
Troubleshooting Routers
B-12
308656-14.00 Rev 00
If less than 200 KB of free memory remains after Packet Capture starts, it sends a
warning message to the log. If errors occur after you start Packet Capture, stop it
and allocate less memory.
Specifying the Number of Bytes in Each Packet to Copy
You must specify the number of bytes in each packet to copy to the Packet Capture
file. If you want to use a Network General Sniffer to read a Packet Capture file,
you must set the size of the packets to a value the Sniffer supports. The Sniffer
currently supports the following values: 32, 64, 128, 256, and 512; they
correspond to the Nortel Networks router settings 1, 2, 4, 8, and 16.
Enter the following command to specify the number of bytes in each packet to
copy to the Packet Capture file:
set wfPktCaptureEntry.9.
<line_no.> <value>
;commit
9
represents the wfPktCapturePktSize attribute.
<line_no.>
is the number displayed after you issued the
get
command in “Creating
an Instance of Packet Capture.” To list the current line numbers associated with
Packet Capture, enter the command
list instances wfPktCaptureEntry
.
<value>
is any number of 32-byte increments in the range 1 to 144. The value 1
represents 32 bytes to be saved; the value 144 represents 4608 bytes to be saved.
Enabling Packet Capture
Enter the following Technician Interface command to enable the Packet Capture
utility:
set wfPktCaptureEntry.2.
<line_no.>
1;commit
2
represents the wfPktCaptureDisable attribute.
<line_no.>
is the number displayed after you issued the
get
command in “Creating
an Instance of Packet Capture.” To list the current line numbers associated with
Packet Capture, enter the command
list instances wfPktCaptureEntry
.
1
represents the numeric code for “enable.”
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