Configure Auto-sense Voice Information for IP Phones

The switch applies the voice configuration on Auto-sense-enabled ports, after it discovers IP phones on the port through Link Layer Discovery Protocol (LLDP) packets.

Before you begin

If you boot the switch with a configuration file, and not through Zero Touch Fabric Configuration, you must manually enable Auto-sense on specific ports.

About this task

Perform this procedure to configure Auto-sense voice information for IP phones.

A global Auto-sense voice configuration does not require Auto-sense LLDP authentication based on the following cases.

In a non NAC, a phone is classified based on the phones LLDP signaling.
In a NAC, a phone is authenticated based on EAP/NEAP radius authenticated, or if configured, it is LLDP authenticated

Procedure

Enter Global Configuration mode:

enable

configure terminal
Configure the customer VLAN ID:

auto-sense voice i-sid <1-15999999> c-vid <1-4094>
Configure the traffic as untagged:

auto-sense voice i-sid <1-15999999> untagged

Note

The phone receives VLAN ID as 0 and the tagging is configured as "untagged".

Example

Configure VLAN tagging as untagged:

Switch:1>enable
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#auto-sense voice i-sid 1234 untagged

Variable Definitions

The following table defines parameters for the auto-sense voice command.


Variable	Value
i-sid`<1-15999999>`	Specifies the service instance identifier (I-SID).
c-vid`<1-4094>`	Specifies the customer VLAN ID.
untagged	Specifies the VLAN tagging type as untagged. Note: The phone receives VLAN ID as 0 and the tagging is configured as "untagged".