skarg
34 lines
1.6 KiB
Plaintext
34 lines
1.6 KiB
Plaintext
MSTP Capture Tool
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This tool captures MS/TP packets on an RS485 serial interface,
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and saves the packets to a file in Wireshark PCAP format for
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the MS/TP dissector to read. The filename has a date and time
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code in it, and will contain up to 65535 packets. A new file
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will be created at each 65535 packet interval.
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Here is a sample of the tool running (use CTRL-C to quit).
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D:\code\bacnet-stack\bin>mstpcap COM3 38400
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Adjusted interface name to \\.\COM3
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mstpcap: Using \\.\COM3 for capture at 38400 bps.
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mstpcap: saving capture to mstp_20090729123548.cap
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1400 packets
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MAC MaxMstr Tokens Retries Treply Tusage Trpfm Tder Tpostpd
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0 0 525 0 32 0 0 0 0
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1 127 525 0 16 79 0 0 0
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MS/TP capture tool also includes statistics which are listed for
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any MAC addresses found passing a token,
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or any MAC address replying to a DER message.
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The statistics are emitted when CTRL-C is pressed, or when
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65535 packets are captured and the new file is created.
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The statistics are cleared when the new file is created.
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MaxMstr = highest destination MAC during PFM
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Tokens = number of tokens transmitted
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Retries = number of second tokens sent to this MAC
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Treply = max milliseconds it took to reply with a token after receiving a token
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Tusage = max Tusage_delay in milliseconds based on PFM and subsequent token
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Trpfm = max milliseconds to respond to PFM with RPFM.
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Tder = max milliseconds to respond to DER request with DNER
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Tpostpd = max milliseconds to respond to DER request with Reply Postponed.
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