3Com MSR 50 Series Configuration Manual page 419

Network diagram
Figure 119 Network diagram for bridging with FR sub-interface support
Host A
Eth1 /0
S2/0
Router A
Eth1/1
Host C
Configuration procedure
1 Configure Router A
<RouterA> system-view
[RouterA] bridge enable
[RouterA] bridge 1 enable
[RouterA] bridge 2 enable
[RouterA] interface ethernet 1/0
[RouterA-Ethernet1/0] bridge-set 1
[RouterA-Ethernet1/0] quit
[RouterA] interface ethernet 1/1
[RouterA-Ethernet1/1] bridge-set 2
[RouterA-Ethernet1/1] quit
[RouterA] interface serial 2/0
[RouterA-Serial2/0] link-protocol fr
[RouterA-Serial2/0] quit
[RouterA] interface serial 2/0.1
[RouterA-Serial2/0.1] fr map bridge 50 broadcast
[RouterA-Serial2/0.1] bridge-set 1
[RouterA-Serial2/0.1] quit
[RouterA] interface serial 2/0.2
[RouterA-Serial2/0.2] fr map bridge 60 broadcast
[RouterA-Serial2/0.2] bridge-set 2
2 Configure Router B
<RouterB> system-view
[RouterB] bridge enable
[RouterB] bridge 1 enable
[RouterB] bridge 2 enable
[RouterB] interface ethernet 1/0
[RouterB-Ethernet1/0] bridge-set 1
[RouterB-Ethernet1/0] quit
[RouterB] interface ethernet 1/1
[RouterB-Ethernet1/1] bridge-set 2
[RouterB-Ethernet1/1] quit
[RouterB] interface serial 2/0
[RouterB-Serial2/0] link-protocol fr
[RouterB-Serial2/0] fr interface-type dce
Transparent Bridging Configuration Examples
Host B
Eth1/0
S2/0
Router B
Eth1/1
Host D
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