
Using the Technician Interface to Configure and Run Packet Capture
B-41
Parameter: Buffer Size
Attribute Name: wfPktCaptureBufSize
Attribute Number: 8
Default: None
Range: 1 (allocates 1024 bytes) | 2 (allocates 2048
bytes), … Available contiguous memory divided by 1024.
Function: Sets the size of the file stored in buffer memory in 1024-byte increments.
The upper limit is the maximum number of contiguous bytes of memory
available on the slot. You can find the maximum number of contiguous
bytes by entering
get wfKernelEntry.6.
<slot no.>
6 represents the wfKernelMemoryMaxSegFree attribute.
Instructions: If the allocation of the buffer leaves less than 200 KB of memory, a
warning appears in the log. The operating system may need to allocate
and free memory. If the memory needed is not available, an error occurs.
If errors occur after you start Packet Capture, stop it and allocate a smaller
buffer size.
MIB Object ID: 1.3.6.1.4.1.18.3.4.21.1.1.8
Parameter: Packet Size
Attribute Name: wfPktCapturePktSize
Attribute Number: 9
Default: None
Range: 1 (32 bytes saved) | 2 (64 bytes saved), … 144 (4608 bytes saved)
Function: Sets the number of bytes in 32-byte increments to be saved from a packet.
MIB Object ID: 1.3.6.1.4.1.18.3.4.21.1.1.9
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