D-Link DWS-4026 User Manual page 555

Software User Manual
12/10/09
3 Go to the LAN > QoS > Differentiated Services > DiffServ Configuration page and enable DiffServ for the switch.
4 Go to the LAN > QoS > Differentiated Services > Class Configuration page, select Create from the Class Selector
field, enter class_voip in the Class Name field, select All as the Class Type, and then click Submit.
5 Select IPv4 as the Class Layer 3 Protocol, and then click Submit.
6 Select Protocol from the Class Match Selector menu, and then click Add Match Criteria.
7 Select UDP from the Protocol Keyword menu, and then click Submit.
8 Create a second DiffServ classifier named class_ef and define a single match criterion to detect a DiffServ code point
(DSCP) of ef (expedited forwarding).
This handles incoming traffic that was previously marked as expedited elsewhere in the network.
Document 34CSFP6XXUWS-SWUM100-D7
D-Link Unified Access System
Configuring Differentiated Services for VoIP Page 555