AudioCodes Mediant 500L - Configuring Diffserv-To-VLAN Priority Mapping

User's Manual 164 Document #: LTRT-10532
Mediant 500L Gateway & E-SBC
 To configure DiffServ (Layer-3 QoS) values per CoS:
1. Open the QoS Settings page (Setup menu > IP Network tab > Quality folder > QoS
Settings).
2. Click New; the following dialog box appears:
Figure 12-12: Configuring Class of Service
3. Configure DiffServ values per CoS according to the parameters described in the table
below.
4. Click Apply, and then save your settings to flash memory.
Table 12-17: QoS Settings Parameter Descriptions
Parameter Description
Media Premium QoS
media-qos
[PremiumServiceClassMediaDiffServ]
Defines the DiffServ value for Premium Media CoS content.
The valid range is 0 to 63. The default is 46.
Note: You can also configure the the parameter per IP
Profile (IpProfile_IPDiffServ) or Tel Profile
(TelProfile_IPDiffServ).
Control Premium QoS
control-qos
[PremiumServiceClassControlDiffServ]
Defines the DiffServ value for Premium Control CoS content
(Call Control applications).
The valid range is 0 to 63. The default is 40.
Note: You can also configure the the parameter per IP
Profile (IpProfile_SigIPDiffServ) or Tel Profile
(TelProfile_SigIPDiffServ).
Gold QoS
gold-qos
[GoldServiceClassDiffServ]
Defines the DiffServ value for Gold CoS content (streaming
applications).
The valid range is 0 to 63. The default is 26.
Bronze QoS
bronze-qos
[BronzeServiceClassDiffServ]
Defines the DiffServ value for Bronze CoS content (OAMP
applications).
The valid range is 0 to 63. The default is 10.
12.9.2 Configuring DiffServ-to-VLAN Priority Mapping
The QoS Mapping table lets you configure up to 64 DiffServ-to-VLAN priority mapping for
Layer 3 and Layer-2 Quality of Service (QoS). For each packet sent to the LAN, the VLAN
Priority of the packet is set according to the DiffServ value in the IP header of the packet.
Layer-2 802.1Q frames have a 2-byte field called Tag Control Information. The three most
significant bits of this 2-byte field represents the Class of Service (CoS) value. Layer-2 QoS
is represented by this CoS value which is from 0 to 7 (thus 8 values). Layer-2 QoS