Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 976

22 Intermediate System to Intermediate System (IS-IS) The intermediate system to intermediate system (IS-IS) is an interior gateway protocol that uses a shortest-path-first algorithm. IS-IS facilitates the communication between open systems, supporting routers passing both IP and OSI traffic. A router is considered an intermediate system. Networks are partitioned into manageable routing domains, called areas. Intermediate systems send, receive, and forward packets to other routers within their area (Level 1 and Level 1-2 devices). Only Level 1-2 and Level 2 devices communicate with other areas. IS-IS protocol standards are listed in the Standard Compliance chapter in the Dell Networking OS Configuration Guide. NOTE: The fundamental mechanisms of IS-IS are the same between IPv4 and IPv6. Where there are differences between the two versions, they are identified and clarified in this chapter. Except where identified, the information in this chapter applies to both protocol versions. adjacency-check Verify that the "protocols supported" field of the IS-IS neighbor contains matching values to this router. C9000 Series Syntax adjacency-check To disable adjacency check, use the no adjacency-check command. Defaults Command Modes Enabled. • ROUTER ISIS (for IPv4) • CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6) Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. 976 Intermediate System to Intermediate System (IS-IS)