H3C Technologies H3C S7500E Series Switches - Manual (Page 200)

5-55
# Specify the MD5 authentication mode and password hSec on VLAN-interface 300 of Switch D and
on VLAN-interface 300 of Switch C.
[SwitchC] interface vlan-interface 300
[SwitchC-Vlan-interface300] isis authentication-mode md5 hSec
[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
Configuring BFD for IS-IS
Network requirements
z As shown in Figure 5-20 , IS-IS is enabled on Switch A, Switch B and Switch C that are reachable
to each other at the network layer.
z After the link over which Switch A and Switch B communicate through the Layer-2 switch fails,
BFD can quickly detect the failure and notify IS-IS of the failure. Then Switch A and Switch B
communicate through Switch C.
Figure 5-20 Network diagram for BFD configuration on an IS-IS link
Device Interface IP address Device Interface IP address