Ruijie RG-S29 Series, Справочник по командам

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Command Reference OSPFv2 Commands
Parameter
Description
Parameter Description
access-list-number | name Uses the ACL filtering rule.
gateway prefix-list-name
Uses the gateway filtering rule.
Prefix prefix-list-name Uses the prefix-list filtering rule.
route-map route-map-name Uses the route-map filtering rule.
interface-type
interface-number
Configures the LSA route filtering on the interface.
Defaults
No filtering is configured by default.
Command
Mode Routing process configuration mode
Usage Guide This configuration filters the received LSAs, and only those matching the filtering conditions are
involved in the Shortest Path First (SPF) calculation to generate the corresponding routes. It does not
affect the link status database or the route table of the neighbors. It only affects the routing entries
calculated by local OSPF. This function is used to control routes that enter the ABR or ASBR.
The following route-map rules will be supported if the route-map parameter is configured:
match interface
match ip address
match ip address prefix-list
match ip next-hop
match ip next-hop prefix-list
match metric
match route-type
match tag
Filtering routes by using the distribute-list in command affects forwarding of local routes, but does
not affect route computation based on LSAs. Therefore, if route filtering is configured on the ABR,
Type 3 LSAs will still be generated and advertised to other areas because routes can still be
computed based on LSAs. As a result, black-hole routes are generated. In this case, you can run the
area filter-list
or
area range (containing the not-advertise parameter) command on the ABR to
prevent generation of black-hole routes.
Configuration
Examples
The following example configures LSA filtering.
Ruijie(config)# access-list3permit 172.16.0.00.0.127.255
Ruijie(config)# router ospf 25
Ruijie(config-router)# distribute-list 3 in ethernet 0/1
Related
Commands
Command Description
distribute-list out Filters redistribution routes.