Инструкции По Установке для 3com S7906E

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All the interfaces in the same VPN instance on the same router must work in the same PIM mode. 

 

z 

For details about the ip vpn-instance and route-distinguisher commands, see MPLS L3VPN 

Commands in the MPLS Volume. 

z 

For details about the multicast routing-enable command, see Multicast Routing and Forwarding 

Commands in the IP Multicast Volume. 

 

An RP can be manually configured or dynamically elected through the BSR mechanism. For a large 

PIM network, static RP configuration is a tedious job. Generally, static RP configuration is just a backup 

means for the dynamic RP election mechanism to enhance the robustness and operation manageability 

of a multicast network. 

Configuring a static RP 

If there is only one dynamic RP in a network, manually configuring a static RP can avoid communication 

interruption due to single-point failures and avoid frequent message exchange between C-RPs and the 

BSR.  

Perform this configuration on all the routers in the PIM-SM domain. 

Follow these steps to configure a static RP: 

Enter system view 

— 

Enter public instance PIM view 
or VPN instance PIM view 

pim [ vpn-instance 
vpn-instance-name ] 

— 

Configure a static RP 

static-rp rp-address 
[ acl-number ] [ preferred ] 

Required 

No static RP by default 

 

To enable a static RP to work normally, you must perform this configuration on all the routers in the 

PIM-SM domain and specify the same RP address.  

 

In a PIM-SM domain, you can configure routers that intend to become the RP as C-RPs. The BSR 

collects the C-RP information by receiving the C-RP-Adv messages from C-RPs or auto-RP