Users Guide

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 Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
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.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
Usage Information
You can configure priorities independently for Level 1 and Level 2. Priorities determine
which router on a LAN is the designated router. Priorities are advertised within hellos.
The router with the highest priority becomes the designated intermediate system (DIS).
NOTE: Routers with a 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 becomes
DIS even though its priority is 0.
is-type
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, use the no is-type command.
Parameters
level-1 Allows a router to act as a Level 1 router.
level-1-2 Allows a router to act as both a Level 1 and Level 2 router. This
setting is the default.
level-2-only Allows a router to act as a Level 2 router.
Intermediate System to Intermediate System (IS-IS) 1143