Displays the port egress congestion statistics (dropped packets) for the specified ports on the front panel.
port_list | Specifies one or more slots and ports. |
no-refresh | Specifies a static snapshot of data instead of the default dynamic display. |
refresh | Specifies a continuous refresh of output. |
port-number | Displays port number instead of display string. |
Displays the port congestion statistics for all ports in real-time.
The bottom line in the real-time display shows keys that you can press to change the display. For example, you can clear the counters or page up or down through the list of ports.
Note
If you are displaying congestion statistics in real time and another CLI session resets the counters for a port you are monitoring, the counters displayed in your session for that port are also reset.
If you specify the no-refresh parameter, the system displays a snapshot of the data at the time you issue the command.
Note
Packets can be dropped at multiple locations along the path through the hardware. The per-port congestion counters count all dropped packets for all ports.
If you do not specify a port number or range in the command, dropped packet counts are displayed for all ports.
Note
To display the congestion statistics for the QoS profiles on a port, use the show ports port_list qosmonitor {congestion} {no-refresh} command.
Note
On a V300 bridge port extender (BPE) port, neither show ports port_list qosmonitor {congestion} {no-refresh | refresh} {port-number} nor show ports port_list congestion {no-refresh | refresh}{port-number} increments when there is egress congestion. Instead, you can view egress congestion using show ports {port_list | stack-ports stacking-port-list} rxerrors {no-refresh | refresh} on the ingress port (upstream port in many cases).# show ports congestion Port Congestion Monitor Tue May 27 13:02:37 2008 Port Link Packet State Drop ================================================================================ 1:1 R 0 1:2 R 0 1:3 A 96 1:4 R 0 2:1 R 0 2:2 A 28513 2:3 R 0 2:4 R 0 2:5 R 0 2:6 R 0 2:7 R 0 2:8 R 0 3:1 R 0 3:2 R 0 3:3 R 0 3:4 R 0 ================================================================================ > indicates Port Display Name truncated past 8 characters Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback 0->clear counters U->page up D->page down ESC->exit
# show ports congestion no-refresh Port Link Packet State Drop ================================================================================ 1:1 R 0 1:2 R 0 1:3 A 96 1:4 R 0 2:1 R 0 2:2 A 28513 2:3 R 0 2:4 R 0 2:5 R 0 2:6 R 0 2:7 R 0 2:8 R 0 3:1 R 0 3:2 R 0 3:3 R 0 3:4 R 0 5:1 R 0 ================================================================================ > indicates Port Display Name truncated past 8 characters Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback
This command was first available in ExtremeXOS 12.2.2.
The refresh keyword was added in ExtremeXOS 16.1.
This command is available on ExtremeSwitching X435, X440-G2, X450-G2, X460-G2, X465, X590, X620, and X695 series switches.