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Troubleshooting flowchart
Figure 18 Troubleshooting BFD MAD failure
Solution
To resolve the issue:
1.
Verify that BFD MAD link connections are correct:
If you do not use an intermediate device, verify that each pair of member devices has a
dedicated BFD MAD link.
If you use an intermediate device, verify that each member device has a dedicated BFD
MAD link with the intermediate device.
As a best practice to conserve management Ethernet port resources, use an intermediate
device if you use management Ethernet ports for BFD MAD.
2.
Verify that all physical ports used for BFD MAD are up:
a.
Execute the
display interface
command.
b.
Check the
Current state
field in the command output:
−
If the field displays
Administratively DOWN
for a port, execute the
undo shutdown
command to bring up the port.
−
If the field displays
DOWN
for a port, check the physical link for a link failure.
Correct the settings
No
Yes
End
BFD MAD failure
Resolved?
No
Yes
Contact the
support
Correct the settings
No
Yes
Resolved?
No
Yes
Correct the connections
No
Yes
Resolved?
No
Yes
BFD MAD ports always up?
Identify port-down event cause
and remove the issue
No
Resolved?
No
Yes
Yes
All BFD MAD ports up?
Bring up the ports
No
Resolved?
No
Yes
Yes
BFD MAD VLAN
and Layer 3 interface configured
correctly?
BFD MAD IP addresses
configured correctly?
BFD MAD link connections correct?