Extreme Networks ExtremeWare 7.3.0, Справочник по командам

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732 ExtremeWare Software 7.3.0 Command Reference Guide
Commands for Status Monitoring and Statistics
show ports rxerrors
show ports {mgmt | <portlist>} rxerrors
Description
Displays real-time receive error statistics.
For PoS modules, displays the
rxerror
information for the PoS ports. Only a subset of the statistics
displayed by this command are applicable to PoS ports. The fields that do not apply to PoS ports are
displayed with values of all zeroes.
Syntax Description
Default
N/A.
Usage Guidelines
If you do not specify a port number or range of ports, receive error statistics are displayed for all ports.
This status information may be useful for your technical support representative if you have a network
problem.
The following port receive error information is collected by the switch:
• Port Number
• Link Status—The current status of the link. Options are:
— Ready (R): The port is ready to accept a link.
— Active (A): The link is present at this port.
— Disabled (D): The link is disabled at this port.
— Not Present (NP): The link is not present at this port.
• Receive Bad CRC Frames (RX CRC)—The total number of frames received by the port that were of
the correct length, but contained a bad FCS value.
• Receive Oversize Frames (RX Over)—The total number of good frames received by the port greater
than the supported maximum length of 1,522 bytes. For products that use the “i” chipset, ports with
jumbo frames enabled do not increment this counter.
• Receive Undersize Frames (RX Under)—The total number of frames received by the port that were
less than 64 bytes long.
• Receive Fragmented Frames (RX Frag)—The total number of frames received by the port were of
incorrect length and contained a bad FCS value.
mgmt Specifies the management port. Supported only for switches that provide a
management port.
portlist Specifies one or more ports or slots and ports. On a modular switch, can be a
list of slots and ports. On a stand-alone switch, can be one or more port
numbers. May be in the form 1, 2, 3-5, 2:5, 2:6-2:8.