4
If the peer device does not support obtaining BFD session discriminators through autonegotiation,
you must specify the discriminators on both the local and peer devices. Without the discriminators,
the BFD session cannot come up.
The BFD session discriminators must match on the local and peer devices. For example, if you
configure
bfd detect-interface source-ip
20.1.1.1
discriminator
local
513
remote
514 on the local device, you must configure
bfd detect-interface source-ip
20.1.1.2
discriminator
local
514
remote
513 on the peer device.
The local discriminators of BFD sessions for interfaces on the same device must be different.
Examples
# Create a BFD session to detect the state of VLAN-interface 10, and specify the source IP address
as 20.1.1.1.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] bfd detect-interface source-ip 20.1.1.1
bfd detect-interface first-fail-timer
Use
bfd detect-interface first-fail-timer
to configure the timer that delays reporting
the first BFD session establishment failure to the data link layer.
Use
undo bfd detect-interface first-fail-timer
to restore the default.
Syntax
bfd detect-interface first-fail-timer seconds
undo
bfd detect-interface first-fail-timer
Default
The first BFD session establishment failure is not reported to the data link layer.
Views
Interface view
Predefined user roles
network-admin
Parameters
seconds
: Specifies the timeout time that reports the first BFD session establishment failure to the
data link layer. The value range for this argument is 1 to 10000 seconds.
Usage guidelines
If the BFD session fails to be established when the timer expires, BFD reports the failure to the data
link layer and sets the data link layer state of the interface to DOWN(BFD). This behavior rapidly
identifies the interfaces for which BFD sessions fail to be established. In this case, the BFD session
state is displayed as Down in the
display bfd session
command output. The line protocol state
of the interface is displayed as DOWN(BFD) in the
display interface
command output.
If the local end is configured with the
bfd detect-interface
command, the BFD session for
detecting the local interface state fails to be established when the following conditions exist:
•
The remote end is not configured with the
bfd detect-interface
command.
•
The local and remote ends have mismatching BFD authentication settings.
Examples
# Configure the timer that delays reporting the first BFD session establishment failure as 10 seconds.
Содержание SOHO IE4300
Страница 114: ...ii tftp client ipv6 source 41 tftp client source 41 tftp ipv6 42 tftp server acl 44 tftp server ipv6 acl 44...
Страница 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Страница 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Страница 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Страница 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Страница 396: ...i Contents Bulk interface configuration commands 1 display interface range 1 interface range 1 interface range name 3...
Страница 460: ...i Contents Port isolation commands 1 display port isolate group 1 port isolate enable 2 port isolate group 2...
Страница 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Страница 589: ...60 Examples Enable LLDP for automatic IP phone discovery Sysname system view Sysname voice vlan track lldp...
Страница 602: ...12 Related commands display mvrp statistics...
Страница 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Страница 678: ...9 Related commands reset pppoe relay statistics...
Страница 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Страница 1073: ...i Contents HTTP redirect commands 1 http redirect https port 1 http redirect ssl server policy 1...
Страница 1087: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1340: ...9 Sysname ipv6 route static default preference 120 Related commands display ipv6 routing table protocol...
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Страница 1668: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Страница 2026: ...34 Related commands display mac authentication...
Страница 2028: ...ii...
Страница 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Страница 2308: ...61 ipsec transform set...
Страница 2473: ...i Contents TCP attack prevention commands 1 tcp anti naptha enable 1 tcp check state interval 1 tcp state 2...
Страница 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Страница 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Страница 2541: ...i Contents Crypto engine commands 1 display crypto engine 1 display crypto engine statistics 1 reset crypto engine statistics 3...
Страница 2545: ...i Contents FIPS commands 1 display crypto version 1 display fips status 1 fips mode enable 2 fips self test 4...
Страница 2791: ...14 Sysname track 1 Related commands delay display track...
Страница 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Страница 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...
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