3com 3CDSG10PWR Betriebsanweisung

C

HAPTER

 13: C

ONFIGURING

 Q

UALITY

 

OF

 S

ERVICE

The Voice VLAN OUI Modify Page allows network administrators to add 
new OUIs or to remove previously defined OUIs from the Voice VLAN. The 
OUI is the first half (three most significant bytes) of the MAC address and 
is manufacturer specific, while the last three bytes contain a unique 
station ID. The packet priority derives from the source/destination MAC 
prefix. The packet gets higher priority when there is a match with the OUI 
list. Using the OUI, network managers can add a specific manufacturer’s 
MAC addresses to the OUI table. Once the OUIs are added, all traffic 
received on the Voice VLAN ports from the specific IP phone with a listed 
OUI, is forwarded on the voice VLAN. 

To modify Voice VLAN OUI Settings:

1 Click Device > QoS > VoIP Traffic Setting > OUI Modify. The Voice 

VLAN OUI Modify Page opens:

Figure 91   Voice VLAN OUI Modify Page

The Voice VLAN OUI Modify Page contains the following fields: 

■

Telephony OUI — Defines a new or existing OUI on the Voice VLAN. 
The field contains the 3 most significant bytes of the MAC address.

■

Description — Enters a user-defined OUI description. The field may 
contain up to 32 characters.

■

Add — Allows the user to add a new OUI.

■

Remove — Allows the user to delete an existing OUI.