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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

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isis priority

Set the priority of the designated router you select.

Syntax
isis priority value [level-1 | level-2]

To return to the default values, use the no isis priority [value] [level-1 | level-2] command.

Parameters
value
This value sets the router priority. The higher the value, the higher the priority. The range is from 0 to 127. The default is 64.
level-1
(OPTIONAL) Specify the priority for Level 1. This setting is the default.
level-2
(OPTIONAL) Specify the priority for Level 2.
Defaults
value = 64; level-1 (if not otherwise specified).
Command Modes
INTERFACE
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.8(2.0)
Introduced on the S3100 series.
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.

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