1-12z Before grouping multiple routers into an MSDP mesh group, make sure that these routers areinterconnected with one another.z If you configure more than one mesh group name on an MSDP peer, only the last configuration iseffective.Configuring MSDP Peer Connection ControlMSDP peers are interconnected over TCP (port number 639). You can flexibly control sessionsbetween MSDP peers by manually deactivating and reactivating the MSDP peering connections. Whenthe connection between two MSDP peers is deactivated, SA messages will no longer be deliveredbetween them, and the TCP connection is closed without any connection setup retry, but theconfiguration information will remain unchanged.When a new MSDP peer is created, or when a previously deactivated MSDP peer connection isreactivated, or when a previously failed MSDP peer attempts to resume operation, a TCP connection isrequired. You can flexibly adjust the interval between MSDP peering connection retries.Follow these steps to configure MSDP peer connection control:To do... Use the command... RemarksEnter system view system-view —Enter public instance MSDPview or VPN instance MSDPviewmsdp [ vpn-instancevpn-instance-name ] —Deactivate an MSDP peer shutdown peer-address OptionalActive by defaultConfigure the interval betweenMSDP peer connection retries timer retry interval Optional30 seconds by defaultConfiguring SA Messages Related ParametersConfiguration PrerequisitesBefore configuring SA message delivery, complete the following tasks:z Configure any unicast routing protocol so that all devices in the domain are interoperable at thenetwork layer.z Configuring basic functions of MSDPBefore configuring SA message delivery, prepare the following data:z ACL rules for filtering SA request messagesz ACL rules as SA message creation rulesz ACL rules for filtering SA messages to be received and forwarded
