Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 595)

Master and Backup routers
• VRRP - The "Owner" of the IP address of the VRID is the default Master and has the highest priority
(255). The precedence of the Backup routers is determined by their priorities. The default Master is
always the Owner of the IP address of the VRID.
• VRRP-E - The Master and Backup routers are selected based on their priority. You can configure any
of the Layer 3 switches to be the Master by giving it the highest priority. There is no Owner.
VRRP and VRRP-E parameters
Most of the parameters and default values are the same for both protocols.
VRRP and VRRP-E parameters TABLE 125
Parameter Description Default
Protocol The Virtual Router Redundancy Protocol (VRRP) based on RFC
2338 or VRRP-Extended, the Brocade-enhanced implementation of
VRRP. Disabled
NOTE
Only one of the
protocols can be
enabled at a time.
VRRP or VRRP-E
router The Brocade Layer 3 switch active participation as a VRRP or
VRRP-E router. Enabling the protocol does not activate the Layer 3
switch for VRRP or VRRP-E. You must activate the switch as a
VRRP or VRRP-E router after you configure the VRRP or VRRP-E
parameters. Inactive
Virtual Router ID
(VRID) The ID of the virtual router you are creating by configuring multiple
routers to back up an IP interface. You must configure the same
VRID on each router that you want to use to back up the address. None
Virtual Router IP
address This is the address you are backing up.
• VRRP - The virtual router IP address must be a real IP address
configured on the VRID interface on one of the VRRP routers.
This router is the IP address Owner and is the default Master.
• VRRP-E - The virtual router IP address must be in the same
subnet as a real IP address configured on the VRRP-E interface,
but cannot be the same as a real IP address configured on the
interface.
None
VRID MAC
address The source MAC address in VRRP or VRRP-E packets sent from
the VRID interface, and the destination for packets sent to the
VRID:
• VRRP - A virtual MAC address defined as 00-5E-00-00-01-vrid
for IPv4 VRRP, and 00-5E-00-00-02-vrid for VRRP v3. The
Master owns the virtual MAC address.
• VRRP-E - A virtual MAC address defined as 02-E0-52- hash-
value - vrid for IPv4 VRRP-E and IPv6 VRRP-E, where hash-
value is a two-octet hashed value for the IP address and vrid is
the ID of the virtual router.
Not configurable
Master and Backup routers
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