Users Guide
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Intermediate System to Intermediate System (IS-
IS)
IS-IS is an interior gateway protocol that uses shortest-path-rst algorithm. IS-IS facilitates the communication between open
systems, supporting routers passing through both IP and OSI trac.
A router is considered as 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 Conguration Guide.
NOTE: The fundamental mechanisms of IS-IS are the same for IPv4 and IPv6. However some command modes might
vary when applied to IPV4 and IPV6. These variations have been explicitly explained for such commands. If the variation
is not mentioned, then the information applies to both the protocol versions.
adjacency-check
Verify that the “protocols supported” eld of the IS-IS neighbor contains matching values to this router.
Syntax
adjacency-check
To disable adjacency check, use the no adjacency-check command.
Defaults Enabled.
Command Modes
• ROUTER ISIS (for IPv4)
• CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command History
This guide is platform-specic. 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.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
Intermediate System to Intermediate System (IS-IS)
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