HP Comware 5 Debug Manual Vol 3

Parameters
receive: Specifies debugging for BPDU packets received.
send: Specifies debugging for BPDU packets sent.
terminal-id: Specifies a POS terminal by its ID in the range of 1 to 255.
app-id: Specifies a POS application by its ID in the range of 1 to 31.
Usage guidelines
Use the receive or send, and terminal or app keywords to enable or disable packet debugging in a
specific direction on a specific POS terminal or application.
Special fields of the POS packet include the following:
•
STX.
•
PktLen (packet length).
•
ID (ID of the Transport Protocol Data Unit ID, TPDU ID).
•
DST (destination address of the TPDU).
•
SRC (source address of the TPDU).
•
EXT.
•
CRC (cyclic redundancy check).
If a received packet is incomplete, fields that contain no data are displayed as 0. If a received packet is
longer than 32 bytes, only the first 32 bytes are displayed.
Examples
# Enable POS access packet debugging. When Terminal 2 communicates with the POS terminal device
in FCM mode, and is mapped to application 1 in TCP connection mode, output similar to the following
example is generated:
<Sysname> debugging posa packet
*May 13 14:56:45:891 2008 H3C POSA/7/PACKET:
Received 584 bytes from fcm terminal 2.
ID(0x60) DST(0xaaaa) SRC(0x1111)
Total length: 584 Offset: 0, partial data as follows:
0x000: 60 aa aa 11 11 30 6d 1b 5b 30 30 6d 61 6e 61 63
0x010: 6f 6e 64 61 2d 6b 73 2e 63 66 67 1b 5b 30 30 6d.
// POS access received a 584-byte packet.
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