3com S7906E Instruccion De Instalación
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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.
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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.
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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:
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Configure MPLS L3VPN
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Configure basic BGP functions
Before configuring BGP MDT, prepare the following data:
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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
sub-address family view
ipv4-family mdt
—
Enable a BGP MDT peer
or peer group
or peer group
peer { group-name | ip-address }
enable
enable
Required
Disabled by default.