Owner's Manual

194 | Chapter 8. Status Monitoring and Statistics
NETGEAR 8800 User Manual
You can also display a snapshot of the port errors 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 errors.
To view port transmit errors, use the following command:
show ports {<port_list> | stack-ports <stacking-port-list>} txerrors
{no-refresh}
The switch collects the following port transmit error information:
• Port Number—The number of the port.
• 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).
• Transmit Collisions (TX Coll)—The total number of collisions seen by the port, regardless
of whether a device connected to the port participated in any of the collisions.
• Transmit Late Collisions (TX Late Coll)—The total number of collisions that have occurred
after the port’s transmit window has expired.
• Transmit Deferred Frames (TX Deferred)—The total number of frames that were
transmitted by the port after the first transmission attempt was deferred by other network
traffic.
• Transmit Errored Frames (TX Errors)—The total number of frames that were not
completely transmitted by the port because of network errors (such as late collisions or
excessive collisions).
• Transmit Lost Frames (TX Lost)—The total number of transmit frames that do not get
completely transmitted because of buffer problems (FIFO underflow).
• Transmit Parity Frames (TX Parity)—The bit summation has a parity mismatch.
To view port receive errors, use the following command:
show ports {<port_list> | stack-ports <stacking-port-list>} rxerrors
{no-refresh}
The switch collects the following port receive error information:
• Port Number
• 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.
• Not Present (NP)—The port is configured, but the module is not installed in the slot
(modular switches only).
• Loopback (L)—The port is in Loopback mode.