Extreme Networks ExtremeWare 7.7, Command Reference Manual

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334 ExtremeWare 7.7 Command Reference Guide
Commands for Configuring Slots and Ports on a Switch
show ports collisions
show ports {mgmt | <portlist>} collisions
Description
Displays real-time collision statistics.
Syntax Description
Default
N/A
Usage Guidelines
If you do not specify a port number or range of ports, collision statistics are displayed for all ports.
On a modular switch,
<portlist>
can be a list of slots and ports. On a stand-alone switch,
<portlist>
can be one or more port numbers. For a detailed explanation of port specification, see “Modular Switch
Numerical Ranges” or “Stand-alone Switch Numerical Ranges” in Chapter 1.
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 port 7 on a stand-alone switch:
show ports 7 collisions
The following command displays real-time collision statistics on slot 1, ports 1-16 on a modular switch:
show ports 1:1-1:16 collisions
Following is the output from this command:
Port Collision Monitor Wed Oct 30 19:33:10 2002
Port Link Collision Histogram
Status 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
==============================================================================
1 A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
5 A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
7 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
8 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
9 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
10 R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
mgmt Specifies the management port. Supported only for switches that provide a management port.
portlist Specifies one or more ports or slots and ports. On a modular switch, can be a list of slots and ports.
On a stand-alone switch, can be one or more port numbers. May be in the form 1, 2, 3-5, 2:*, 2:5,
2:6-2:8.