Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 539

level-1 level-2 (OPTIONAL) Specify the priority for Level 1. This is the default. (OPTIONAL) Specify the priority for Level 2. Defaults value = 64; level-1 (if not otherwise specified) Command Modes INTERFACE Command History Version 9.0.2.0 Version 8.3.7.0 Introduced on the S6000. Introduced on the S4810. Usage Information You can configure priorities independently for Level 1 and Level 2. Priorities determine which router on a LAN will be the designated router. Priorities are advertised within hellos. The router with the highest priority will become the designated intermediate system (DIS). Routers with priority of 0 cannot be a designated router. Setting the priority to 0 lowers the chance of this system becoming the DIS, but does not prevent it. If all the routers have priority 0, one with highest MAC address will become DIS even though its priority is 0. is-type S6000 Configure IS-IS operating level for a router. Syntax is-type {level-1 | level-1-2 | level-2-only} To return to the default values, enter no is-type. Parameters level-1 level-1-2 level-2-only Allows a router to act as a Level 1 router. Allows a router to act as both a Level 1 and Level 2 router. This is the default. Allows a router to act as a Level 2 router. Defaults level-1-2 Command Modes ROUTER ISIS Command History Version 9.0.2.0 Version 8.3.7.0 Introduced on the S6000. Introduced on the S4810. Usage Information The IS-IS protocol automatically determines area boundaries and are able to keep Level 1 and Level 2 routing separate. Poorly planned use of this feature may cause configuration errors, such as accidental area partitioning. If you are configuring only one area in your network, you do not need to run both Level 1 and Level 2 routing algorithms. The IS type can be configured as Level 1. | 539