3
Syntax
bfd detect-interface source-ip
ip-address
[
discriminator
local
local-value
remote
remote-value
] [
template
template-name
]
undo bfd detect-interface
Default
No BFD session is created for detecting the local interface state.
Views
Interface view
Predefined user roles
network-admin
Parameters
ip-address
: Specifies the source IP address for BFD control packets.
discriminator
: Specifies BFD session discriminators. If you do not specify discriminators, the
device obtains BFD session discriminators through autonegotiation.
local
local-value
: Specifies the local discriminator. The value range for the
local-value
argument is 97 to 128.
remote
remote-value
: Specifies the remote discriminator in the range of 1 to 4294967295.
template
template-name
: Specifies a template by its name, a case-sensitive string of 1 to 63
characters. If you do not specify a template, the BFD session uses the BFD parameters configured in
interface view.
Usage guidelines
This command implements fast collaboration between interface state and BFD session state. When
BFD detects a link fault, it sets the link layer protocol state to DOWN(BFD). This behavior helps
applications relying on the link layer protocol state achieve fast convergence.
The source IP address of control packets is specified manually, and the destination IP address is
fixed at 224.0.0.184. As a best practice, specify the IP address of the interface as the source IP
address. If the interface does not have an IP address, specify a unicast IP address other than 0.0.0.0
as the source IP address.
You can associate the state of the following interfaces with BFD:
•
Layer 2 Ethernet interfaces.
•
Member ports in a Layer 2 aggregation group.
•
VLAN interfaces.
•
Layer 2 aggregate interfaces.
This command must be executed on both ends of the link for a BFD session to be established.
If you execute both the
bfd detect-interface
and
bfd echo enable
commands for an
interface, only the
bfd detect-interface
command takes effect.
For BFD detection to take effect, do not execute this command on both a Layer 2 Ethernet interface
and the VLAN interface created for the VLAN to which the Layer 2 Ethernet interface is assigned.
For BFD detection to take effect, do not execute this command on the following interfaces at the
same time:
•
A Layer 2 aggregate interface.
•
A member port of the Layer 2 aggregate interface.
•
The VLAN interface to which the Layer 2 aggregate interface belongs.
Summary of Contents for SOHO IE4300
Page 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Page 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Page 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Page 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Page 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Page 602: ...12 Related commands display mvrp statistics...
Page 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Page 678: ...9 Related commands reset pppoe relay statistics...
Page 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Page 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Page 2026: ...34 Related commands display mac authentication...
Page 2028: ...ii...
Page 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Page 2308: ...61 ipsec transform set...
Page 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Page 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Page 2791: ...14 Sysname track 1 Related commands delay display track...
Page 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Page 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...