Reference Guide

Bidirectional Forwarding Detection (BFD) | 269
Command
History
Related
Commands
debug bfd
c e
Enable BFD debugging.
Syntax
debug bfd {detail | event | packet} {all | interface} [mode] [count number]
Disable BFD debugging using the command no debug bfd {detail | event | packet} {all | interface}
[mode] [count number].
Parameters
Defaults
Disabled
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.7.1.0 Introduced on C-Series
Version 7.5.1.0 Added support for VLAN and port-channel interfaces on E-Series
Version 7.4.1.0 Introduced on E-Series
show bfd counters
Display BFD counter information.
detail
(OPTIONAL) Enter this keyword to display detailed information about BFD packets.
event (OPTIONAL) Enter this keyword to display information about BFD state. The mode
option is not available with this option.
packet (OPTIONAL) Enter the keyword packet to display brief information about control
packets.
all Enter this keyword to enable debugging on all interfaces. The count option is not
available with this option.
interface
Enter one of the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword
gigabitethernet followed
by the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
tengigabitethernet
followed by the slot/port information.
• For a SONET interface, enter the keyword
sonet followed by the slot/port
information.
• For a port-channel interface, enter the keyword
port-channel followed by a
number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale and ExaScale
• For VLAN interfaces, enter the keyword
vlan followed by a number from 1 to
4094. For ExaScale VLAN interfaces, the range is 1-2730 (VLAN IDs can be
0-4093).
mode
(OPTIONAL) Enter one of the following debug transmission modes:
• Enter the keyword
both to display information for both received and sent packets.
• Enter the keyword
rx to display information for received packets.
• Enter the keyword
tx to display information for sent packets.
Default:
both
count number
(OPTIONAL) Enter this keyword followed by the number of debug messages to
display.
Range: 1-65534
Default: Infinite—that is, if a count number is not specified an infinite number of
debug messages will display.