Object Tracking; Object Tracking Overview - Dell C9000 Series Networking Configuration Manual

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IPv4 or IPv6 object tracking is available on Dell Networking OS.

Object tracking allows the Dell Networking operating system (OS) client processes, such as virtual router

redundancy protocol (VRRP), to monitor tracked objects (for example, interface or link status) and take

appropriate action when the state of an object changes.

Object Tracking Configuration

Displaying Tracked Objects

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 IP hosts

Reachability of IPv4 and IPv6 routes

Metric thresholds of IPv4 and IPv6 routes

Tracking of IP Hosts

You can configure client applications, such VRRP, to receive a notification when the state of a tracked object

The following example shows how object tracking is performed. Router A and Router B are both connected

to the internet via interfaces running open shortest pat first (OSPF). Both routers belong to a VRRP group with

a virtual router at 10.0.0.1 on the local area network (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.

You can create a tracked object to monitor the metric of the default route 0.0.0.0/0. After you configure the

default route as a tracked object, you can configure the VRRP group to track the state of the route. In this

way, the VRRP priority of the router with the better metric automatically becomes master of the VRRP group.

Object Tracking