Dell S3100 Command Line Reference Guide for the Series 9.82.0 - Page 982
Parameters, level-1, level-1-2, level-2-only, Defaults, Command Modes, Command History, 80.0P5, 80.
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Parameters level-1 level-1-2 level-2-only You can form a Level 1 adjacency if there is at least one common area address between this system and neighbors. You cannot form Level 2 adjacencies on this interface. You can form a Level 1 and Level 2 adjacencies when the neighbor is also configured as Level-1-2 and there is at least one common area, if not, a Level 2 adjacency is established. This setting is the default. You can form a Level 2 adjacencies when other Level 2 or Level 1-2 routers and their interfaces are configured for Level 1-2 or Level 2. Level 1 adjacencies cannot be established on this interface. Defaults level-1-2 Command Modes INTERFACE Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version 9.8(2.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.5(0.1) 9.0.2.0 8.3.19.0 8.3.12.0 8.3.11.1 Description Introduced on the S3100 series. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the S4810. Introduced on the Z9000. Usage Information Because the default establishes Level 1 and Level 2 adjacencies, you do not need to configure this command. Routers in an IS-IS system must be configured as a Level 1-only, Level 1-2, or Level 2-only system. Only configure interfaces as Level 1 or Level 2 on routers that are between areas (for example, a Level 1-2 router) to prevent the software from sending unused hello packets and wasting bandwidth. 982 Intermediate System to Intermediate System (IS-IS)
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