3Com MSR 50 manual Flash-flood, Related commands filter-policy export IS-IS view, Level-1 level-2

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Description Use the filter-policy import command to configure IS-IS to filter incoming routing information.

Use the undo filter-policy import command to disable IS-IS from filtering incoming routing information.

IS-IS does not filter incoming routing information by default.

In some cases, only the routing information satisfying certain conditions can be received. You can reference filtering conditions using the filter-policycommand.

Related commands: filter-policy export (IS-IS view).

Examples # Reference ACL 2000 to filter incoming routing information.

<Sysname> system-view

[Sysname] isis

[Sysname-isis-1] filter-policy 2000 import

flash-flood

Syntax	flash-flood [ flood-count flooding-countmax-timer-interval flooding-interval
	[ level-1 level-2 ] ] *
	undo flash-flood [ level-1 level-2 ]
View	IS-IS view
Parameters	flood-countflooding-count: Specifies the maximum number of LSPs to be sent in
	the fast-flooding process, ranging from 1 to 15. The default is 5.
	max-timer-intervalflooding-interval: Specifies the delay interval (in milliseconds)
	between when it is enabled and when it begins, ranging from 10 to 50000. The
	default is 10.
	level-1: Specifies to configure fast-flooding on level-1only.
	level-2: Specifies to configure fast-flooding on level-2only. If no level is
	configured, the fast-flooding will be available on both level-1and level-2by
	default.
Description	Use the flash-floodcommand to enable IS-IS LSP fast flooding and configure
	related parameters, including the maximum number of LSPs to be sent and the
	delay time before flooding.
	Use the undo flash-floodcommand to disable fast-flooding.
	Fast flooding is disabled by default.
	Using this command can speed up LSP flooding that is triggered by topology
	changes, so as to reduce LSDB convergence time.