Cabletron Systems Spectrum EMM-E6 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide User guide

Contents

Cabletron Systems Spectrum EMM-E6 User Manual Manual pdf 54 page image

Alarm Configuration3-4Setting Repeater AlarmsAlignment If this check box is selected, all misaligned packets willbe included in calculating the overall percentage oferrors. A misaligned packet is one with an non-integralnumber of bytes; these are also sometimes referred to asframing errors.Runts If this check box is selected, the number of runt packetswill be included in calculating the overall percentage oferrors. A runt packet is one that is less than the minimumEthernet frame size of 64 bytes.Giants If this check box is selected, the number of giant packetswill be included in calculating the overall percentage oferrors. A giant packet exceeds the maximum Ethernetframe size of 1518 bytes (excluding the preamble).OOW Collisions If this check box is selected, all collisions out of thestandard collision window (51.2μs) will be included incalculating the overall percentage of errors. Out-of-window collisions are typically caused by faulty networkdesign.The CARGO description displayed in the alarm type list is an acronymrepresenting the available error types: C = CRC, A = Alignment, R = Runts,G = Giants, O = OOW Collisions.This mask will only display the letterscorresponding to the error types you have chosen to include in the overallpercentage of errors.BroadcastThe broadcasts threshold determines the number of broadcast packets that mustbe processed by the repeater, module, or port within the user-defined timebasebefore an alarm is reached. Allowable values are 1 to ≈ 4 billion.Setting Repeater AlarmsA repeater alarm is based on the combined conditions of a hub network. You canset alarms for error levels (for all errors or just specific types of errors), broadcastpacket traffic, data traffic, and collisions.NOTEIf an alarm type is not supported by your device the alarm configuration options of thistype will be grayed out.