Track Layer 2 Interfaces; Track Layer 3 Interfaces; Track Ipv4 And Ipv6 Routes - Dell S4048–ON Configuration Manual

S-series 10gbe switches

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Figure 100. Object Tracking Example

When you configure a tracked object, such as an IPv4/IPv6 a route or interface, you specify an object number to identify the object.

Optionally, you can also specify:

UP and DOWN thresholds used to report changes in a route metric.

A time delay before changes in a tracked object's state are reported to a client.

Track Layer 2 Interfaces

You can create an object to track the line-protocol state of a Layer 2 interface. In this type of object tracking, the link-level

operational status (UP or DOWN) of the interface is monitored.

When the link-level status goes down, the tracked resource status is considered to be DOWN; if the link-level status goes up, the

tracked resource status is considered to be UP. For logical interfaces, such as port-channels or virtual local area networks (VLANs),

the link-protocol status is considered to be UP if any physical interface under the logical interface is UP.

You can create an object that tracks the Layer 3 state (IPv4 or IPv6 routing status) of an interface.

The Layer 3 status of an interface is UP only if the Layer 2 status of the interface is UP and the interface has a valid IP address.

The Layer 3 status of an interface goes DOWN when its Layer 2 status goes down or the IP address is removed from the routing

You can create an object that tracks an IPv4 or IPv6 route entry in the routing table.

Specify a tracked route by its IPv4 or IPv6 address and prefix-length. Optionally specify a tracked route by a virtual routing and

forwarding (VRF) instance name if the route to be tracked is part of a VRF. The next-hop address is not part of the definition of the

tracked object.

Object Tracking