3com S7906E Manuel De Montage

 

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As shown in the following figure:  

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Switch A and Switch C are interconnected through a Layer 2 switch. VLAN-interface 100 of the two 

switches runs RIP process 1, BFD is enabled on VLAN-interface 100 of Switch A. 

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Switch A is connected to Switch C through Switch B. VLAN-interface 200 on Switch A runs RIP 

process 2; VLAN-interface 300 on Switch C, and VLAN-interface 200 and VLAN-interface 300 on 

Switch B run RIP process 1.  

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Configure a static route and enable static route redistribution into RIP on Switch C. Switch A learns 

the static route sent by Switch C, the outbound interface of the route is the interface connected to 

the Layer 2 switch.  

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When the link between Switch C and the Layer 2 switch fails, BFD can quickly detect the link failure 

and notify it to RIP, and the BFD session goes down. In response, RIP deletes the neighbor 

relationship with Switch C and the route information received from Switch C. Then, Switch A learns 

the static route sent by Switch C with the outbound interface being the interface connected to 

Switch B.  

Figure 1-8 Network diagram for configuring BFD for RIP (single-hop detection in BFD echo packet 

mode) 

 

 

1)  Configure an IP address for each interface (Omitted) 

2)  Configure RIP basic functions.  

# Configure Switch A. 

[SwitchA] rip 1 

[SwitchA-rip-1] network 192.168.1.0 

[SwitchA-rip-1] quit 

[SwitchA] interface vlan-interface 100 

[SwitchA-Vlan-interface100] rip bfd enable 

[SwitchA-Vlan-interface100] quit 

[SwitchA] rip 2 

[SwitchA-rip-2] network 192.168.2.0 

# Configure Switch B.