Displays real-time port statistic information. The switch automatically refreshes the output unless otherwise specified.
| stacking-port-list | Specifies one or more stacking slots and ports. Applies to SummitStack and the Summit family switches only. |
| port_list | Specifies one or more ports or slots and ports. |
| no-refresh | Specifies that auto-refresh is disabled. The output provides a real-time snapshot of the port statistics at the time the command is issued. This setting is not saved. |
| refresh | Specifies a continuous refresh of output. |
The switch automatically refreshes the output.
If you do not specify a port number or range of ports, statistics are displayed for all ports.
If you do not specify the no-refresh parameter, the switch automatically refreshes the output (this is the default behavior).
If you specify the no-refresh parameter, the output provides a snapshot of the real-time port statistics at the time you issue the command and displays the output in page-by-page mode (this was the default behavior in ExtremeXOS 11.2 and earlier). This setting is not saved; therefore, you must specify the no-refresh parameter each time you want a snapshot of the port statistics.
Jumbo frame statistics are displayed for switches only that are configured for jumbo frame support.
This status information may be useful for your technical support representative if you have a network problem.
Port Number.
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.
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.
Note
On Summit switches, when a broadcast jumbo frame is sent, the RX Bcast counter is not updated. The RX Pkt counter is updated to reflect the received broadcast jumbo frames.
Received Multicast (RX Mcast)—The total number of frames received by the port that are addressed to a multicast address.
Port Monitoring Display Keys with Auto-Refresh Enabled
| Key(s) | Description |
|---|---|
|
U |
Displays the previous page of ports. |
|
D |
Displays the next page of ports. |
|
[Esc] |
Exits from the screen. |
|
0 |
Clears all counters. |
Port Monitoring Displays Keys with Auto-Refresh Disabled
| Key | Description |
|---|---|
|
Q |
Exits from the screen. |
|
[Space] |
Displays the next page of ports. |
The following command displays port statistics for slot 1, ports 1 through 2 on a modular switch with auto-refresh disabled:
show ports 1:1-1:2 statistics no-refresh
The following is sample output from this command:
Port Statistics Port Link Tx Pkt Tx Byte Rx Pkt Rx Byte Rx Rx State Count Count Count Count Bcast Mcast ========================================================================== 1:1 A 7241 2722608 14482 3968068 0 0 1:2 R 0 0 0 0 0 0 ========================================================================== Link State: A-Active, R-Ready, NP-Port not present, L-Loopback
The following command displays port statistics for all ports on the Summit family switches with auto-refresh enabled (the default behavior):
show ports statistics
The following is truncated sample output from this command:
Port Statistics Tue Jul 5 14:18:34 UTC 2005 Port Link Tx Pkt Tx Byte Rx Pkt Rx Byte Rx Rx State Count Count Count Count Bcast Mcast =========================================================================== 1 R 0 0 0 0 0 0 2 R 0 0 0 0 0 0 3 R 0 0 0 0 0 0 4 R 0 0 0 0 0 0 5 R 0 0 0 0 0 0 6 R 0 0 0 0 0 0 7 R 0 0 0 0 0 0 8 R 0 0 0 0 0 0 9 R 0 0 0 0 0 0 10 R 0 0 0 0 0 0 11 R 0 0 0 0 0 0 12 R 0 0 0 0 0 0 13 R 0 0 0 0 0 0 14 R 0 0 0 0 0 0 15 R 0 0 0 0 0 0 16 R 0 0 0 0 0 0 17 R 0 0 0 0 0 0 ================================================================================ Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback 0->Clear Counters U->page up D->page down ESC->exitPort Statistics
This command was first available in ExtremeXOS 10.1.
The link state information was updated to include NP-Port not present in ExtremeXOS 11.2.
Support for the auto-refresh functionality and the no-refresh parameter were added in ExtremeXOS 11.3. Auto-refresh continually updates the display. The no-refresh parameter takes a real-time snapshot of the display at the time you issue the command.
The refresh keyword was added in ExtremeXOS 16.1.
This command is available on all platforms.
The stack-ports option is available on SummitStack and the Summit Family switches only.
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