Reference Guide

Bidirectional Forwarding Detection (BFD) | 283
Command
History
Related
Commands
debug bfd
c e
Enable BFD debugging.
Syntax
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 to 128
E-Series Range: 1 to 255 for TeraScale, and 1 to 512 for ExaScale.
• For VLAN interfaces, enter the keyword vlan followed by a number from
1 to 4094. For ExaScale VLAN interfaces, the range is 1 to 2730 (VLAN
IDs can be 0 to 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 to 65534
Default: Infinite—that is, if a count number is not specified an infinite number
of debug messages will display.