Reference Guide

Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
To protect your network from unauthorized access, use this command to prevent
unauthorized routers from forming adjacencies.
You can assign different passwords for different routing levels by using the
keywords level-1 and level-2.
The no form of this command disables the password for Level 1 or Level 2 routing,
using the respective keywords level-1 or level-2.
This password provides limited security as it is processed as plain text.
isis priority
Set the priority of the designated router you select.
S5000
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 0 to 127. The default is 64.
level-1 (OPTIONAL) Specify the priority for Level 1. This 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
Version 9.0(1.3) Introduced on the S5000.
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.
Intermediate System to Intermediate System (IS-IS)
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