Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 1052

www.dell.com | support.dell.com virtual-address 10.10.10.2 virtual-address 10.10.10.3 virtual-address 10.10.10.10 FTOS(conf-if-gi-1/1-vrid-111)# Track an Interface or Object In previous releases, you could set FTOS to track the state of an interface for a specified virtual group. Starting in release 8.4.1.0, you can track additional objects for a virtual group, such as Layer 3 interfaces (IPv4 and IPv6), IPv4/IPv6 route reachability, and thresholds of IPv4/IPv6 route metrics. For information on how to track supported objects, refer to the Object Tracking chapter. Each VRRP group can track changes in the status of up to 12 interfaces and up to 20 additional objects, which may affect the priority of the VRRP group. If a tracked interface or object goes down, the VRRP group's priority is decreased by a default value of 10 (also known as cost). If the state of a tracked interface or object goes up, the VRRP group's priority is increased by 10. The lowered priority of a VRRP group may trigger an election. Because Master/Backup VRRP routers are selected based on the VRRP group's priority, tracking interfaces and/or objects ensures that the best VRRP router is the Master for a group. In object and interface tracking, the following conditions apply: • The sum of the costs of all tracked interfaces and objects cannot equal or exceed the priority of the VRRP group. • If the VRRP group is configured as the Owner router (priority 255), tracking for the group is disabled, irrespective of the state of the tracked interfaces and objects. The priority of the owner group always remains as 255 and does not change. For a virtual group, you can track the line-protocol state or the routing status of any of the following interfaces with the interface interface parameter: • 1-Gigabit Ethernet: Enter gigabitethernet slot/port in the track interface command (refer to Step 1 below). • 10-Gigabit Ethernet: Enter tengigabitethernet slot/port. • Port channel: Enter port-channel number, where valid port-channel numbers are: • For the C-Series and S-Series, 1 to 128 • For the E-Series: 1 to 255 for TeraScale, and 1 to 512 for ExaScale • SONET: Enter sonet slot/port. • VLAN: Enter vlan vlan-id, where valid VLAN IDs are from 1 to 4094. For a virtual group, you can also track the status of a configured object (track object-id command) by entering its object number. Refer to VRRP Configuration for more information. Note that you can configure a tracked object for a VRRP group (using the track object-id command in INTERFACE-VRID mode) before you actually create the tracked object (using a track object-id command in CONFIGURATION mode). However, no changes in the VRRP group's priority will occur until the tracked object is defined and determined to be down. 1052 | Virtual Router Redundancy Protocol (VRRP)