set-overload

Use set-overload to enable ISIS-SPB to set the LSDB overload bit in LSPs.

Use undo set-overload to restore the default.

Syntax

set-overload [ on-startup [ [ start-from-nbr system-id [ timeout1 [ nbr-timeout ] ] ] | timeout2 ] ]

undo set-overload

Default

The LSDB overload bit is not set.

Views

SPBM view

Predefined user roles

network-admin

Parameters

on-startup: Sets the overload bit when the system starts up.

start-from-nbr system-id [ timeout1 [ nbr-timeout ] ]: Sets the timers for controlling the overload bit state during the process of adjacency establishment. The nbr-timeout timer starts when the device starts up. If the device fails to establish an adjacency with the neighbor identified by system-id before the timer expires, the overload bit is cleared. If adjacency establishment is complete before the timer expires, the timeout1 timer starts. The overload bit is set before the timeout1 timer expires. When the timeout1 timer expires, the overload bit is cleared.

• system-id: Specifies a neighbor by its system ID in XXXX.XXXX.XXXX format.

• timeout1: Sets the delay to clear the overload bit, in the range of 5 to 86400 seconds. The default value is 600 seconds.

• nbr-timeout: Sets the adjacency setup timer in the range of 5 to 86400 seconds. The default value is 1200 seconds.

timeout2: Specifies the amount of time for the overload bit to be set since the system startup. The value range for this argument is 5 to 86400 seconds. The default is 600 seconds.

Usage guidelines

ISIS-SPB sets the overload bit in LSPs to notify its neighbors that it is experiencing an LSDB error condition and cannot forward traffic correctly. During path calculation, ISIS-SPB does not choose a path as the shortest path if the path includes the device that has the overload bit set.

You can set the LSDB overload bit when the device cannot record complete topology data in the LSDB for insufficient memory or any other problems.

If you do not specify any parameters, the command sets the overload bit immediately. To clear the overload bit, you must use the undo set-overload command.

Examples

# Set the LSDB overload bit.

<Sysname> system-view
[Sysname] spbm
[Sysname-spbm] set-overload