- Hewlett-Packard Broadband Service Analyzer User's Guide

Using the Analyzer

To Monitor Alarms and Errors

2-30

The status windows display the following information:

• Physical Layer

❍ types of alarms and the number of one-second intervals that contain

each alarm (this is called “errored seconds”)

❍ a summary of errors displayed as seconds, count, or ratio

• ATM Layer

❍ types of alarms and the number of one-second intervals that contain

each alarm

❍ count and bandwidth of ATM cells

❍ a summary of errors displayed as seconds, count, or ratio

• ATM Adaptation Layer (AAL)

❍ affected channel (VPI/VCI) for each AAL type

❍ Sequence Number and Cell Loss errors for AAL-1

❍ CRC errors for AAL-3/4 and AAL-5

❍ number of affected channels

• OAM

❍ affected channel or path

❍ ﬂow type (segment or end-to-end)

❍ the number of one-second intervals that contain AIS or RDI alarms

❍ number of affected F4 and F5 ﬂows