Intermediate System to Intermediate System | 503Configuring the distance of a routeConfigure the distance for a route using the distance command from ROUTER ISIS mode.Change the IS-typeYou can configure the system to act as one of the following:• Level 1 router• Level 1-2 router• Level 2 routerUse the following command in ROUTER ISIS mode to change the IS-type for the router, uUse the show isis protocol command in EXEC Privilege mode (Figure 476) to view which IS-type isconfigured. The show config command in ROUTER ISIS mode displays only non-default information, soif you do not change the IS-type, the default value (level-1-2) is not displayed.The default is Level 1-2 router. When the IS-type is Level 1-2, the software maintains two Link Statedatabases, one for each level. Use the show isis database command to view the Link State databases(Figure 477).narrow transition 0 to 63transition 0 to 63Command Syntax Command Mode Purposeis-type {level-1 | level-1-2 | level-2-only} ROUTER ISIS Configure IS-IS operating level for a router.Default is level-1-2.Command Syntax Command Mode Purposeis-type {level-1 | level-1-2 | level-2} ROUTER ISIS Change the IS-type for the IS-IS process.Table 23-3. Correct Value Range for the isis metric commandMetric Style Correct Value Range
