Ring Buffer Configuration Guide: Difference between revisions

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If there is no '''ring buffer''' configured, the Allegro allows a '''pcap''' extraction of live traffic only.
If there is no '''ring buffer''' configured, the Allegro allows a '''pcap''' extraction of live traffic only.


== Different '''Ring Buffer''' Modes ==
== Different '''ring buffer''' Modes ==


The '''Ring Buffer''' supports 2 different modes.  
The '''ring buffer''' supports 2 different modes.  
The '''Single Shared Ring Buffer''' can be used if you need only one Ring Buffer that fits into your storage device. The '''Single Shared Ring Buffer''' uses '''one''' shared storage for the '''Ring Buffer''' and '''pcap to Disk'''.  This mode is recommended if only one storage device is used since it allows a '''Ring Buffer''' and space for '''pcap files''' on the same storage device. Please note that using both features at the same time may lead to a performance bottleneck.
The '''single shared ring buffer''' can be used if you need only one ring buffer that fits into your storage device. The '''single shared ring buffer''' uses '''one''' shared storage for the '''ring buffer''' and '''pcap to disk'''.  This mode is recommended if only one storage device is used since it allows a '''ring buffer''' and space for '''pcap files''' on the same storage device. Please note that using both features at the same time may lead to a performance bottleneck.


The '''Cluster Ring Buffer''' mode allows to use multiple Ring Buffers where each Ring Buffer can have multiple disks. It allows having a separate disk for pcap files which allows fast '''Ring Buffer''' and fast '''pcap to disk''' writes at the same time.
The '''cluster ring buffer''' mode allows to use multiple ring buffers where each ring buffer can have multiple disks. It allows having a separate disk for pcap files which allows fast '''ring buffer''' and fast '''pcap to disk''' writes at the same time.


== '''Single Shared Ring Buffer''' ==
== '''Single Shared Ring Buffer''' ==
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