3 area filter-list, 4 area nssa, Area filter – PLANET XGS3-24040 User Manual

Page 452: List, Area nssa

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Usage Guide:

The command is only adaptive to the ABR router connected to the stub area or NSSA area.

Example:

Set the default-cost of area 1 to 10.

Switch(config-router)#area 1 default-cost 10

33.3 area filter-list

Command:

area <id> filter-list {access|prefix} {in|out}

no area <id> filter-list {access|prefix} {in|out}

Function:

Configure the filter broadcasting summary routing on the ABR; the “no area <id> filter-list

{access|prefix} {in|out}” command restores the default value.

Parameter:

<id> is the area number which could be shown in digits ranging between 0~4294967295, or as an

IP address; access-list is appointed for use in access, so is prefix-list for prefix;

<name> is the name of the filter, the length of which is between 1-256; in means from other areas to

this area, out means from this area to other areas.

Default:

No filter configured.

Command Mode:

OSPF protocol mode

Usage Guide:

This command is used for restraining routes from specific area from spreading between this area

and other areas.

Example:

Set a filter on the area 1.

Switch(config)#access-list 1 deny 172.22.0.0 0.0.0.255

Switch(config)#access-list 1 permit any

Switch(config)#router ospf 100

Switch(config-router)#area 1 filter-list access 1 in

33.4 area nssa

Command:

area <id> nssa [TRANSLATOR| no-redistribution |DEFAULT-ORIGINATE | no-summary]

no area <id> nssa [TRANSLATOR| no-redistribution | DEFAULT-ORIGINATE | no-summary]

Function:

Set the area to Not-So-Stubby-Area (NSSA) area.

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