H3C S5820X Series Command Reference Manual

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H3C S5820X Series Command Reference Manual Manual pdf 175 page image

5-29IS-IS does not filter routes calculated from received LSPs by default.Note that if you want to reference an advanced ACL (with a number from 3000 to 3999) in thecommand or in the route policy, the ACL should be configured with the rule [ rule-id ] { deny | permit }ip source sour-addr sour-wildcard command to deny/permit a route with the specified destination, orwith the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addrdest-wildcard command to deny/permit a route with the specified destination and mask. The sourcekeyword specifies the destination address of a route while the destination keyword specifies thesubnet mask of the route (the subnet mask must be valid; otherwise, the configuration is ineffective).Related commands: filter-policy export.Examples# Reference ACL 2000 to filter routes calculated from received LSPs. system-view[Sysname] acl number 2000[Sysname-acl-basic-2000] rule deny source 192.168.10.0 0.0.0.255[Sysname-acl-basic-2000] quit[Sysname] isis 1[Sysname-isis-1] filter-policy 2000 import# Configure ACL 3000 to permit only route 113.0.0.0/16 to pass, and reference ACL 3000 to filterroutes calculated from received LSPs. system-view[Sysname] acl number 3000[Sysname-acl-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0[Sysname-acl-adv-3000] rule 100 deny ip[Sysname-acl-adv-3000] quit[Sysname] isis 1[Sysname-isis 1] filter-policy 3000 importflash-floodSyntaxflash-flood [ flood-count flooding-count | max-timer-interval flooding-interval | [ level-1 | level-2 ] ] *undo flash-flood [ level-1 | level-2 ]ViewIS-IS viewDefault Level2: System levelParametersflood-count flooding-count: Specifies the maximum number of LSPs to be flooded before the nextSPF calculation, ranging from 1 to 15. The default is 5.max-timer-interval flooding-interval: Specifies the delay (in milliseconds) of the flash flooding,ranging from 10 to 50000. The default is 10.level-1: Enables flash flooding for level-1.level-2: Enables flash flooding for level-2.