Command Manual – MulticastH3C S7500E Series Ethernet Switches Chapter 5 MSDP Configuration Commands5-16[Sysname-msdp] peer 125.10.7.6 sa-cache-maximum 1005.1.16 peer sa-policySyntaxpeer peer-address sa-policy { import | export } [ acl acl-number ]undo peer peer-address sa-policy { import | export }ViewMSDP viewParametersimport: Specifies to filter SA messages from the specified MSDP peer.export: Specifies to filter SA messages forwarded to the specified MSDP peer.peer-address: MSDP peer address.acl-number: Advanced ACL number, in the range of 3000 to 3999. If you do not providean ACL number, all SA messages carrying (S, G) entries will be filtered off.DescriptionUse the peer sa-policy command to configure a filtering rule for receiving orforwarding SA messages.Use the undo peer sa-policy command to restore the default setting.By default, SA messages received or to be forwarded are not filtered, namely, all SAmessages are accepted or forwarded.In addition to controlling SA message receiving and forwarding by using this command,you can also configure a filtering rule for creating SA messages using theimport-source command.Related commands: display msdp peer-status, import-source.Examples# Configure a filtering rule so that SA messages will be forwarded to the MSDP peer125.10.7.6 only if they match ACL 3100. system-view[Sysname] acl number 3100[Sysname-acl-adv-3100] rule permit ip source 170.15.0.0 0.0.255.255destination 225.1.0.0 0.0.255.255[Sysname-acl-adv-3100] quit[Sysname] msdp[Sysname-msdp] peer 125.10.7.6 connect-interface vlan-interface 100[Sysname-msdp] peer 125.10.7.6 sa-policy export acl 3100