Specifications

Basic Switch Configuration 189
Chapter 9
Description – An optional description of the VRRP instance that can be used
for administrator convenience.
IP Address – The virtual IP address that will be created and used by the VRRP
instance. This is the IP address that will be redundant – it will be active on the
VRRP master, and will become active on the VRRP backup in the event that
the VRRP master fails. This IP address must be part of the IP subnet
configured on the VLAN, and must be unique – the address cannot be the
loopback address of the switch, or the address of any VLAN interface. This is
the IP address to which Access Points will connect, and should be the
address configured as the LMS for an AP Group (see the Wireless
LAN-Advanced section of this guide for more information.)
Enable Router Pre-emption – When enabled, a switch with a higher VRRP
priority will always become active while a switch with the lower VRRP priority
will always be backup. While this may be desirable in stateless routers, it is
recommended that pre-emption be disabled in Alcatel switches to avoid
excessive interruption to users, or “flapping” if a problematic switch is cycling
up and down.
Priority – Defines which switch will become VRRP master if pre-emption has
been enabled. These values should be different on each member of the
redundant pair. A higher number specifies higher priority. This value must be
between 1 and 254.
Admin State – Can be set either up or down. When down, VRRP is not active,
although the configuration information is retained.
VLAN – Specifies the VLAN on which VRRP is active. If the redundant switch
pair is connected to more than one VLAN, each VLAN should have a VRRP
configuration.