Sony Ipela PCS-XG55 Integration Manual page 89

Step 2: Capturing Network Packets
Capture network packets by using packet capturing software that helps you to determine where the packet
losses occur. The checking procedure is described in Step 3 and the subsequent steps.
Preparations:
Connect a mirroring switch between the PCS-XG Series main unit and the network switch, and then
connect a PC for packet capture to the monitor port of the mirroring switch.
(Refer to the manual supplied with the mirroring switch for details on the mirroring method.)
PCS-XG Series main unit
/ LAN 1 ALERT LAN 2 ALERT
OPEN
PC for packet capture
Procedures
1. Install capture software (e.g. Ethereal, Wireshark) on PC for packet capture.
Wireshark Download Site: http://www.wireshark.org/
2. Connect the LAN cable from the PC to the mirror port.
3. Capture the network packets by using the capture software to get a packet capture log.
Step 3: Checking the packet capture log
Determine whether packet loss has occurred by checking the sequence number in the capture log.
If missing sequence numbers are detected in the sender or receiver log, go to Step 4.
If there are no missing sequence numbers, it can be assumed that the packet loss occurs between the
switch and the PCS-XG Series main unit, or that the packet loss problem has been solved by inserting the
Mirroring Switch. In this case, repeat Step 1. If the symptom of packet loss is not revealed in the line
having the string "OPLOG", it indicates that the "Ethernet duplex mismatch problem" has been solved as
a result of the Mirroring Switch being inserted.
(In this case, check the duplex setting of the network switch that is connected to the Mirroring Switch.)
PCS-XG80
Network
Mirroring switch
PCS-XG Series main unit
/ LAN 1 ALERT LAN 2 ALERT
Mirroring switch
PC for packet capture
OPEN
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