show ports collisions
ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
ExtremeWare XOS 11.5 Command Reference Guide
387
show ports collisions
show ports {mgmt | <port_list>} collisions {no-refresh}
Description
Displays real-time collision statistics.
Syntax Description
Default
Real-time statistics.
Usage Guidelines
If you do not specify a port number or range of ports, collision statistics are displayed for all ports. To
clear the counters, use the clear counters ports command. The default display is a constantly refreshing
real-time display. If you specify the
no-refresh parameter, the system displays a snapshot of the data
at the time you issue the command.
This status information may be useful for your technical support representative if you have a network
problem.
Example
The following command displays real-time collision statistics on slot 1, ports 1 and 2 on a modular
switch:
show ports 1:1-2 collisions
Following is sample output from this command:
Port Collision Monitor
Port Link Collision Histogram
Status 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
================================================================================
1:1 A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1:2 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
================================================================================
Link Status: A-Active R-Ready NP-Port not present
The numbers 1 to 16 represent the number of collisions encountered prior to successfully transmitting
the packet; this is applicable only for half-duplex links.
mgmt Specifies the management port.
port_list Specifies one or more ports or slots and ports.
no-refresh Specifies a static snapshot of data.
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