Troubleshooting With Packet Capture - Nortel Versalar 15000 Troubleshooting Manual

You can use packet capture to troubleshoot network problems such as protocol
interpretability with other equipment, to verify customer premise equipment
(CPE) filters, and to diagnose problems with the exterior gateway protocols used
with the CPE. Packet capture (PCAP) allows you to examine packets passing
through selected circuits on the Versalar 15000. It copies the packets from the
circuits to a file in router memory. You can then open the file and view the packets
to troubleshoot a problem. This chapter describes how to use the BCC to
configure and run the packet capture utility as follows:
Topic
Before Running Packet Capture
Using Packet Capture
Examining a Packet Capture File
Displaying Packet Information Using the BCC
Preparing Packet Capture to Run
Enabling and Disabling Packet Capture
Starting and Terminating Packet Capture
Displaying the Current Packet Capture State
Displaying a Packet Capture File in the BCC
Deleting a Packet Capture Instance
Configuring the Direction of the Packets to Be Copied
Configuring a Termination Trigger
Assigning Filters
Configuration Examples
Displaying the Current Packet Capture Configuration
Displaying Event Messages Issued by Packet Capture
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Troubleshooting with Packet Capture

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