Checking The Configuration - Huawei Quidway S6700 series Configuration Manual

Quidway S6700 Series Ethernet Switches
Configuration Guide - Reliability
l
----End

6.4.3 Checking the Configuration

By viewing the status of an interface tracked by a VRRP backup group, you can check whether
the configurations are successful.
Prerequisite
The configurations of enabling VRRP to track the status of an interface are complete.
Issue 01 (2011-07-15)
interfaces go Down, the priority of the VRRP backup group in the Backup state
can exceed that in the Master state, thus triggering VRRP fast switchover. Thus,
the increase of the priority caused by the down of other BFD sessions or
interfaces has no impact on VRRP fast switchover.
NOTE
You can configure up to eight tracked interfaces on a VRRP group. If an S6700 is the IP address
owner, interfaces of the S6700 cannot be tracked.
For VRRP6, run the following commands:
1. Run:
system-view
The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
3. Run:
vrrp6 vrid virtual-router-id track interface interface-type interface-
number [ increased value-increased | reduced value-reduced ]
The status of the specified interface is tracked.
– By default, when the tracked interface goes Down, the priority of the tracking
VRRP backup group decreases by 10.
– increased value-increased specifies the value by which the priority increases when
the tracked interface goes Down. The value ranges from 1 to 255. The maximum
value of the priority is 254 because 255 is reserved for only the IP address owner.
– reduced value-reduced specifies the value by which the priority decreases when
the tracked interface goes Down. The value ranges from 1 to 255. The lowest
priority is 1. When the priority is decreased to 1, a VRRP Advertisement packet
with priority 0 is sent.. The priority 0 is reserved in the system for special use.
When the backup device receives a VRRP Advertisement packet with the priority
0, it immediately switches to be the master device.
– A VRRP6 backup group is configured to monitor the interface status. When the
monitored interface is configured with an IPv4 address and the status of IPv4
changes, the VRRP6 backup group re-elects the Master; if the monitored interface
is configured with an IPv6 address, when the status of IPv6 changes, the VRRP6
backup group does not re-elect the Master.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6 VRRP and VRRP6 Configuration
226