Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 1118

3 VRRPv3 both Interoperable, send VRRPv3 receive both Dell(conf-if-te-0/0-vrid-100)#version 3 You can use the version both command in INTERFACE mode to migrate from VRRPv2 to VRRPv3. When you set the VRRP version to both, the switch sends only VRRPv3 advertisements but can receive VRRPv2 or VRRPv3 packets. To migrate an IPv4 VRRP group from VRRPv2 to VRRPv3: 1. Set the switches with the lowest priority to "both". 2. Set the switch with the highest priority to version to 3. 3. Set all the switches from both to version 3. NOTE: Do not run VRRP version 2 and version 3 in the same group for an extended period of time Example: Migrating an IPv4 VRRP Group from VRRPv2 to VRRPv3 NOTE: Carefully following this procedure, otherwise you might introduce dual master switches issues. To migrate an IPv4 VRRP Group from VRRPv2 to VRRPv3: 1. Set the backup switches to VRRP version to both. Dell_backup_switch1(conf-if-te-0/1-vrid-100)#version both Dell_backup_switch2(conf-if-te-0/2-vrid-100)#version both 2. Set the master switch to VRRP protocol version 3. Dell_master_switch(conf-if-te-0/1-vrid-100)#version 3 3. Set the backup switches to version 3. Dell_backup_switch1(conf-if-te-0/1-vrid-100)#version 3 Dell_backup_switch2(conf-if-te-0/2-vrid-100)#version 3 Assign Virtual IP addresses Virtual routers contain virtual IP addresses configured for that VRRP group (VRID). A VRRP group does not transmit VRRP packets until you assign the Virtual IP address to the VRRP group. For more information, refer to VRRP Implementation. To activate a VRRP group on an interface (so that VRRP group starts transmitting VRRP packets), configure at least one virtual IP address in a VRRP group. The virtual IP address is the IP address of the virtual router and does not require the IP address mask. You can configure up to 12 virtual IP addresses on a single VRRP group (VRID). The following rules apply to virtual IP addresses: • The virtual IP addresses must be in the same subnet as the primary or secondary IP addresses configured on the interface. Though a single VRRP group can contain virtual IP addresses belonging to multiple IP subnets configured on the interface, Dell Networking recommends configuring virtual IP addresses belonging to the same IP subnet for any one VRRP group. - For example, an interface (on which you enable VRRP) contains a primary IP address of 50.1.1.1/24 and a secondary IP address of 60.1.1.1/24. The VRRP group (VRID 1) must contain virtual addresses 1118 Virtual Router Redundancy Protocol (VRRP)