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1.
Configure one to one mapping between 802.1p priority and COS Queue on the ingress port. Frames with
802.1p priority 1 are assigned to COS 1 queue and similarly frames with 802.1p priority 2 are assigned to
COS2 and so on.
(QCT) (Config)#queue cos-map all 0 0
(QCT) (Config)#queue cos-map all 1 1
(QCT) (Config)#queue cos-map all 2 2
(QCT) (Config)#queue cos-map all 3 3
(QCT) (Config)#queue cos-map all 4 4
(QCT) (Config)#queue cos-map all 5 5
(QCT) (Config)#queue cos-map all 6 6
(QCT) (Config)#queue cos-map all 7 7
2.
Enable 802.1p Trust mode on all the ports.
(QCT) (Config)#interface range 0/1-0/16
(QCT) (Interface 0/1-0/16)#queue trust dot1p
(QCT) (Interface 0/1-0/16)#exit
3.
Configure the mapping between COS queues and Traffic Classes Groups. Configure the Traffic Class Group
that such 802.1p priority 4 is assigned to TCG1 and 802.1p priority 1 is assigned to TCG2 so that less loss
sensitive traffic does not starve the loss sensitive traffic even during traffic bursts. Assign 802.1p priority 7
traffic to TCG0.
(QCT) (Config)#classofservice traffic-class-group 4 1
(QCT) (Config)#classofservice traffic-class-group 1 2
(QCT) (Config)#classofservice traffic-class-group 7 0
4.
Enable VLAN tagging on the ports so the 802.1p priority is identified. The interfaces in this example are
members of VLAN 100, which has been previously configured.
(QCT) (Config)#interface range 0/1-0/16
(QCT) (Interface 0/1-0/16)#switchport allowed vlan add tagged 100
(QCT) (Interface 0/1-0/16)#exit
5.
Configure the weight percentage of TCG0 to 10%, and the weights of TCG1 and TCG2 to 45% each.
(QCT) (Config)#traffic-class-group weight 10 45 45
6.
Associate weighted round robin scheduling with TCG1 and TCG2.
(QCT) (Config)#no traffic-class-group strict 1 2
7.
Configure TCG0 for strict priority scheduling.
(QCT) (Config)#traffic-class-group strict 0
8.
Associate TCG0 with CoS queue 7 so that it serves the high priority internal control traffic with CoS 7.
(QCT) (Config)#classofservice traffic-class-group 7 0
9.
Configure the minimum bandwidth percentage for all the TCGs to be zero.
Summary of Contents for QuantaMesh QNOS5
Page 1: ...QuantaMesh Ethernet Switch Configuration Guide QNOS5 NOS Platform ...
Page 209: ...209 Table 7 8 IPv6 Neighbor Discovery Settings ...
Page 226: ...226 Table 8 2 L3 Multicast Defaults ...
Page 254: ...254 Appendix A Term and Acronyms Table 9 5 Terms and Acronyms ...