Reference Guide

N8406-023 1Gb Intelligent L3 Switch Browser-based Interface Reference Guide 186
The following table describes the Virtual Router Configuration controls:
Table 153 Virtual Router Configuration controls
Control
Descriptions
Virtual Router Identifier (1-255)
Defines the virtual router ID. This is used in conjunction with addr (below) to define a
virtual router on this switch. To create a pool of VRRP-enabled routing devices which
can provide redundancy to each other, each participating VRRP device must be
configured with the same virtual router: one that shares the same vrid and addr
combination.
The vrid for standard virtual routers (where the virtual router IP address is not the
same as any virtual server) can be any integer between 1 and 255. The default value is
1.
All vrid values must be unique within the VLAN to which the virtual router‘s IP
interface belongs.
IP Address
Defines the IP address for this virtual router using dotted decimal notation. This is used
in conjunction with the vrid (above) to configure the same virtual router on each
participating VRRP device. The default address is 0.0.0.0
IP Interface (1-255)
Selects a switch IP interface (between 1 and 255). If the IP interface has the same IP
address as the addr option above, this switch is considered the ―owner‖ of the defined
virtual router. An owner has a special priority of 255 (highest) and will always assume
the role of master router, even if it must preempt another virtual router which has
assumed master routing authority. This preemption occurs even if the preem option
below is disabled. The default value is 1.
Enabled?
Enables or disables this virtual router. The default is disabled.
Priority (1-254)
Defines the election priority bias for this virtual server. This can be any integer between
1 and 254. The default value is 100.
During the master router election process, the routing device with the highest virtual
router priority number wins. If there is a tie, the device with the highest IP interface
address wins. If this virtual router‘s IP address (addr) is the same as the one used by
the IP interface, the priority for this virtual router will automatically be set to 255
(highest).
When priority tracking is used, this base priority value can be modified according to a
number of performance and operational criteria.
Advertisement Interval (1-255)
Defines the time interval between VRRP master advertisements. This can be any
integer between 1 and 255 seconds. The default value is 1.
Owner Preemption?
Enables or disables master preemption. When enabled, if this virtual router is in backup
mode but has a higher priority than the current master, this virtual router will preempt
the lower priority master and assume control. Note that even when preem is disabled,
this virtual router will always preempt any other master if this switch is the owner (the IP
interface address and virtual router addr are the same). By default, this option is
enabled.
Track master virtual routers?
When enabled, the priority for this virtual router will be increased for each virtual router
in master mode on this switch. This is useful for making sure that traffic for any
particular client/server pairing are handled by the same switch, increasing routing and
load balancing efficiency. This command is disabled by default.
Track other IP interfaces?
When enabled, the priority for this virtual router will be increased for each other IP
interface active on this switch. An IP interface is considered active when there is at least
one active port on the same VLAN. This helps elect the virtual routers with the most
available routes as the master. This command is disabled by default.
Track VLAN switch ports?
When enabled, the priority for this virtual router will be increased for each active port on
the same VLAN. A port is considered ―active‖ if it has a link and is forwarding traffic.
This helps elect the virtual routers with the most available ports as the master. This
command is disabled by default.