database-filter peer (OSPF view)
Use database-filter peer to filter LSAs for the specified P2MP neighbor.
Use undo database-filter peer to restore the default.
Syntax
database-filter peer ip-address { all | { ase [ acl ipv4-acl-number ] | nssa [ acl ipv4-acl-number ] | summary [ acl ipv4-acl-number ] } * }
undo database-filter peer ip-address
Default
The LSAs for the specified P2MP neighbor are not filtered.
Views
OSPF view
Predefined user roles
network-admin
Parameters
ip-address: Specifies a P2MP neighbor by its IP address.
all: Filters all LSAs except the Grace LSAs.
ase: Filters Type-5 LSAs.
nssa: Filters Type-7 LSAs.
summary: Filters Type-3 LSAs.
acl ipv4-acl-number: Specifies an IPv4 ACL by its number in the range of 2000 to 3999.
Usage guidelines
On an P2MP network, a router might have multiple OSPF neighbors with the P2MP type. Use this command to prevent the router from sending LSAs to the specified neighbor.
To use an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using one of the following methods:
To deny/permit LSAs with the specified link state ID, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard command.
To deny/permit LSAs with the specified link state ID and mask, use the rule [ rule-id ] { deny | permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.
The source keyword specifies the link state ID of an LSA and the destination keyword specifies the subnet mask of the LSA. For the mask configuration to take effect, specify a contiguous subnet mask.
If the specified neighbor has already received an LSA, the LSA still exists in the LSDB of the neighbor after you execute the command.
Examples
# Filter all LSAs (except the Grace LSAs) for the P2MP neighbor with the IP address 121.20.20.121.
<Sysname> system-view [Sysname] ospf 1 [Sysname-ospf-1] database-filter peer 121.20.20.121 all
# Configure advanced ACL 3000 to filter Type-3 LSAs for the P2MP neighbor with the IP address 121.20.20.121.
<Sysname> system-view [Sysname] acl advanced 3000 [Sysname-acl-ipv4-adv-3000]rule 10 deny ip source 121.20.0.0 0 destination 255.255.0.0 0 [Sysname-acl-ipv4-adv-3000] rule 100 permit ip [Sysname-acl-ipv4-adv-3000] quit [Sysname] ospf 1 [Sysname-ospf-1] database-filter peer 121.20.20.121 summary acl 3000
Related commands
ospf database-filter