H3C Technologies H3C SecPath F1000-E - Manual (Page 24)

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Configuring VF Tracking
Configuration prerequisites
Before configuring the VF tracking function, create a VRRP group and configure a virtual IPv6 address for
it.
Configuration procedure
VRRP works in load balancing mode. Suppose that the VF is configured to monitor a track entry. When
the state of the track entry becomes negative or invalid, the weight values of all VFs on the routers
decrease by a specified value; when the state of the track entry becomes positive, the weight values of
all VFs on the routers restore their original values.
Follow these steps to configure VF tracking:
To do… Use the command… Remarks
Enter system view system-view —
Enter the specified interface view
interface interface-type
interface-number
—
Configure the VF to monitor a
specified track entry
vrrp ipv6 vrid virtual-router-id
weight track track-entry-number
[ reduced weight-reduced ] Required
No track entry is specified by
default.
NOTE:
•
You can configure the VF tracking function when VRRP works in either standard protocol mode or load
balancing mode; however, the VF tracking function is effective only when VRRP works in load balancing
mode.
• Do not configure VF tracking on an IP address owner.
• By default, the weight of a VF is 255, and its lower limit of failure is 10.
• If the weight of a VF owner is higher than or equal to the lower limit of failure, the priority of the VF
owner is always 255 and does not change with the weight value. Therefore, if an uplink fails, another VF
takes over the VF owner's work and becomes the AVF only when the weight of the VF owner decreases
a properly specified value and becomes lower than the lower limit of failure.
Configuring VRRP Packet Attributes
Configuration prerequisites
Before configuring the relevant attributes of VRRP packets, create a VRRP group and configure a virtual
IPv6 address.
Configuration procedure
Follow these steps to configure VRRP packet attributes:
To do… Use the command… Remarks
Enter system view system-view —
Enter the specified interface view
interface interface-type
interface-number
—