3Com S26x, S27x, S24x installation manual Threshold Value-CSS

Configuring Channelized Data

Threshold Value-CSS

Range:	1 to 255
Default:	10
Description:	Specifies the number of errors that must occur within a fixed
	15- minute window before an alarm is declared. This is based on
	the threshold value for Controlled Slip Seconds, which are one-
	second intervals containing one or more controlled slips.

Threshold Value-ES

Range:	1 to 255
Default:	10
Description:	Specifies the number of errors that must occur within a fixed
	15- minute window before an alarm is declared. This is based on
	the threshold value for Error Seconds, which have:
	• one or more path code violations
	• one or more out-of-frame defects
	• one or more controlled slip events
	• a detected alarm indication signal defect
	For D4 and E1-CRC links, the presence of bipolar violations also
	triggers an errored second.
Threshold Value-BES
Range:	1 to 255
Default:	10
Description:	Specifies the number of errors that must occur within a fixed
	15- minute window before an alarm is declared. This is based on
	the threshold value for Bursty Errored Seconds, which have:
	• fewer than 320 and more than 1 path coding violation error
	events
	• no severely errored frame defects
	• no detected incoming alarm indication signal defects
	Controlled slips are not included; BES is not incremented during
	an unavailable second.

Channelized Data 5-15