Reference Guide

• For a port-channel interface, enter the keyword port-
channel and then enter a number. For the C-Series, the
range is 1 to 128. For the E-Series, the range is 1 to 255 for
TeraScale and 1 to 512 for ExaScale.
• For VLAN interfaces, enter the keyword vlan and then enter
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.
The default is both.
count number (OPTIONAL) Enter the keywords count number followed by the
number of debug messages to display. The range is 1 to 65534. The
default is
Infinite—that is, if a count number is not specified, an
infinite number of debug messages display.
Defaults Disabled
Command Modes EXEC Privilege
Command History
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the C-Series.
Version 7.5.1.0 Added support for VLAN and port-channel interfaces on the E-Series.
Version 7.4.1.0 Introduced on the E-Series.
Usage
Information
Because BFD can potentially transmit 20 packets per interface, you must restrict debugging
information.
ip route bfd
Enable BFD for all neighbors configured through static routes.
C-Series, E-Series
Syntax
ip route bfd [interval interval min_rx min_rx multiplier value
role {active | passive}]
To disable BFD for all neighbors configured through static routes, use the no ip route
bfd [interval interval min_rx min_rx multiplier value role
{active | passive}] command.
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