- Alcatel Internetworking, Inc. Switch Troubleshooting Guide
OmniSwitch Troubleshooting Guide September 2005 page 8-1
8 Troubleshooting 802.1Q
In order to troubleshoot an 802.1Q problem on a port, a basic understanding of the networking OSI model 
is required to assist one with the troubleshooting steps to resolve a particular network problem. 
Alcatel’s OmniSwitch supports 802.1Q specifications as defined by RFC 2674/IEEE 802.1Q/D11.
Reading the “Configuring 802.1Q” in the appropriate OmniSwitch Network Configuration Guide is also 
highly recommended.
In This Chapter
“Troubleshooting 802.1Q” on page 8-2
“Advanced Troubleshooting” on page 8-5
“Dshell Commands” on page 8-7










