Extreme Networks ExtremeWare Command Reference Manual page 655

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Table of Contents

Commands for Status Monitoring and

This chapter describes commands for:

• Configuring and managing the Event Management System and logging

• Enabling and disabling NetFlow flow statistics collection ("i" series platforms only)

• Configuring flow-collection port and filtering options ("i" series platforms only)

• Configuring the flow-collector devices to which NetFlow datagrams are exported ("i" series

platforms only)

• Enabling, disabling, and configuring sFlow

When an event occurs on a switch, the Event Management System (EMS) allows you to send messages

generated by these events to a specified log target. You can send messages to the memory buffer,

NVRAM, the console display, the current session, or to a syslog host. The log messages contain

configuration and fault information pertaining to the device. The log messages can be formatted to

contain various items of information, but typically a message will consist of:

• Timestamp—The time when the event occurred.

• Severity level:

— Critical—A desired switch function is inoperable. The switch may need to be reset.

— Error—A problem is interfering with normal operation.

— Warning—An abnormal condition exists that may lead to a function failure.

— Notice—A normal but significant condition has been detected; the system is functioning as

— Info—Actions and events are occurring consistent with expected behavior.

— Debug-Summary, Debug-Verbose, and Debug-Data—These provide information that is useful

when performing detailed trouble shooting procedures.

By default, log entries that are assigned a critical, error, or warning level are considered static entries

and remain in the NVRAM log target after a switch reboot.

• Component: The component refers to the specific functional area to which the error refers.

• Message: The message contains the log information with text that is specific to the problem.

The switch maintains a configurable number of messages in its internal (memory-buffer) log (1000 by

default). You can display a snapshot of the log at any time. In addition to viewing a snapshot of the log,

you can configure the system to maintain a running real-time display of log messages on the console

ExtremeWare 7.5 Command Reference Guide

statistics collection ("i" series platforms only)

Extremeware 7.5