VRRP-E
VRRP-E is a Brocade protocol that provides the benets of VRRP without the limitations. VRRP-E is unlike VRRP in the following ways:
• There is no "Owner" router. You do not need to use an IP address congured on one of the Layer 3 switches as the virtual router
ID (VRID), which is the address you are backing up for redundancy. The VRID is independent of the IP interfaces congured in
the Layer 3 switches. As a result, the protocol does not have an "Owner" as VRRP does.
• There is no restriction on which router can be the default Master router. In VRRP, the "Owner" (the Layer 3 switch on which the
IP interface that is used for the VRID is congured) must be the default Master.
Brocade Layer 3 switches congured for VRRP-E can interoperate only with other Brocade Layer 3 switches.
Architectural dierences between VRRP and VRRP-E
The protocols have the following architectural dierences.
Management protocol
• VRRP - VRRP routers send VRRP Hello and Hello messages to IP Multicast address 224.0.0.18.
• VRRP-E - VRRP-E sends messages to destination MAC address 01-00-5E-00-00-02 and destination IP address
224.0.0.2 (the standard IP multicast address for "all routers").
Virtual router IP address (the address you are backing up)
• VRRP - The virtual router IP address is the same as an IP address or virtual interface
congured on one of the Layer 3
switches, which is the "Owner" and becomes the default Master.
• VRRP-E - The virtual router IP address is the gateway address you want to back up, but does not need to be an IP interface
congured on one of the Layer 3 swicth ports or a virtual interface.
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
congure 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.
TABLE 103 VRRP and VRRP-E parameters
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
Inactive
VRRP and VRRP-E parameters
FastIron Ethernet Switch Layer 3 Routing
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