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

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Configure the customer VLAN ID:

    auto-sense voice i-sid <1-15999999> c-vid <1-4094>

  3. Configure the traffic as untagged:

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

    Note

    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".