set protocols bfd peer echo-mode

The set protocols bfd peer echo-mode command can be used to enable BFD echo mode for a single-hop BFD session. This mode is disabled by default.

The delete protocols bfd peer echo-mode command sets the configuration to the default value.

NOTEs:

Echo function is only supported in single-hop BFD case.
BFD echo mode is incompatible with that on other vendors, that is, echo mode can work only between PICOS switches.

Command Syntax

set protocols bfd [vrf <vrf-name>] [interface<interface-name>] peer<peer-ip> echo-mode

Parameter

Parameter	Description
vrf <vrf-name>	Optional. Specifies a VRF name. The value is a string. It’s a user-defined VRF set by the command set ip vrf <vrf-name> [description <string>].
interface<interface-name>	Optional. Specifies the egress interface for BFD packets. The value is an L3 interface that can be the VLAN interface name, the loopback interface name, the routed interface or the sub-interface name. The value is a string. If not specified, the system will search the route table for the outgoing interface.
peer <peer-ip>	Specifies the peer for a BFD session. The value is an IPv4 or IPv6 address.

Usage Guidelines

It is recommended that the transmission interval of control packets to be increased after enabling echo-mode to reduce bandwidth usage. For example: transmit-interval 2000.
Echo mode is not supported on multi-hop setups.

Example

Enable BFD echo mode for BFD peer 2.2.2.2.

admin@Xorplus# set protocols bfd peer 2.2.2.2 echo-mode
admin@Xorplus# commit