Debug option Effect of a reboot or reset
event (debug type) If a syslog server IP address is configured in the startup-config file, the
sending of Event Log messages is reset to enabled, regardless of the
last active setting.
If no syslog server is configured, the sending of Event Log messages is
disabled.
IP (debug type) Disabled.
• Debug commands do not affect normal message output to the Event Log.
Using the debug event command, you can specify that Event Log messages are sent to the debug
destinations you configure (CLI session, syslog servers, or both) in addition to the Event Log.
• Ensure that your syslog servers accept debug messages.
All syslog messages resulting from a debug operation have a "debug" severity level. If you configure the switch
to send debug messages to a syslog server, ensure that the server's syslog application is configured to accept
the "debug" severity level. (The default configuration for some syslog applications ignores the "debug" severity
level.)
• Duplicate IP addresses are not stored in the list of syslog servers.
• If the default severity value is in effect, all messages that have severities greater than the default value are
passed to syslog. For example, if the default severity is "debug," all messages that have severities greater
than debug are passed to syslog.
• There is a limit of six syslog servers. All syslog servers are sent the same messages using the same filter
parameters. An error is generated for an attempt to add more than six syslog servers.
Diagnostic tools
Port auto-negotiation
When a link LED does not light (indicating loss of link between two devices), the most common reason is a failure
of port auto-negotiation between the connecting ports. If a link LED fails to light when you connect the switch to a
port on another device, do the following:
Procedure
1. Ensure that the switch port and the port on the attached end-node are both set to Auto mode.
2. If the attached end-node does not have an Auto mode setting, you must manually configure the switch port to
the same setting as the end-node port. See Port Status and Configuration on page 55.
Ping and link tests
The ping test and the link test are point-to-point tests between your switch and another IEEE 802.3-compliant
device on your network. These tests can tell you whether the switch is communicating properly with another
device.
368 Aruba 2530 Management and Configuration Guide for
ArubaOS-Switch 16.05
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