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Configuration Commands
Page 232 7750 SR OS Router Configuration Guide
Parent Primary IP Address Changed — When a virtual router IP address is set and the
associated parent IP interface IP address is changed, the new parent IP interface IP address is
evaluated to ensure it meets the association rules defined in Owner Virtual Router IP Address
Parental Association or Non-Owner Virtual Router IP Address Parental Association. If the
association check fails, the parental IP address change is not allowed. If the parental IP address
change fails, the previously configured IP address definition remains in effect.
Only the primary parent IP address can be changed. Secondary addresses must be removed before the
new IP address can be added. Parent Primary or Secondary IP Address Removal explains IP
address removal conditions.
Parent Primary or Secondary IP Address Removal — When a virtual router IP address is
successfully set, but removing the associated parent IP interface IP address is attempted and fails. All
virtual router IP addresses associated with the parental IP interface IP address must be deleted prior
to removing the parental IP address. This includes virtual router IP address associations from
multiple virtual router instances on the IP interface.
Default no backup - No virtual router IP address is assigned.
Parameters ip-address — The virtual router IP address expressed in dotted decimal notation. The IP virtual router
IP address must be in the same subnet of the parental IP interface IP address or equal to one of
the primary or secondary IP addresses for owner virtual router instances.
Values 1.0.0.1 - 223.255.255.254
init-delay
Syntax init-delay seconds
no init-delay
Context config>router>if>vrrp
Description This command configures a VRRP initialization delay timer.
Parameters seconds — Specifies the initialization delay timer for VRRP, in seconds.
Values 1 — 65535
mac
Syntax mac mac-addr
no mac
Context config>router>if>vrrp
Description This command sets an explicit MAC address used by the virtual router instance overriding the VRRP
default derived from the VRID.
Changing the default MAC address is useful when an existing HSRP or other non-VRRP default
MAC is in use by the IP hosts using the virtual router IP address. Many hosts do not monitor
unessential ARPs and continue to use the cached non-VRRP MAC address after the virtual router
becomes master of the host’s gateway address.