Alcatel-Lucent 6850-48 Network Guide

Configuring Authenticated VLANs

Configuring the Server Authority Mode

OmniSwitch AOS Release 6 Network Configuration Guide

page 36-33

To configure authentication in single mode, use the aaa authentication vlan command with the 
single-mode keyword and name(s) of the relevant server and any backups. At least one server must be 
specified; the maximum is four servers. For example:

-> aaa authentication vlan single-mode ldap1 ldap2

In this example, authenticated VLANs are enabled on the switch in single mode. All authenticated VLANs 
on the switch will use ldap1 to attempt to authenticate users. If ldap1 becomes unavailable, the switch 
will use backup server ldap2. Both servers contain user information, including which VLANs users may 
be authenticated through. (The servers must have been previously set up with the aaa ldap-server 
command. For more information about setting up authentication servers, see 

To disable authenticated VLANs, use the no form of the command. Note that the mode does not have to 
specified. For example:

-> no aaa authentication vlan