Configuring Vf Tracking; Configuring Ipv6 Vrrp Packet Attributes - HP 5900 Series Configuration Manual

Configuring VF tracking

You can configure VF tracking in both standard mode and load balancing mode, but the function takes
effect only in load balancing mode.
In load balancing mode, you can configure the VFs in a VRRP group to monitor a track entry. When the
state of the track entry transits to Negative, the weights of all VFs in the VRRP group on the router
decrease by a specific value. When the state of the track entry transits to Positive or Notready, the
original weights of the VFs restore. If you configure the VF tracking function on an LVF to monitor its
corresponding AVF on a specified router, the LVF can take over immediately when the status of the track
entry becomes negative, to ensure uninterrupted network communications.
Configuration guidelines
By default, the weight of a VF is 255, and its lower limit of failure is 10.
•
When the weight of a VF owner is higher than or equal to the lower limit of failure, its priority is
•
always 255 and does not change with the weight. To guarantee that an LVF can take over the VF
owner as the AVF when the upstream link of the VF owner fails, the reduced weight for the VF owner
must be higher than 245 so the weight of the VF owner can drop below the lower limit of failure.
Configuration procedure
To configure VF tracking:
Step
1. Enter system view.
2. Enter interface view.
3. Configure VF tracking.

Configuring IPv6 VRRP packet attributes

This section describes how to configure IPv6 VRRP packet attributes.
Configuration guidelines
• The routers in an IPv6 VRRP group can have different intervals for sending VRRP advertisements. The
master in the VRRP group sends VRRP advertisements at the specified interval and carries the
interval attribute in the advertisements. After a backup receives the advertisement, it records the
interval in the advertisement. If the backup does not receive a new VRRP advertisement from the
Command
system-view
interface interface-type
interface-number
•
Configure the VFs in a VRRP
group to monitor a track entry
and configure the reduced
weight:
vrrp ipv6 vrid virtual-router-id
weight track track-entry-number
[ reduced weight-reduced ]
•
Configure an LVF to monitor an
AVF on the specified router:
vrrp ipv6 vrid virtual-router-id
track track-entry-number
forwarder-switchover
member-ip ipv6-address
87
Remarks
N/A
N/A
Use either approach.
By default, the VF tracking function
is not configured.