3com S7906E Manuel De Montage

 

1-53 

[SwitchC-Vlan-interface300] quit 

[SwitchD] interface vlan-interface 300 

[SwitchD-Vlan-interface300] isis authentication-mode md5 hSec 

[SwitchD-Vlan-interface300] quit 

4)  Configure area authentication. Specify the MD5 authentication mode and password 10Sec on 

Switch A, Switch B and Switch C. 

[SwitchA] isis 1 

[SwitchA-isis-1] area-authentication-mode md5 10Sec 

[SwitchA-isis-1] quit 

[SwitchB] isis 1 

[SwitchB-isis-1] area-authentication-mode md5 10Sec 

[SwitchB-isis-1] quit 

[SwitchC] isis 1 

[SwitchC-isis-1] area-authentication-mode md5 10Sec 

[SwitchC-isis-1] quit 

5)  Configure routing domain authentication. Specify the MD5 authentication mode and password 

1020Sec on Switch C and Switch D. 

[SwitchC] isis 1 

[SwitchC-isis-1] domain-authentication-mode md5 1020Sec 

[SwitchC-isis-1] quit 

[SwitchD] isis 1 

[SwitchD-isis-1] domain-authentication-mode md5 1020Sec 

z 

As shown in 

, Switch A and Switch B are interconnected through a Layer-2 switch. BFD 

is enabled on the switch interfaces. IS-IS is enabled on the switches that are reachable to each 

other at the network layer.  

z 

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

and notify IS-IS of the failure.  

Figure 1-20 Network diagram for BFD configuration on an IS-IS link 

 

 

1)  Configure VLAN interfaces. 

# Configure Switch A.