Troubleshooting; Overview; Troubleshooting Approaches - HP Aruba JL253A Management And Configuration Manual

Overview

This chapter addresses performance-related network problems that can be caused by topology, switch
configuration, and the effects of other devices or their configurations on switch operation. (For switch-specific
information on hardware problems indicated by LED behavior, cabling requirements, and other potential
hardware-related problems, see the installation guide you received with the switch.)
NOTE: Switch software updates are periodically places on the Switch Networking website. It is
recommended that you check this website for software updates that may have fixed a problem you
are experiencing.
For information on support and warranty provisions, see the Support and Warranty booklet shipped with the
switch.

Troubleshooting approaches

Cause
Use these approaches to diagnose switch problems:
• Check the HPE website for software updates that may have solved your problem: http://www.hpe.com/
networking
• Check the switch LEDs for indications of proper switch operation:
◦ Each switch port has a Link LED that should light whenever an active network device is connected to the
port.
◦ Problems with the switch hardware and software are indicated by flashing the Fault and other switch
LEDs.For a description of the LED behavior and information on using the LEDs for troubleshooting, see the
installation guide shipped with the switch.
• Check the network topology/installation. For topology information, see the installation guide shipped with the
switch.
• Check cables for damage, correct type, and proper connections. You should also use a cable tester to check
your cables for compliance to the relevant IEEE 802.3 specification. For correct cable types and connector pin-
outs, see the installation guide shipped with the switch.
• Use the Port Utilization Graph and Alert Log in the WebAgent included in the switch to help isolate problems.
These tools are available through the WebAgent:
◦ Port Utilization Graph
◦ Alert log
◦ Port Status and Port Counters screens
◦ Diagnostic tools (Link test, Ping test, configuration file browser)
• For help in isolating problems, use the easy-to-access switch console built into the switch or Telnet to the
switch console. For operating information on the Menu and CLI interfaces included in the console, see
chapters 3 and 4. These tools are available through the switch console:
458 Aruba 2930F / 2930M Management and Configuration Guide
Chapter 13

Troubleshooting

for ArubaOS-Switch 16.08