Configuring Router Priority, Preemptive Mode And Tracking Function - HP 6125G Configuration Manual

When a router is the IP address owner in a VRRP group, HP recommends you not to use the IP
•
address of the interface (virtual IP address of the VRRP group) to establish a neighbor relationship
with the adjacent router, that is, not to use the network command to enable OSPF on the interface.
For more information about network command, see Layer 3—IP Routing Command Reference.
• When VRRP is operating in load balancing mode, the virtual IP address of a VRRP group cannot be
the same as the IP address of any interface in the VRRP group. In other words, in load balancing
mode, the VRRP group does not have an IP address owner.
A VRRP group is removed after you remove all the virtual IP addresses configured for it. In addition,
•
configurations on that VRRP group do not take effect any longer.
Removal of the VRRP group on the IP address owner causes IP address collision. To solve the
•
collision, modify the IP address of the interface on the IP address owner first and then remove the
VRRP group from the interface.
• The virtual IP address of a VRRP group cannot be 0.0.0.0, 255.255.255.255, loopback addresses,
non class A/B/C addresses or other illegal IP addresses such as 0.0.0.1.
A VRRP group operates properly only when the configured virtual IP address and the interface IP
•
address belong to the same segment and are legal host addresses. If the configured virtual IP
address and the interface IP address do not belong to the same network segment, or the configured
IP address is the network address or network broadcast address of the network segment to which
the interface IP address belongs, the state of the VRRP group is always initialize though you can
perform the configuration successfully. In this case, VRRP does not take effect.
Configuration prerequisites
Before creating a VRRP group and configuring a virtual IP address on an interface, configure an IP
address for the interface and make sure that it is in the same network segment as the virtual IP address
to be configured.
Configuration procedure
To create a VRRP group and configure a virtual IP address:
Step
1. Enter system view.
2. Enter the specified interface
view.
3. Create a VRRP group and
configure a virtual IP address
for the VRRP group.
Configuring router priority, preemptive mode and tracking
function
Configuration guidelines
• The running priority of an IP address owner is always 255 and you do not need to configure it. An
IP address owner always operates in preemptive mode.
If you configure an interface to be tracked or a track entry to be monitored on a router that is the IP
•
address owner in a VRRP group, the configuration does not take effect. If the router is not the IP
address owner in the VRRP group later, the configuration takes effect.
Command
system-view
interface interface-type
interface-number
vrrp vrid virtual-router-id virtual-ip
virtual-address
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Remarks
N/A
N/A
VRRP group is not created by
default.