Bridging
The following transmit and receive statistics Þelds are displayed in the lower portion of the window. The Þrst four statistics are also graphically displayed in a pie chart. The statistics are read directly from the device, and are updated with each poll from SPECTRUM Element Manager to the device.
Unicast
Displays the number of packets transmitted to, or received from, this interface that had a single, unique source or destination address. These statistics are displayed in the pie chart
Non-Unicast
Displays the number of packets transmitted to, or received from, this interface that had a source or destination address that is recognized by more than one device on the network segment. The
Discarded
Displays the number of packets which were discarded even though no errors were detected to prevent transmission. One possible reason for discarding such a packet could be to free up buffer space.
The discarding of good packets indicates a very busy network. If a device routinely discards packets, it usually means that network trafÞc is overwhelming the device. A change in network conÞguration (such as the addition of a bridge or switch) may help reduce network congestion.
These statistics are displayed in the pie chart
Error
Displays the number of packets received or transmitted that contained errors. These statistics are displayed in the pie chart
Unknown Protocol
Displays the number of packets received which were discarded because of an unknown or unsupported protocol. The device bridge interface will discard the packet and increment this counter if it canÕt recognize the packet.
Packets Received
Displays the number of packets received by this interface.
Transmit Queue Size
The number of packets currently queued by the device for transmission from this interface. The amount of device memory devoted to buffer space, and the trafÞc level on the target network, determine how large the output packet queue can grow before the device begins to discard packets.
Packets Transmitted
Displays the number of packets transmitted by this interface.
Bridge Statistics |