R0106-HP MSR Router Series High Availability Command Reference(V7)

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Mode Detection interval
Control packet mode BFD session in demand
mode
Detection time multiplier of the sender × actual
packet sending interval of the sender
Examples
# Configure the single-hop detection time multiplier as 6 on GigabitEthernet 2/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/0/1
[Sysname-GigabitEthernet2/0/1] bfd detect-multiplier 6
bfd echo enable
Use bfd echo enable to enable the echo packet mode.
Use undo bfd echo enable to restore the default.
Syntax
bfd echo enable
undo bfd echo enable
Default
The echo packet mode is disabled.
Views
Interface view
Predefined user roles
network-admin
Usage guidelines
If you enable the echo packet mode for a BFD session in which control packets are sent and the session
comes up, BFD does the following:
• Periodically sends echo packets to detect link connectivity.
• Decreases the control packet receiving rate at the same time.
Examples
# Enable the echo packet mode on GigabitEthernet 2/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/0/1
[Sysname-GigabitEthernet2/0/1] bfd echo enable
bfd echo-source-ip
Use bfd echo-source-ip to configure the source IP address of BFD echo packets.
Use undo bfd echo-source-ip to remove the configured source IP address of BFD echo packets.
Syntax
bfd echo-source-ip ip-address
undo bfd echo-source-ip