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* Processing packets since: This is the time since the packet processing was started. This can be the uptime of the system but packet processing can be manually restarted for various reasons (replaying pcap files, clearing all data, changing some configuration settings, etc). | * '''Processing packets since''': This is the time since the packet processing was started. This can be the uptime of the system but packet processing can be manually restarted for various reasons (replaying pcap files, clearing all data, changing some configuration settings, etc). | ||
* Data stored for last: This value describes how long the Allegro Network Multimeter contains information from historical traffic. | * '''Data stored for last:''' This value describes how long the Allegro Network Multimeter contains information from historical traffic. | ||
:The storage duration depends on the network traffic, the configuration settings, and the amount of memory available in the system. | :The storage duration depends on the network traffic, the configuration settings, and the amount of memory available in the system. | ||
:Once the memory is fully utilized, older data will be automatically removed in favor of new data. | :Once the memory is fully utilized, older data will be automatically removed in favor of new data. (With 3.7 this will be called "Statistics accessible for the last") | ||
* Estimated data store time: This value is calculated based on the current data store time and the memory utilization. It gives an indication for how long data can be stored once the memory is fully in use (which is automatically adjusted to 90%). | * '''Estimated data store time''': This value is calculated based on the current data store time and the memory utilization. It gives an indication for how long data can be stored once the memory is fully in use (which is automatically adjusted to 90%). (With 3.7 this will be called "Maximum time statistics could be accessible") | ||
* Packets stored in ring buffer for last: If a storage device is used for a packet ring buffer, this time indicates how long packet data has been stored in the buffer. | * '''Packets stored in ring buffer for last''': If a storage device is used for a packet ring buffer, this time indicates how long packet data has been stored in the buffer. | ||
:This means that network traffic can be extracted from the past within this time period. | :This means that network traffic can be extracted from the past within this time period. | ||
:The duration may be larger than the data store time or even shorter depending on the actual network traffic and the size of the storage device and ring buffer. | :The duration may be larger than the data store time or even shorter depending on the actual network traffic and the size of the storage device and ring buffer. | ||
* Memory utilization: The current utilization is printed together with a graph about the change of the utilization over time. | * '''Memory utilization''': The current utilization is printed together with a graph about the change of the utilization over time. | ||
:The Allegro Network Multimeter uses an automatic cleanup mechanism to remove old data in favor of new data. | :The Allegro Network Multimeter uses an automatic cleanup mechanism to remove old data in favor of new data. | ||
:The available memory should always be used as much as possible and the cleanup mechanism ensures that approximately 90% of the system memory is in use. | :The available memory should always be used as much as possible and the cleanup mechanism ensures that approximately 90% of the system memory is in use. (With 3.7 this will be called "In Memory DB utilization") | ||
* Load: The load information shows the utilization of the system’s CPU. | * '''Load''': The load information shows the utilization of the system’s CPU. | ||
:If the load hits 100% for a longer period of time, it means the system is overloaded for the current network traffic. | :If the load hits 100% for a longer period of time, it means the system is overloaded for the current network traffic. | ||
:A corresponding notification is shown at the top of the window. | :A corresponding notification is shown at the top of the window. | ||
:When this happens, usually some network traffic can no longer be analyzed and packet drops occur. | :When this happens, usually some network traffic can no longer be analyzed and packet drops occur. | ||
:This only affects packet analysis. In Bridge mode, packet forwarding is still possible even if the analysis is overloaded. | :This only affects packet analysis. In Bridge mode, packet forwarding is still possible even if the analysis is overloaded. | ||
*Ingress packet memory utilization: Shows the usage of the memory reserved for buffering received packets. | *'''Ingress packet memory utilization''': Shows the usage of the memory reserved for buffering received packets. | ||
:The current utilization is printed together with a graph about the change of the utilization over time. | :The current utilization is printed together with a graph about the change of the utilization over time. | ||
:If this memory is depleted some packets will not be processed. | :If this memory is depleted some packets will not be processed. | ||