Number | OUI Address | Vendor |
2 | Cisco phone | |
|
|
|
3 | Avaya phone | |
|
|
|
4 | Philips/NEC phone | |
|
|
|
5 | Pingtel phone | |
|
|
|
6 | Polycom phone | |
|
|
|
7 | 3com phone | |
|
|
|
Table
¾Port Voice VLAN Mode
A voice VLAN can operate in two modes: automatic mode and manual mode.
Automatic Mode: In this mode, the switch automatically adds a port which receives voice packets to voice VLAN and determines the priority of the packets through learning the source MAC of the UNTAG packets sent from IP phone when it is powered on. The aging time of voice VLAN can be configured on the switch. If the switch does not receive any voice packet on the ingress port within the aging time, the switch will remove this port from voice VLAN. Voice ports are automatically added into or removed from voice VLAN.
Manual Mode: You need to manually add the port of IP phone to voice VLAN, and then the switch will assign ACL rules and configure the priority of the packets through learning the source MAC address of packets and matching OUI address.
In practice, the port voice VLAN mode is configured according to the type of packets sent out from voice device and the link type of the port. The following table shows the detailed information.
| Port Voice |
|
| Voice |
| Link type of the port and processing mode |
| VLAN Mode |
|
| Stream Type |
| |
|
|
|
|
| ||
|
|
|
| TAG voice |
| Untagged: Not supported. |
|
|
|
|
|
| |
|
|
|
|
| Tagged: Supported. The default VLAN of the port can not be | |
|
|
|
| stream |
| |
| Automatic Mode |
|
| voice VLAN. | ||
|
|
|
| UNTAG voice |
| Untagged: Supported. |
|
|
|
| stream |
| Tagged: Not supported. |
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| TAG voice |
| Untagged: Not supported. |
|
|
|
|
|
| |
|
|
|
|
| Tagged:Supported. The default VLAN of the port should not | |
|
|
|
| stream |
| |
| Manual Mode |
|
|
|
| be voice VLAN. |
|
|
|
| UNTAG voice |
| Untagged: Supported. |
|
|
|
| stream |
| Tagged: Not supported. |
|
|
|
|
|
| |
|
|
|
|
| ||
|
| Table |
102