Huawei AR3200 Series - Optional) Configuring an 802.1 P Priority and a DSCP Value for the Voice VLAN

The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
3. Run:
voice-vlan mode manual
The mode used to add the interface to the voice VLAN is set to manual.
By default, an interface can be added to the voice VLAN automatically.
4. Depending on the type of interface, refer to the following sections to add the interface
to the voice VLAN:
– To add an access interface to the voice VLAN, see 3.4.2 Adding an Access
Interface to a VLAN.
– To add a trunk interface to the voice VLAN, see 3.4.3 Adding a Trunk Interface
to a VLAN.
– To add a hybrid interface to the voice VLAN, see 3.4.4 Adding a Hybrid Interface
to a VLAN.
----End
4.3.5 (Optional) Configuring an 802.1p Priority and a DSCP Value
for the Voice VLAN
Different 802.1p priorities and DiffServ Code Point (DSCP) values can be configured for
different voice VLANs, which makes voice service deployment more flexible.
Context
By default, the 802.1p priority and DSCP value for each voice VLAN are 6 and 46 respectively.
Manual configuration of the 802.1p priority and DSCP value will allow you to plan priorities
for different voice services at will.
NOTE
l The 802.1p priority is indicated by the value in the 3-bit PRI field in each 802.1Q VLAN frame. This
field determines the transmission priority for data packets when a switching device is congested.
l The DSCP value is indicated by the 6 bits in the Type of Service (ToS) field in the IPv4 packet header.
DSCP, as the signaling for DiffServ, is used for QoS guarantee on IP networks. The traffic controller
on the network gateway takes actions merely based on the information carried by the 6 bits.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
voice-vlan remark { 8021p 8021p-value | dscp dscp-value }
*
An 802.1p priority and a DSCP value are configured for a voice VLAN.
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 4 Voice VLAN Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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