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5536 PRI RAS Communications Controller Users Guide 139
BUsing the SynWatch
Utility
Overview
The SynWatch utility is a protocol analyzer that enables you to
watch frames exchanged between the communications
controller and the ISDN network. This powerful utility helps
you track communication establishment on the ISDN D
channel and data traffic on ISDN B channels. Each ISDN
channel has a stand-alone configuration that can be selected or
deselected.
SynWatch provides diagnostics for ISDN connection failures
It also helps you detect PPP connection failures (for example,
PPP negotiation using Remote Access Service).
SynWatch interprets exchanged frames according to several
protocols. (Remote Access Service uses the PPP protocol.) It
displays these frames according to the appropriate protocol.
This appendix explains how to do the following tasks:
• Access online help
• Start the utility
• Watch ISDN ports or channels
• Watch ISDN Layer 1 alarms
• Stop and freeze the display
• Change display settings for a port or channel
• Modify Event Buffer parameters
• Save and edit frames