Capture Setting pages provide a variety of filter options.
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These filters can be applied before initiating the capturing process.
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Enable this can merge 2 ports, and capture the aggregated traffic. Merge is supported between port 0 with port1, port 2 with port 3, and port 4 with port 5. (Refer to Merge Port Capturing )
Compression
Compresses the file after writing to that file is complete. This works best when capturing using increment mode.
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When the volume reaches the threshold value (depending on the configuration of the QP), the oldest PCAP and compressed PCAP are deleted to make room for the newest PCAP captures.
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Regarding Rotation: By default, the threshold is set at 5%. The rotation mechanism becomes operational as soon as the capacity reaches 95%. This process involves the removal of the oldest files until the capacity returns to 95%. However, please note that the rotation process cannot be applied to the /cifs/capture/permanent directory. This particular directory is exempt from rotation, as the files within it can only be deleted intentionally by a user who wishes to remove them.
Optimal Conditions for Rotation:
For 1Gbps sustained capturing, it will be good to have at least 5 minutes worth of buffer space.
So 1Gbps x 300 seconds = 300GB -> 300Gb/(8bit/byte) = 37.5GB
(Optimal Volume Capacity) x 5% = 37.5GB
(Optimal Volume Capacity) = 750GB
For 10Gbps sustained capturing:
10Gbps x 300 seconds = 3Tb -> 3Tb/(8bit/byte) = 375GB
(Optimal Volume Capacity) x 5% = 375GB
(Optimal Volume Capacity) = 7.5TB
OoS Detect
After starting capturing with OoS-Detect (Out-of-Sync Detection) enabled, the Capture Preview section of the Capture Panel will display alerts in an event that it detects any possible Out-of-Sync packet. Mostly used for multicast traffic.
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