Note
This description describes command operation on the BlackDiamond X8 series switches, BlackDiamond 8800, SummitStack, and Summit family switches.Displays egress packet counts or dropped-traffic counts for each QoS profile on the specified ports.
| port_list | Specifies one or more slots and ports. |
| congestion | Specifies the display of packets dropped at ingress due to port congestion. |
| no-refresh | Specifies a static snapshot of data instead of the default dynamic display. |
| refresh | Specifies a continuous refresh of output. |
Displays egress packet counts in real-time.
The bottom line in the real-time display shows keys that you can press to change the display. For example, the spacebar toggles the display between egress packet counts and ingress dropped-packet counts.
Note
This command does not work properly if another CLI session is displaying congestion statistics in real time.
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. Due to hardware limitations, the dropped-packet counters for QoS profiles cannot count dropped packets from all possible locations. Because of these limitations, the sum of all dropped packets for all QoS profiles can be less than the per port count displayed with the command: show ports port_list congestion {no-refresh} .
On BlackDiamond X8 series switches, BlackDiamond 8800 c-, and e-series modules, and Summit X440, you can display packet counts for one port per slot or module at a time. You can simultaneously display packet counts for multiple ports, but they must be from different slots or modules. The dropped packet display is limited to the 8 most-significant digits. This limitation does not apply to BlackDiamond 8900 series modules.
When you display the packet counts for a port, this action configures the hardware to monitor that port. If the slot or module hardware was previously configured to monitor a different port, the counters are reset for the new port. If the selected port is the last port displayed on the module, the counters are not reset.
Note
On BlackDiamond X8 series switches, BlackDiamond 8900 xm-series modules and Summit X670 series switches, QP1-4 support one unicast and one multicast queue for each QoS profile. The QoS monitor counters for QP1-4 tally the unicast and multicast traffic for these QoS profiles. QoS monitor counters for QP5-8 tally only the unicast traffic for these QoS profiles.
# show ports 2:1, 3:6 qosmonitor Qos Monitor Req Summary Thu Mar 2 10:58:23 2006 Port QP1 QP2 QP3 QP4 QP5 QP6 QP7 QP8 Pkt Pkt Pkt Pkt Pkt Pkt Pkt Pkt Xmts Xmts Xmts Xmts Xmts Xmts Xmts Xmts ================================================================================ 2:1 0 0 0 0 0 0 0 0 3:6 0 0 0 0 0 0 0 0 ================================================================================ > indicates Port Display Name truncated past 8 characters Spacebar->Toggle screen 0->Clear counters U->Page up D->Page down ESC->exit
# show ports 2:1, 3:6 qosmonitor congestion QoS Monitor Req Summary Thu Jun 12 01:17:14 2008 Port QP1 QP2 QP3 QP4 QP5 QP6 QP7 QP8 Pkt Pkt Pkt Pkt Pkt Pkt Pkt Pkt Cong Cong Cong Cong Cong Cong Cong Cong ================================================================================ 2:1 0 0 0 0 0 0 0 0 3:6 8745 0 129 0 0 0 0 0 ================================================================================ > indicates Port Display Name truncated past 8 characters Spacebar->Toggle screen 0->Clear counters U->Page up D->Page down ESC->exit
This command was first available in ExtremeXOS 10.1.
You must specify the ports in ExtremeXOS 11.0.
The no-refresh keyword was added in ExtremeXOS 11.3.
The congestion keyword was added in ExtremeXOS 12.2, and the toggling functionality was modified to switch between egress packets and dropped packets.
The refresh keyword was added in ExtremeXOS 16.1.
This command is available on BlackDiamond X8 series switches, BlackDiamond 8000 series modules, SummitStack, and Summit family switches.
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