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==System Info== | ==System Info== | ||
'''Web interface''' | '''Web interface''' | ||
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* Data stored for last: This value describes for how long the Multimeter contains information from past traffic. | * Data stored for last: This value describes for how long the Multimeter contains information from past traffic. | ||
:The storage duration depends on the network traffic, the configuration settings, but also the amount of memory available in the system. | :The storage duration depends on the network traffic, the configuration settings, but also 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. | ||
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* Packets stored in ring buffer for last: If a storage device is used for a packet ring buffer, this time indicates for 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 for 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 Multimeter uses an automatic cleanup mechanism to remove old data in favor of new data. | :The 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. | ||
* 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. | ||
:The Global element count lists some global parameters about how many MAC addresses, IP addresses, connections and so on are stored in the system. | |||
The Global element count lists some global parameters about how many MAC addresses, IP addresses, connections and so on are stored in the system. | :If the system is equipped with a GPS precision option, the section GPS information shows information about the clock synchronization, accuracy, and so on. | ||
If the system is equipped with a GPS precision option, the section GPS information shows information about the clock synchronization, accuracy, and so on. | |||
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