Avaya ERS 2500, Troubleshooting Manual

Page: 43 / 90

Chapter 9: Troubleshooting ADAC
Automatic Detection and Automatic Configuration (ADAC) can encounter detection and configuration
errors that can be easily corrected.
ADAC clarifications
ADAC VLAN settings are dynamic and are not saved to nonvolatile memory . When ADAC is enabled, all
VLAN settings that you manually made on ADAC uplink or telephony ports are dynamic and are not saved
to non-volatile memory. When the unit is reset, these settings are lost. ADAC detects the ports again and
re-applies the default settings for them.
You do not manually create a VLAN to be used as the voice VLAN and then try to set this VLAN as the
ADAC voice VLAN using the command
adac voice-vlan x
. ADAC automatically creates the voice
VLAN when needed. You only have to reserve or set the VLAN number used by ADAC with the
adac
voice-vlan x
command.
After the VLAN number is reserved as the ADAC voice VLAN using the
adac voice-vlan x
command,
even if the ADAC administrative status is disabled or ADAC is in UTF mode, the VLAN number cannot
be used by anyone else in regular VLAN creation.
If you enable the LLDP detection mechanism for telephony ports, then LLDP itself has to be enabled on
the switch. Otherwise, ADAC does not detect phones.
Work flow: Troubleshooting ADAC
The following work flow assists you to identify the type of problem you are encountering.
Figure 17: Troubleshooting ADAC
Navigation
• IP phone is not detected on page 44
• Auto configuration is not applied on page 49
Troubleshooting November 2010 43