Network Graph - Motorola WiNG 5.5 Reference Manual

13 - 78 WiNG 5.5 Access Point System Reference Guide
The Receive Errors
Rx Frame Errors
Rx Length Errors
Rx FIFO Errors
Rx Missed Errors
Rx Over Errors
The Transmit Errors
Tx Errors
Tx Dropped
Tx Aborted Errors
Tx Carrier Errors
Tx FIFO Errors
Tx Heartbeat Errors
Tx Window Errors
Refresh

13.3.11.2 Network Graph

Interfaces
The Network Graph displays statistics the access point continuously collects for its interfaces. Even when the interface
statistics graph is closed, data is still collected. Display the interface statistics graph periodically for assessing the latest
interface information. Up to three different stats can be selected and displayed within the graph.
table displays the following:
Displays the number of frame errors received at the interface. A frame error occurs when
data is received, but not in an expected format.
Displays the number of length errors received at the interface. Length errors are
generated when the received frame length was either less or over the Ethernet standard.
Displays the number of FIFO errors received at the interface. First-in First-out queueing is
an algorithm that involves buffering and forwarding of packets in the order of arrival. FIFO
entails no priority. There is only one queue, and all packets are treated equally. An
increase in FIFO errors indicates a probable hardware malfunction.
Displays the number of missed packets. Packets are missed when the hardware received
FIFO has insufficient space to store an incoming packet.
Displays the number of overflow errors received. Overflows occur when a packet size
exceeds the allocated buffer size.
field displays the following:
Displays the number of packets with errors transmitted on the interface.
Displays the number of transmitted packets dropped from the interface.
Displays the number of packets aborted on the interface because a clear-to-send request
was not detected.
Displays the number of carrier errors on the interface. This generally indicates bad
Ethernet hardware or bad cabling.
Displays the number of FIFO errors transmitted at the interface. First-in First-Out (FIFO)
queueing is an algorithm that involves the buffering and forwarding of packets in the order
of arrival. FIFO uses no priority. There is only one queue, and all packets are treated
equally. An increase in the number of FIFO errors indicates a probable hardware
malfunction.
Displays the number of heartbeat errors. This generally indicates a software crash, or
packets stuck in an endless loop.
Displays the number of window errors transmitted. TCP uses a sliding window flow
control protocol. In each TCP segment, the receiver specifies the amount of additional
received data (in bytes) the receiver is willing to buffer for the connection. The sending
host can send only up to that amount. If the sending host transmits more data before
receiving an acknowledgment, it constitutes a window error.
Select Refresh to update the statistics counters to their latest value.