The Ethernet Interface/Port Performance threshold setting configures the monitoring of an Ethernet network adapter’s performance characteristics. Parameters in this setting control the notification of these faults:

  • High Broadcast Rate

  • High Collision Rate

  • High Discard Rate

  • High Queue Drop Rate

  • High Error Rate

  • High Utilization

    One other parameter in this setting determines whether the IP Performance Manager analyzes subinterfaces, which are interfaces LayeredOver physical interfaces. For example, a physical interface in a Frame Relay or ATM network is configured with multiple virtual circuits, and each virtual circuit is associated with a subinterface.

    Note:

    A subinterface, similar to an interface, is an instance of the Interface class.

    Default values for the Ethernet Interface/Port Performance threshold setting lists the Ethernet Interface/Port Performance threshold setting parameters.

Table 1. Default values for the Ethernet Interface/Port Performance threshold setting

Parameter

Default Value

Description

AnalysisModeOfSubInterface-Performance

ENABLED,DISABLED

Default: DISABLED

When enabled, the IP Performance Manager analyzes the performance of all subinterfaces of all objects in the threshold group.

BroadcastThreshold

0 to 100%

Default: 15%

Upper threshold for broadcast traffic, expressed as a percentage of the total bandwidth.

CollisionThreshold

0 to 100%

Default: 10%

Upper threshold for collisions, expressed as a percentage of the total number of output packets.

DiscardThreshold

0 to 100%

Default: 5%

Upper threshold for dropped packets, expressed as a percentage of the total number of packets.

ErrorThreshold

0 to 100%

Default: 10%

Upper threshold for packet errors, expressed as a percentage of the total number of packets.

MinimumTrafficThreshold

0 to 100%

Default: 2%

Minimum packet rate for a network adapter, expressed as a percentage of total bandwidth. Value can be any number between 0.1 and 100.0. For example, 0.2 is a valid value.

QueueDropThreshold

0 to 100%

Default: 1%

Acceptable percentage of packets that are dropped because of full queues, expressed as a percentage of the total number of packets.

UtilizationThreshold

0 to 100%

Default: 40%

Upper threshold for link utilization, expressed as a percentage of the total bandwidth.