23
Use
undo vrrp
vrid preempt-mode
to disable the preemptive mode for the device in an IPv4
VRRP group.
Use
undo vrrp vrid preempt-mode delay
to restore the default preemption delay.
Syntax
vrrp vrid
virtual-router-id
preempt-mode
[
delay
delay-value
]
undo
vrrp vrid
virtual-router-id
preempt-mode
[
delay
]
Default
The device operates in preemptive mode and the preemption delay is 0 centiseconds.
Views
Interface view
Predefined user roles
network-admin
Parameters
virtual-router-id
: Specifies an IPv4 VRRP group by its virtual router ID. The value range for
the
virtual-router-id
argument is 1 to 255.
delay
delay-value
: Specifies the preemption delay in the range of 0 to 180000 in centiseconds.
Usage guidelines
In non-preemptive mode, the master router acts as the master as long as it operates correctly, even
if a backup is assigned a higher priority later. The non-preemptive mode helps avoid frequent
switchover between the master and backups.
In preemptive mode, a backup sends VRRP advertisements when it detects that it has a higher
priority than the master. Then the backup takes over as the master and the previous master
becomes a backup. This mechanism ensures that the master is always the device with the highest
priority.
You can configure the VRRP preemption delay for the following purposes:
•
Avoid frequent state changes among members in a VRRP group.
•
Provide the backups with enough time to collect information (such as routing information).
A backup does not immediately become the master after it receives an advertisement with a lower
priority than the local priority. Instead, it waits for a period of time before taking over as the master.
Examples
# Enable the preemptive mode for the device in VRRP group 1, and set the preemption delay to 5000
centiseconds.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] vrrp vrid 1 preempt-mode delay 5000
Related commands
display
vrrp
vrrp vrid priority
Use
vrrp
vrid priority
to set the priority of the device in an IPv4 VRRP group.
Use
undo vrrp
vrid priority
to restore the default.
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...
Страница 1649: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
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...
Страница 3240: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 3263: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...