Netgear XSM4324FS Software Administration Manual Software Version 12.x - Page 45
Table 1., PVID and Tagging, Thus
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M4300 Series and M4300-96X Fully Managed Switches Regular data arriving on the switch is given the default priority of the port (default 0), and the voice traffic is received with higher priority. This segregates both the traffic to provide better service to the voice traffic. The switch can be configured to override the data traffic CoS. This feature enables overriding the 802.1P priority of the data traffic packets arriving at the port enabled for voice VLAN. Thus, a rogue client that is also connected to the voice VLAN port does not deteriorate the voice traffic. The table below describes how does PVID and tagging are handled by voice VLAN in the four modes. Table 1. PVID and Tagging Configure Voice Ingress Egress PVID VLAN = 4088, Data = VLAN Tag VLAN Tag 4000 Disable - Default No No 1 value None - Allow the IP No No 1 phone to use its own configuration to send untagged voice traffic VLAN ID - Enter the Voice VLAN ID in the Value field. Yes (VLAN= 4088, PRI=1) Yes (VLAN= 4088, PRI=1) 4000 dot1p - Configure Yes Voice VLAN 802.1p (VLAN=0, priority tagging for PRI=5) voice traffic. When this is selected, enter the dot1p value in the Value field. Yes (VLAN=0, PRI=5) 4000 Untagged - Configure No No the phone to send untagged voice traffic 4088 Comments No voice VLAN No special priority for voice, but user must configure data VLAN if it is not using default VLAN. • Voice VLAN automatically becomes part of tagged set for the port. VoIP traffic are expected to be received with this VLAN tag • Voice VLAN sets egress tagging for voice VLAN (4088) automatically • No priority is assigned by voice VLAN automatically. If the user want higher priority for voice traffic, user needs to manually configure it. This priority (dot1p) is conveyed from the Voice device as part of VLAN tag in the VoIP traffic. The user is not expected to configure any CoS on the port. • The user needs to configure dot1p priority value (e.g. 5). This value will be communicated to the VoIP device over LLDP. • Priority advertised is 0 by default • No need to set PVID for voice but may needed for data VLAN 4000. VLAN Id 0 will be communicated to the VoIP device. Note: For Voice VLAN feature, CoS override can be enabled for 8 ports only. VLANs 45 Software Administration Manual
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