumes that you are already familiar with
Intermediate System-Intermediate System (IS‑IS) and IP routing.
If not, refer to the following publications for additional
information:
- RFC 1195—Use of OSI IS-IS for Routing in TCP/IP and Dual
Environments
- RFC 2763—Dynamic Hostname Exchange Mechanism for IS-IS
- RFC 2966—Domain-Wide Prefix Distribution with Two-Level
IS-IS
- RFC 2973—IS-IS Mesh Groups
- RFC 3373—Three-Way Handshaking for IS-IS Point-to-Point
Adjacencies
- RFC 3719—Recommendations for Interoperable Networks using
Intermediate System to Intermediate System (IS-IS)
- RFC 3787—Recommendations for Interoperable IP Networks using
Intermediate System to Intermediate System (IS-IS)
- draft-ieft-isis-ipv6-06—Routing IPv6 with IS-IS
- draft-ietf-isis-restart-02—Restart signaling for IS-IS
- draft-ietf-isis-wg-multi-topology-11—Multi-topology (MT) routing
in IS-IS
- ISO 10589—OSI IS-IS Intra-Domain Routing Protocol (also
available as RFC 1142)
- Interconnections: Bridges and Routers by Radia
Perlman, ISBN 0-201-56332-0, Published by Addison-Wesley Publishing Company