Netgear XSM4324FS Software Administration Manual Software Version 12.x - Page 266

M4300 Series and M4300-96X Fully Managed Switches A screen similar to the following displays. b. Scroll down and select the Interface 1/0/2 check box. Now 1/0/2 appears in the Interface field at the top. c. In the Policy In list, select pol_voip. d. Click Apply to create a new policy. Auto VoIP The Auto VoIP feature makes it easy to set up voice over IP (VoIP) for IP phones on a switch. From software release 10.0.0 on, the switch supports both protocol-based and OUI-based Auto-VoIP configurations. Protocol-Based Auto VoIP In a VoIP system, various signaling protocols are used to establish the connection between two VoIP devices. Protocol-based Auto VoIP provides a better class of service (CoS) to data and signaling VoIP streams than to other traffic. The supported signaling protocols are Session Initiation Protocol (SIP), H.323, and Skinny Call Control Protocol (SCCP). Depending on your configuration, after VoIP packets are identified, the switch takes the following actions: • If you enable remarking, the switch remarks the voice traffic 802.1p priority with the configured priority at the ingress port to ensure that voice traffic always receives the highest priority throughout the network. You must enable egress tagging on the appropriate uplink port to let the switch carry the remarked priority to the egress port. • If you assign a queue, make sure that you allocate sufficient bandwidth to the queue to fullfil the priority treatment for VoIP traffic. DiffServ 266 Software Administration Manual