R2511-HP MSR Router Series Layer 3 - IP Routing Command Reference(V5)

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• 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 the default is 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.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] set-overload
summary (IS-IS view)
Use summary to configure a summary route.
Use undo summary to remove a summary route.
Syntax
summary ip-address { mask | mask-length } [ avoid-feedback | generate_null0_route | [ level-1 |
level-1-2 | level-2 ] | tag tag ] *
undo summary ip-address { mask | mask-length } [ level-1 | level-1-2 | level-2 ]
Default
No summarization is configured.
Views
IS-IS view
Default command level
2: System level
Parameters
ip-address: Destination IP address of the summary route.
mask: Mask of the destination IP address, in dotted decimal notation.
mask-length: Specifies the mask length in the range of 0 to 32.
avoid-feedback: Avoids learning summary routes by route calculation.
generate_null0_route: Generate the Null 0 route to avoid routing loops.