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Configuration prerequisites, Configuration guidelines, Configuration procedure – H3C Technologies H3C MSR 50 User Manual

Page 79: Configuring ipv4 vrrp packet attributes

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71

Step Command

Remarks

69.

Configure VF tracking.

Configure the VF tracking
function to monitor a specified

track entry and specify the

value by which the weight
decreases:

vrrp vrid virtual-router-id weight

track track-entry-number
[ reduced weight-reduced ]

Configure the VF tracking

function to monitor an AVF on a
specified router:

vrrp vrid virtual-router-id track

track-entry-number
forwarder-switchover

member-ip ip-address

Use either method.
The VF tracking function is not
configured by default.

Configuring IPv4 VRRP packet attributes

Configuration prerequisites

Before you configure the relevant attributes of VRRP packets, create a VRRP group and configure a virtual

IP address for it.

Configuration guidelines

You might configure different authentication modes and authentication keys for the VRRP groups on

an interface. However, the members of the same VRRP group must use the same authentication
mode and authentication key.

Excessive traffic might cause a backup to trigger a change of its status because the backup does not
receive any VRRP advertisements for a specified period of time. To solve this problem, increase the

time interval to send VRRP advertisements.

Configuring different intervals for sending VRRP advertisements on the routers in a VRRP group
might cause a backup to trigger a change of its status. This is because the backup does not receive

any VRRP advertisements for a specified period of time. To solve this problem, configure the same
interval for sending VRRP advertisements on each router in the VRRP group.

Configuration procedure

To configure VRRP packet attributes:

Step Command

Remarks

70.

Enter system view.

system-view

N/A

71.

Enter the specified interface

view.

interface interface-type
interface-number

N/A

72.

Configure the authentication
mode and authentication key

when the VRRP groups send

and receive VRRP packets.

vrrp vrid virtual-router-id
authentication-mode { md5 |

simple [ cipher ] } key

Optional.
Authentication is not performed by
default.

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