Netgear XCM8806 Chassis Hardware Installation Guide - Page 547
hardware limitations, the dropped-packet counts are approximate
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NETGEAR 8800 Chassis Switch CLI Manual Default Displays the port congestion statistics for all ports in real-time. Usage Guidelines 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 except the 10 GB ports. On the ports with hardware limitations, the dropped-packet counts are approximate and can be lower than the actual dropped packet counts. 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 qosmonitor {congestion} {no-refresh} command. Examples The following example shows the packets dropped due to congestion for all ports in real time: BD-8810.1 # 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 Chapter 14. QoS Commands | 547