Adjusting the priority for sending BFD packets changes the sending order in the case of congestion at the interface.
system-view
bfd cfg-name
tos-exp tos-value
tos-value is an integer ranging from 0 to 7.
The default priority is 7.
commit
To change session parameters (by using the min-tx-interval, min-rx-interval, detect-multiplier, tos-exp, wtr, or description command) after a BFD session is created, you must run the commit command. In this case, the configurations can take effect.