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Configuration prerequisites, Configuration procedure, Enabling vrrp traps – H3C Technologies H3C WX3000E Series Wireless Switches User Manual

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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, prolong the
time interval for sending 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 because the backup does not receive any

VRRP advertisements for the specified period of time. To solve this problem, configure the same

interval for sending VRRP advertisements on each router in the VRRP group.

Configuration prerequisites

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

IP address for it.

Configuration procedure

To configure VRRP packet attributes:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter the specified interface

view.

interface interface-type
interface-number

N/A

3.

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 } key

Optional.
Authentication is not performed by
default

4.

Configure the time interval for
the master in the VRRP group

to send VRRP advertisements.

vrrp vrid virtual-router-id timer
advertise adver-interval

Optional.
1 second by default

5.

Disable TTL check on VRRP

packets.

vrrp un-check ttl

Optional.
Enabled by default
You do not need to create a VRRP

group before executing this
command.

Enabling VRRP traps

If VRRP traps are enabled, VRRP generates traps with severity level errors to report its key events to the
information center. You can configure whether to output the traps and trap output destinations at the

information center. For information about configuring the information center, see Network Management

and Monitoring Configuration Guide.
To enable VRRP traps:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enable VRRP traps.

snmp-agent trap enable vrrp
[ authfailure | newmaster ]

Optional.
Enabled by default.