Nortel Versalar 15000 Troubleshooting Manual

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Nortel Versalar 15000 Troubleshooting Manual Manual pdf 135 page image

Troubleshooting with Packet Capture302768-C Rev 00 8-19Example 6To capture rx and tx PPP packets whose PPP control field matches 0x03, whichmeans it is a datagram, and whose IP protocol matches ICMP, you enter thefollowing commands. (Note that this example assumes that you have alreadyspecified the type field as shown in Example 5).rx-filter2-type capturerx-filter2-offset 1rx-filter2-reference macrx-filter2-size 1rx-filter2-match 0x03tx-filter2-type capturetx-filter2-offset 1tx-filter2-reference mactx-filter2-size 1tx-filter2-match 0x03rx-filter2-group andtx-filter2-group andDisplaying the Current Packet Capture ConfigurationYou can display the current Packet Capture configuration in one of two ways. Youcan enter the info command at the PCAP prompt, or enter the show pcap configcommand at the BCC prompt. The subsections that follow indicate how to useeach of these options.Using the info CommandWhen you use the info command to display current packet capture configuration,the BCC displays each attribute and its value. See the “Packet CaptureParameters” on page 8-26 for a description of each attribute and its values.Examplepcap/2/2/1# infostate enabledcapture-state stopcapture-buf-size 100capture-packet-size 96capture-direction bothrx-trigger notusedtx-trigger notused