Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 643
Object Tracking, Object Tracking Overview
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34 Object Tracking c e s IPv4/IPv6 Object Tracking is available on platforms: This chapter covers the following information: • Object Tracking Overview • Object Tracking Configuration • Displaying Tracked Objects Object tracking allows FTOS client processes, such as VRRP, to monitor tracked objects (for example, interface or link status) and take appropriate action when the state of an object changes. Note: In release 8.4.1.0, object tracking is supported only on VRRP. Object Tracking Overview Object tracking allows you to define objects of interest, monitor their state, and report to a client when a change in an object's state occurs. The following tracked objects are supported: • Link status of Layer 2 interfaces • Routing status of Layer 3 interfaces (IPv4 and IPv6) • Reachability of IPv4 and IPv6 routes • Metric thresholds of IPv4 and IPv6 routes In future releases, environmental alarms and available free memory will be supported. You can configure client applications, such VRRP, to receive a notification when the state of a tracked object changes. For example, Figure 34-1 shows how object tracking is performed. Router A and Router B are both connected to the Internet via interfaces running OSPF. Both routers belong to a VRRP group with a virtual router at 10.0.0.1 on the LAN side. Neither Router A nor Router B is the owner of the group. Although Router A and Router B use the same default VRRP priority (100), Router B would normally become the master for the VRRP group because it has a higher IP address. Object Tracking | 643
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