Interface statistics: Difference between revisions

The Interface status column contains generic information about each port:

* That is, traffic received from one port of the same link pair will be sent to the corresponding port of the same link pair, and vice verse. In '''sink mode''', the link pair number is irrelevant as no traffic is forwarded.

* If the packet processing mode '''Mixed bridge/sink mode''' has been enabled in the [[Global settings]] a drop down menu appears and the packet processing mode for the interface can be chosen. A selection here automatically affects the other interface of the link pair. Single interfaces which are not part of a link pair do not show the drop down menu as they always operate in '''Sink mode'''.

* The '''Module Info''' button opens a dialog that shows SFP-Module information like the vendor name or serial number or metrics like the signal strength or temperature, if available.

* The '''Speed setting''' offers a possibility to change the speed of the port.

* The '''Autoneg''' checkbox can be used to select if the interface uses autonegotiation or not. It may help to disable this setting if the connected device requires a fixed speed without autonegotiation.

* A selection of all possible settings is presented. The default selection is '''auto''' for the highest possible speed. This selection also has the option '''disabled''' to permanently disable the interface and bring the link down.

* The Speed indicates whether a network cable is connected and which link speed has been negotiated.

* The Duplex status shows whether the link is operated in '''full-duplex''' or '''half-duplex''' mode.

* The Maximum frame size shows the largest Ethernet frame size that can be received on that interface.

* In case the Allegro Network Multimeter operates in bridge mode and two mutual interfaces do not have the same link speed and duplex, a warning will be shown below the Duplex status for both interfaces.

* The Current receive/transmit utilization summarizes the traffic received and sent by the network port.

* The value is calculated by the number of bytes received and sent in relation to full-duplex link speed.

* The '''Clock synchronization''' is shown for GNSS/GPS-capable interfaces when the GNSS/GPS time synchronization method is enabled (see [[Administration]]). It shows either GNSS/GPS or PPS depending on the clock source of the interface. If 'not locked' is displayed behind the synchronization source this means that the internal DPLL synchronization circuit is not yet fully locked onto the source clock signal. It may take several minutes after activation for the DPLL to lock onto the clock source.

* The '''Clock offset''' is shown for GNSS/GPS-capable interfaces when the GNSS/GPS time synchronization method is enabled (see [[Administration]]). It shows the time offset in nanoseconds at the last synchronization between the interface clock and the DPLL synchronization circuit driven either by GNSS/GPS or PPS.

* A PCAP buttons allows capturing all traffic for that network port.