The sequence check function detects the number of lost packets, reversed-order packets, and duplicate packets by cross-checking the sequence numbers entered into the frame. This function makes it easy to check the performance of LAN switches and routers. Furthermore, this function can easily analyze the causes of errors by setting the sequence error to capture trigger.

Settings for sequence check

To activate the sequence check function, put a check before "enter sequence counter." It is also possible to activate the sequence check function in the insert frame.

Display results of sequence check

The alarm log function can keep a record of packet errors (CRC errors, alignment errors, symbol errors, undersize, oversize, etc.), abnormalities in the Inter Frame Gap (IFG) (under 96 bits), variations in Layer1 (linkup, link down, etc.), abnormalities in mail receiving rates, abnormal packet latencies, and sequence errors. Abnormalities in mail receiving rates and abnormal packet latencies can be detected by specifying the QoS channel and is effective in verifying priority control per flow and bandwidth control.

Alarm setting

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Packet error detection	Abnormal packet latency detection
Detection of abnormal mail receiving rate	Sample alarm log displays

The automatic address acquisition function acquires MAC addresses of the device under test (DUT) form IP addresses. It is no longer necessary to carry out cumbersome tasks such as setting MAC addresses of the transmit frame. This function improves work efficiency and prevents operation errors. With IPv6, it is possible to display the gateway MAC address obtained through the Router Advertisement (RA) requested by the Router Solicitation (RS), and this can be used as MAC address for the transmit frame.

Sample of automatic address acquisition

A list of MAC addresses acquired through target IP addresses.

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