Инструкции По Установке для 3com S7906E

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After a BGP peer is configured with the peer connect-interface command, the MTI interface 
automatically obtains the connect-interface  address and uses it as its own IP address. This IP 
address cannot be used in the VPNs network any more; otherwise the MTI interface will fail to 
obtain an IP address. When configuring multiple BGP peers on the same device, you must specify 
the same connect-interface address for these BGP peers; otherwise the MTI interface will also fail 
to obtain an IP address, either. For details about the peer connect-interface command, refer to 
BGP Commands in the IP Routing Volume
The MTI interface becomes up only after it obtains an IP address. On S7900E series Ethernet 
switches, in addition, you need first to use the service-loopback group command to configure a 
multicast-tunnel type service loopback group before an MTI interface can be brought up. For 
details about the service-loopback group command, refer to Service Lookback Commands in the 
Access Volume.  
PIM on the MTI interface takes effect only after PIM is enabled on at least one interface of the VPN 
instance; when PIM is disabled on all the interfaces of the VPN instance, PIM on the MTI interface 
is disabled simultaneously.  
 
Configuring BGP MDT 
If PIM-SSM is running in the public network, you need to configure BGP MDT.  
Configuration Prerequisites 
Before configuring BGP MDT, complete the following tasks: 
Configure MPLS L3VPN 
Configure basic BGP functions 
Before configuring BGP MDT, prepare the following data: 
Route reflector cluster ID 
Configuring BGP MDT Peers or Peer Groups 
With BGP MDT peers or peer groups configured, a PE exchanges the BGP MDT routing information 
with other PEs to obtain their addresses and thus establish a share-MDT.  
Follow these steps to configure BGP MDT peers or peer groups: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter BGP view 
bgp as-number 
— 
Enter BGP MDT 
sub-address family view 
ipv4-family mdt 
— 
Enable a BGP MDT peer 
or peer group 
peer group-name | ip-address } 
enable 
Required 
Disabled by default.