Troubleshooting Guide

Chapter 28: Troubleshooting Fabric Attach
The following sections help you troubleshoot problems with Fabric Attach (FA) using either the
Avaya Command Line Interface (ACLI) or the Enterprise Device Manager (EDM).
Troubleshooting workflow
Troubleshoot FA in the following sequence:
• Verify FA configuration:
As a first step, for proper operation, verify that FA is enabled properly at both the global and
interface levels. Use the procedures in this section to verify FA configuration.
• Verify LLDP port-level transmission and reception:
LLDP operates at the interface level. Enabling FA at the port level automatically enables LLDP
transmission and reception at the port level. Similarly, enabling FA at the MLT level
automatically enables LLDP transmission and reception for all ports in that MLT. Use the
procedures in this section to verify LLDP interface (port or MLT) statistics.
• Verify FA discovery, I-SID-to-VLAN mapping assignments and Switched UNI I-SID
creation:
After you verify LLDP transmission, verify that FA element discovery completed successfully.
After a successful FA discovery, FA clients can send I-SID-to-VLAN mapping assignments to
the FA Server on an FA-enabled port or MLT. The FA server accepts or rejects these mapping
assignments. A prerequisite to successful mapping assignments is that IS-IS and SPBM are
properly configured on the FA server. Successful FA mappings result in the creation of ELAN I-
SIDs with end-points of type Switched UNI on the FA Server switch.
Troubleshooting Fabric Attach using the ACLI
Verify configuration of Fabric Attach
Viewing Fabric Attach configuration
To operate properly, Fabric Attach (FA) must be configured properly at both the global and interface
level on the switch. Use this procedure to verify FA configuration.
January 2017 Troubleshooting 309
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