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Typical Bridge Configuration 311
Transparent Bridging for
Asynchronous Dial-in
Standby
I. Networking Requirements
Configure transparent bridging for asynchronous dial-in standby on two routers.
Thereby, transparent bridging can be implemented by enabling asynchronous
dial-in in case that the serial interfaces through which the routers are directly
connected are failed.
II. Networking Diagram
Please refer to Figure 113.
III. Configuration Procedure
1 Configure Router A
[Router]bridge enable
[Router]bridge stp timer forward-delay 4
[Router]bridge 1 stp ieee
[Router]dialer-rule 1 bridge permit
[Router]interface serial 1
[Router-Serial1]link-protocol ppp
[Router-Serial1]physical-mode async
[Router-Serial1]modem
[Router-Serial1]async mode protocol
[Router-Serial1]dialer enable-legacy
[Router-Serial1]dialer-group 1
[Router-Serial1]dialer route bridge broadcast 660074
[Router-Serial1]bridge-set 1
[Router-Serial1]interface serial 0
[Router-Serial0]standby interface Serial 1
[Router-Serial0]bridge-set 1
[Router-Serial0]interface ethernet0
[Router-Ethernet0]bridge-set 1
[Router-Ethernet0]bridge-set 1 stp disable
2 Configure Router B
[Router]bridge enable
[Router]bridge stp timer forward-delay 4
[Router]bridge 1 stp ieee
[Router]dialer-rule 1 bridge permit
[Router]interface serial 1
[Router-Serial1]link-protocol ppp
[Router-Serial1]physical-mode async
[Router-Serial1]modem
[Router-Serial1]async mode protocol
[Router-Serial1]dialer enable-legacy
[Router-Serial1]dialer-group 1
[Router-Serial1]dialer number
[Router-Serial1]bridge-set 1
[Router-Serial1]interface serial 0
[Router-Serial0]bridge-set 1
[Router-Serial0]interface ethernet0
[Router-Ethernet0]bridge-set 1
[Router-Ethernet0]bridge-set 1 stp disable