3Com S7906E - Switch, Руководство по настройке

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All the interfaces in the same VPN instance on the same router must work in the same PIM mode.
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For details about the ip vpn-instance and route-distinguisher commands, see MPLS L3VPN
Commands in the MPLS Volume .
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For details about the multicast routing-enable command, see Multicast Routing and Forwarding
Commands in the IP Multicast Volume .
Configuring an RP
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:
To do… Use the command… Remarks
Enter system view 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.
Configuring a C-RP
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