Netgear XCM8806 Chassis User Manual - Page 365
Port-Based Traffic Groups, Precedence of Traffic Groups, Configuring a DiffServ-Based Traffic Group
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NETGEAR 8800 User Manual Warning: Port belongs to more than one VR. Port properties related to diff serv and code replacement will not take effect. You do not need to define these traffic groups. You can enable or disable the use of these traffic groups by enabling or disabling the DiffServ examination feature as described in Configuring a DiffServ-Based Traffic Group on page 381. You can also configure which DSCP values map to which queues. Note: When DiffServ examination is enabled on 1 Gigabit Ethernet ports for NETGEAR 8800 series switches, 802.1p replacement is enabled and cannot be disabled. The ingress 802.1p value is replaced with the 802.1p value assigned to the egress QoS profile. A related feature is the DiffServ replacement feature, which allows you to configure the software to replace the DSCP in an ingress frame with a different value in the egress frame. For more information on DiffServ replacement, see Configuring 802.1p or DSCP Replacement on page 374. Port-Based Traffic Groups Port-based traffic groups forward traffic to egress QoS profiles based on the incoming port number. There are no default port-based traffic groups. You must configure each port-based traffic group. Note: Port-based traffic groups apply to all packets. VLAN-Based Traffic Groups VLAN-based traffic groups forward traffic to egress QoS profiles based on the VLAN membership of the ingress port. There are no default VLAN-based traffic groups. You must configure each VLAN-based traffic group. Note: VLAN-based traffic groups apply to all packets. Precedence of Traffic Groups The XCM8800 software allows you to define multiple traffic groups, and you can configure traffic groups in such a way that multiple traffic groups apply to an ingress frame or packet. When an ingress frame or packet matches two or more traffic groups, the software chooses Chapter 15. QoS | 365
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