IBM SC30-3681-08 manual Accessing the Ethernet Interface Operating Process, Collisions

Ethernet Con®guration Commands (Talk 6)

Example:

set physical-address

MAC address in 00:00:00:00:00:00 form []? 12:15:00:FA:00:FE

Accessing the Ethernet Interface Operating Process

To monitor information related to the Ethernet Network Interface, access the interface monitoring process by doing the following:

1.At the OPCON prompt, enter talk 5. For example:

* talk 5

The GWCON prompt (+) is displayed on the console. If the prompt does not appear when you ®rst enter GWCON, pressReturn again.

2.At the GWCON prompt, enter the con®guration command to see the protocols and networks for which the router is con®gured. For example:

+ configuration

See page ªCon®gurationº on page 130 for sample output of thecon®guration command.

3.Enter the network command and the number of the Ethernet interface. In this example:

+network 0 ETH>

The Ethernet monitoring prompt is displayed. You can now view information about the Ethernet interface by entering monitoring commands.

Ethernet Interface Monitoring Commands

This section summarizes and explains the Ethernet monitoring commands. Enter commands at the ETH> prompt. Table 34 lists the monitoring commands.

Table 34. Ethernet monitoring command Summary

CommandFunction

? (Help)	Displays all the commands available for this command level or lists
	the options for speci®c commands (if available). See ªGetting Helpº
	on page 10.
Collisions	Displays collision statistics for the speci®ed Ethernet interface.
Exit	Returns you to the previous command level. See ªExiting a Lower
	Level Environmentº on page 11.

Collisions

This command shows the counts of transmissions for packets that incurred collisions before successful transmission. Counters are given for packets sent after the collision XXXXx packets sent after 15 collisions. Increasing numbers of packets transmitting with collisions and higher numbers of collision per packet are signs of transmitting onto a busy Ethernet.

These counters are cleared by the OPCON clear command. This data is exported via SNMP as the dot3CollTable counter.

Chapter 19. Con®guring and Monitoring the Ethernet Network Interface 253