Architectural differences between vrrp and vrrp-e, Management protocol, Master and backup routers – Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 User Manual
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Brocade ICX 6650 Layer 3 Routing Configuration Guide
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Comparison of VRRP and VRRP-E
Architectural differences between VRRP and VRRP-E
The protocols have the following architectural differences.
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
configured 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 configured on one of the Layer 3 switch 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
configure any of the Layer 3 switches to be the Master by giving it the highest priority. There is
no Owner.