Cabletron Systems EMM-E6 manual Setting Repeater Alarms, Broadcast, Alarm Configuration

Alarm Configuration

Alignment	If this check box is selected, all misaligned packets will
	be included in calculating the overall percentage of
	errors. A misaligned packet is one with an non-integral
	number of bytes; these are also sometimes referred to as
	framing errors.
Runts	If this check box is selected, the number of runt packets
	will be included in calculating the overall percentage of
	errors. A runt packet is one that is less than the minimum
	Ethernet frame size of 64 bytes.
Giants	If this check box is selected, the number of giant packets
	will be included in calculating the overall percentage of
	errors. A giant packet exceeds the maximum Ethernet
	frame size of 1518 bytes (excluding the preamble).
OOW Collisions	If this check box is selected, all collisions out of the
	standard collision window (51.2∝s) will be included in
	calculating the overall percentage of errors. Out-of-
	window collisions are typically caused by faulty network
	design.

The CARGO description displayed in the alarm type list is an acronym representing the available error types: C = CRC, A = Alignment, R = Runts, G = Giants, O = OOW Collisions.This mask will only display the letters corresponding to the error types you have chosen to include in the overall percentage of errors.

Broadcast

The broadcasts threshold determines the number of broadcast packets that must be processed by the repeater, module, or port within the user-defined timebase before an alarm is reached. Allowable values are 1 to ≈ 4 billion.

Setting Repeater Alarms

A repeater alarm is based on the combined conditions of a hub network. You can set alarms for error levels (for all errors or just specific types of errors), broadcast packet traffic, data traffic, and collisions.

NOTE

If an alarm type is not supported by your device the alarm configuration options of this type will be grayed out.

3-4 Setting Repeater Alarms