Users Guide

Layer 3 Routing Commands 1658

Default Configuration

By default, there are no tracking objects configured. The default tracking type

is reachability.

Command Mode

Global Configuration mode

User Guidelines

An operation return-code value is maintained by every IP SLA operation.

This return code is interpreted by the associated tracking object. The return

code may return OK, OverThreshold, or Timeout.

Two facets of an IP SLAs operation can be tracked: reachability and state. The

acceptance of the OverThreshold return code is the difference between these

facets. Table 6-2 below shows the comparison between the reachability and

state facets of IP SLAs operations that can be tracked.

Tracking of a maximum of 128 (IPv4 and IPv6 combined) track objects is

supported. If neither of the optional keywords (reachability or state) is

specified in a configured track ip sla CLI command, then the default tracking

type value reachability gets configured.

Command History

Command introduced in version 6.6 firmware.

Example

In the following example, the tracking process is configured to track the state

of IP SLAs operation 5:

Table 6-2. Comparison of Reachability and State Operations

Tracking Return Code Track State

Reachability OK or OverThreshold

Timeout

Down

State OK

Timeout, OverThreshold

Down