Chapter 3: Troubleshooting Planning - Avaya 5000 Series Troubleshooting Manual

Chapter 3: Troubleshooting planning

This chapter provides information to help you
• minimize the need for troubleshooting
• plan effective troubleshooting
Become familiar with the technical documentation suite:
Know where to get information when you need it; use the Documentation Reference for Avaya Ethernet
Routing Switch 5000 Series, NN47200–103 to familiarize yourself with the documentation set.
Ensure correct system installation and maintenance:
Make sure your system is properly installed and maintained so that it operates as expected.
Gather and maintain resources for effective troubleshooting:
Gather, and keep up to date, the resources you require if you have to troubleshoot.
For example:
• the site network map
• logical connections
• device configuration information
A site network map identifies where each device is, physically, in your site. The site network map helps
locate the users and applications that are affected by a problem. You can use the map to systematically
search each part of your network for problems.
You must know how your devices are connected logically and physically with virtual local area networks
(VLAN).
You should maintain online and paper copies of your device configuration information. Ensure that all
online data is stored with the regular data backup for your site. If your site has no backup system, copy
the information onto a backup medium and store the backup offsite.
Store passwords in a safe place. Keep records of your previous passwords because, if you must restore
a device to a previous software version, you must use the password that was valid for that version.
Maintain a device inventory that lists all devices and relevant information for your network so you can
easily determine device types, IP addresses, ports, MAC addresses, and attached devices.
If your hubs or switches are not managed, you must keep a list of the MAC addresses that correlate to
the ports on your hubs and switches.
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