Netgear XCM8806 Chassis User Manual - Page 374
Configuring 802.1p or DSCP Replacement, Replacing 802.1p Priority Information on Egress
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NETGEAR 8800 User Manual To select the QoS scheduling method for a switch, use the following command: configure qosscheduler [strict-priority | weighted-round-robin] To override the weighted-round-robin switch configuration on a specific QoS profile, use the following command: configure qosprofile use-strict-priority Configuring 802.1p or DSCP Replacement The following sections provide information on 802.1p priority replacement and DSCP replacement: • Replacing 802.1p Priority Information on Egress on page 374 • Replacing a DSCP on Egress on page 375 • DiffServ Example on page 377 Replacing 802.1p Priority Information on Egress By default, 802.1p priority information is not replaced or manipulated, and the information observed on ingress is preserved when forwarding the frame. This behavior is not affected by the switching or routing configuration of the switch. However, the switch is capable of inserting and/or overwriting 802.1p priority information when it transmits an 802.1Q tagged frame as described in the following sections: • Replacement in ACL-Based Traffic Groups on page 374 • Replacement in Non-ACL-Based Traffic Groups on page 374 Replacement in ACL-Based Traffic Groups If you are using ACL-based traffic groups, you can use the replace-dot1p action modifier to replace the ingress 802.1p priority value with the 802.1p priority value of the egress QoS profile as listed in Table 45. To specify a specific 802.1p priority value on egress, use the replace-dot1p-value action modifier. Note: If you are using ACL-based traffic groups, you must use ACL action modifiers to replace the 802.1p priority. Traffic that meets any ACL match conditions is not subject to non-ACL-based 802.1p priority replacement. Replacement in Non-ACL-Based Traffic Groups For non-ACL-based traffic groups, you can enable or disable 802.1p priority replacement on specific ingress ports. When 802.1p priority replacement is enabled, the default egress 802.1p priority value is set to the priority value of the egress QoS profile as listed in Table 45. 374 | Chapter 15. QoS
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