# Configure Router A.
<RouterA> system-view
[RouterA] isis
[RouterA-isis-1] network-entity 10.0000.0000.0001.00
[RouterA-isis-1] quit
[RouterA] interface gigabitethernet 2/1/1
[RouterA-GigabitEthernet2/1/1] isis enable
[RouterA-GigabitEthernet2/1/1] quit
[RouterA] interface gigabitethernet 2/1/2
[RouterA-GigabitEthernet2/1/2] isis enable
[RouterA-GigabitEthernet2/1/2] quit
# Configure Router B.
<RouterB> system-view
[RouterB] isis
[RouterB-isis-1] network-entity 10.0000.0000.0002.00
[RouterB-isis-1] quit
[RouterB] interface gigabitethernet 2/1/1
[RouterB-GigabitEthernet2/1/1] isis enable
[RouterB-GigabitEthernet2/1/1] quit
[RouterB] interface gigabitethernet 2/1/2
[RouterB-GigabitEthernet2/1/2] isis enable
[RouterB-GigabitEthernet2/1/2] quit
# Configure Router C.
<RouterC> system-view
[RouterC] isis
[RouterC-isis-1] network-entity 10.0000.0000.0003.00
[RouterC-isis-1] quit
[RouterC] interface gigabitethernet 2/1/1
[RouterC-GigabitEthernet2/1/1] isis enable
[RouterC-GigabitEthernet2/1/1] quit
[RouterC] interface gigabitethernet 2/1/2
[RouterC-GigabitEthernet2/1/2] isis enable
[RouterC-GigabitEthernet2/1/2] quit
Configure BFD functions:
3.
# Enable BFD on Router A and configure BFD parameters.
[RouterA] bfd session init-mode active
[RouterA] interface gigabitethernet 2/1/1
[RouterA-GigabitEthernet2/1/1] isis bfd enable
[RouterA-GigabitEthernet2/1/1] bfd min-receive-interval 500
[RouterA-GigabitEthernet2/1/1] bfd min-transmit-interval 500
[RouterA-GigabitEthernet2/1/1] bfd detect-multiplier 7
# Enable BFD on Router B and configure BFD parameters.
[RouterB] bfd session init-mode active
[RouterB] interface gigabitethernet 2/1/1
[RouterB-GigabitEthernet2/1/1] isis bfd enable
[RouterB-GigabitEthernet2/1/1] bfd min-receive-interval 500
[RouterB-GigabitEthernet2/1/1] bfd min-transmit-interval 500
[RouterB-GigabitEthernet2/1/1] bfd detect-multiplier 8
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