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Configuring BFD
Parameter Description
BFD session status with all neighbors
of the corresponding interface which
are greater than or equal to "2-way"
state
BFD status for the BGP protocol
BFD status for BGP neighbors
BFD status for VRRP protocol
BFD status for a VRRP tracking pol-
icy.
BFD status for a static route.
Quick Steps for Configuring BFD
Configuring BFD involves:
•
Optional: Configuring BFD explicitly on the IP interfaces.
•
Configuring Layer 3 protocols to use BFD (see
Protocols" on page
Note. Configuring a BFD session explicitly with an IP interface name is optional, and must be used if
user defined BFD session parameters need to be applied. All the steps for explicit configuration are
mentioned as optional.
If BFD is not explicitly configured, the default BFD global session parameters (transmit, receive and echo
intervals) are applied to the BFD sessions.
The following steps provide a brief tutorial for configuring a BFD session and related parameters:
1
Configure a BFD session on IP interface using the
-> ip bfd interface
Optional
Configure the BFD session explicitly with an IP interface name if non-default BFD session
:
parameters are required for BFD sessions that must be run separate from the IP interface.
-> ip bfd interface bfd_int_1
2
Optional
Configure a global transmit time interval for all BFD sessions using the
:
command. This command defines a default transmit value that is automatically applied when a BFD
session is created. For example:
-> ip bfd transmit 500
3
Optional
Configure the transmit time interval for a specific BFD session using the
:
transmit
command. The value set with this command overrides the global transmit value configured for
the routing instance. For example:
-> ip bfd interface bfd-vlan-101 transmit 500
OmniSwitch AOS Release 7 Network Configuration Guide
Command
ip ospf interface bfd-state all-
neighbors
ip bgp bfd-state
ip bgp neighbor bfd-state
vrrp bfd-state
vrrp track address bfd-state
ip static-route bfd-state
16-5).
"Quick Steps for Configuring BFD Support for Layer 3
ip bfd interface
command. For example:
March 2011
Quick Steps for Configuring BFD
Default Value/Comments
Enabled
Disabled
Disabled
Disabled
Enabled
Enabled
ip bfd transmit
ip bfd interface
page 16-3
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