Dell N1100-ON, Reference Manual

Page: 1202 / 2332

Layer 3 Routing Commands
1202
Command Mode
Global Configuration
User Guidelines
BFD supports fast detection of forwarding failures on a routing interface.
BFD provides an advantage for forwarding plane failure detection over that
provided by the individual protocols, each having different hello protocol
timers and detection periods.
The BFD feature provides notification to BGP or OSPF when an interface is
detected to not be in a forwarding state. No other routing protocols are
supported.
BFD is supported in the default VRF only.
BFD should be configured on routed interfaces only. BFD should not be
configured on mirrored ports or on interfaces enabled for IEEE 802.1x.
BFD is supported across link aggregation groups, but does not detect
individual LAG member link failure.
BFD does not operate on the out-of-band interface.
The
no feature bfd command does not remove administrator-supplied
configuration.
A BFD session is created per VLAN routing interface. On trunk ports,
multiple BFD sessions may be established.
Command History
Introduced in version 6.2.0.1 firmware.
Example
console# configure
console(config)# feature bfd
console(config)# exit
bfd echo
This command enables BFD echo mode on an interface. Use the no form of
the command to disable BFD echo mode.