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set-overload
Use set-overload to set the overload bit.
Use undo set-overload to clear the overload bit.
Syntax
set-overload [ on-startup [ [ start-from-nbr system-id [ timeout1 [ nbr-timeout ] ] ] | timeout2 ] [ allow
{ external | interlevel } * ]
undo set-overload
Default
The overload bit is not set.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
on-startup: Sets the overload bit upon system startup.
start-from-nbr system-id [ timeout1 [ nbr-timeout ] ]: Starts the nbr-timeout timer when the router begins
to establish the neighbor relationship with the neighbor after system startup. If the neighbor relationship
is formed within the nbr-timeout interval, IS-IS keeps the overload bit set. If not, the bit is cleared. IS-IS
keeps the overload bit set within the timeout1 interval after the neighbor relationship is formed within the
nbr-timeout interval.
• system-id—Specifies the neighbor.
• timeout1—The timeout1 interval is in the range of 5 to 86400 seconds and defaults to 600
seconds.
• nbr-timeout—The timer has an interval from 5 to 86400 seconds. The default is 1200 seconds.
timeout2: Sets the overload bit within the timeout2 interval after system startup. The interval is in the
range of 5 to 86400 seconds and defaults to 600 seconds.
allow: Allows advertising address prefixes. By default, no address prefixes are allowed to be advertised
when the overload bit is set.
external: Allows advertising IP address prefixes redistributed from other routing protocols with the allow
keyword specified.
interlevel: Allows advertising IP address prefixes learned from different IS-IS levels with the allow
keyword specified.
Usage guidelines
If the on-startup keyword is not specified, the command sets the overload bit immediately until the undo
set-overload command is executed.
If the on-startup keyword is specified, IS-IS sets the overload bit upon system startup and keeps it set
within the timeout2 interval.
Examples
# Set overload flag on the current router.
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