Alcatel-Lucent 7710 SR OS Configuration Manual page 279

mac
Syntax mac mac-address
no mac
Context config>router>if>vrrp
config>router>if>ipv6>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.
The mac command sets the MAC address used in ARP responses when the virtual router instance is
master. Routing of IP packets with mac-address as the destination MAC is also enabled. The mac
setting must be the same for all virtual routers participating as a virtual router or indeterminate
connectivity by the attached IP hosts will result. All VRRP advertisement messages are transmitted
with mac-address as the source MAC.
The command can be configured in both non-owner and owner vrrp nodal contexts.
The mac command can be executed at any time and takes effect ediately. When the virtual router
MAC on a master virtual router instance changes, a gratuitous ARP is ediately sent with a VRRP
advertisement message. If the virtual router instance is disabled or operating as backup, the gratuitous
ARP and VRRP advertisement message is not sent.
The no form of the command restores the default VRRP MAC address to the virtual router instance.
Default no mac — The virtual router instance uses the default VRRP MAC address derived from the VRID.
Parameters
mac-address — The 48-bit MAC address for the virtual router instance in the form aa:bb:cc:dd:ee:ff
master-int-inherit
Syntax [no] master-int-inherit
Context config>router>if>vrrp
config>router>if>ipv6>vrrp
Description
This command enables the virtual router instance to inherit the master VRRP router's advertisement
interval timer which is used by backup routers to calculate the master down timer.
The master-int-inherit command is only available in the non-owner nodal context and is used to
allow the current virtual router instance master to dictate the master down timer for all backup virtual
routers. The master-int-inherit command has no effect when the virtual router instance is operating
as master.
7710 SR OS Router Configuration Guide
or aa-bb-cc-dd-ee-ff where aa, bb, cc, dd, ee and ff are hexadecimal numbers. Allowed values are
any non-broadcast, non-multicast MAC, and non-IEEE reserved MAC addresses.
VRRP
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