Owner's Manual

Chapter 8. Status Monitoring and Statistics | 193
NETGEAR 8800 User Manual
Viewing Port Statistics
XCM8800 software provides a facility for viewing port statistical information. The summary
information lists values for the current counter for each port on each operational module in
the system. The switch automatically refreshes the display (this is the default behavior).
You can also display a snapshot of the real-time port statistics at the time you issue the
command and view the output in a page-by-page mode. This setting is not saved; therefore,
you must specify the
no-refresh parameter each time you want a snapshot of the port
statistics.
Values are displayed to nine digits of accuracy.
To view port statistics, use the following command:
show ports {<port_list> | stack-ports <stacking-port-list>} statistics
{no-refresh}
The switch collects the following port statistical information:
• Link State—The current state of the link. Options are:
• Active (A)—The link is present at this port.
• Ready (R)—The port is ready to accept a link.
• Loopback (L)—The port is configured for WANPHY loopback.
• Not Present (NP)—The port is configured, but the module is not installed in the slot
(modular switches only).
• Transmitted Packet Count (TX Pkt Count)—The number of packets that have been
successfully transmitted by the port.
• Transmitted Byte Count (TX Byte Count)—The total number of data bytes successfully
transmitted by the port.
• Received Packet Count (RX Pkt Count)—The total number of good packets that have
been received by the port.
• Received Byte Count (RX Byte Count)—The total number of bytes that were received by
the port, including bad or lost frames. This number includes bytes contained in the Frame
Check Sequence (FCS), but excludes bytes in the preamble.
• Received Broadcast (RX Bcast)—The total number of frames received by the port that
are addressed to a broadcast address.
• Received Multicast (RX Mcast)—The total number of frames received by the port that are
addressed to a multicast address.
Viewing Port Errors
The switch keeps track of errors for each port and automatically refreshes the display (this is
the default behavior).