The Napatech Intelligent Network Adapters will perform a comprehensive analysis of the network traffic and will generate a very extensive amount of statistical counters based on the analysis.
The adapter statistics information is generated independently on whether the host is set up to receive the traffic or not. This enables customer applications to retrieve the comprehensive network traffic analysis at practically zero CPU load.
Napatech Intelligent Network Adapters provide two categories of counter sets:
The adapter statistics information is generated independently on whether the host is set up to receive the traffic or not. This enables customer applications to retrieve the comprehensive network traffic analysis at practically zero CPU load.
Napatech Intelligent Network Adapters provide two categories of counter sets:
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Large Counter Set: These statistical sets include a full RMON1 (RFC2819) EtherStats counter set extended with counter sets for jumbo frames, in intervals starting at 1519, 2048, 4096, 8192 and 9019 bytes. Large Counter Sets are provided on a per-port basis for both captured frames and discarded frames.
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Normal Counter Set: Counting frames and bytes divided into good and bad frames. Normal Counter Sets are provided per filter (64 sets) and per server CPU (from one to 32 sets). These counter sets can be used to optimize the traffic load on multiple CPU cores.
Counter sets are delivered as consistent snapshots, time-stamped using the 64-bit high-precision clock that is also used to time-stamp frames.
If the deduplication function is enabled, a set of deduplication counters is also provided.
If the deduplication function is enabled, a set of deduplication counters is also provided.
When two or more adapters are synchronized with respect to absolute time, block statistics are transferred synchronously from the adapters to the host. This ensures consistent counter sets when handling data from multiple adapters in absolute synchronization.