-----------------------------------------------------------------------20416 1 18 IP 0x0 0 0 23.64.0.5/32 0.0.0.0/0 20 220417 1 18 IP 0x0 0 0 0.0.0.0/0 0.0.0.0/0 - 020418 1 0 IP 0x0 0 0 23.64.0.2/32 0.0.0.0/0 10 120419 1 0 IP 0x0 0 0 0.0.0.0/0 0.0.0.0/0 - 020420 1 0 IP 0x0 0 0 23.64.0.3/32 0.0.0.0/0 12 120421 1 0 IP 0x0 0 0 0.0.0.0/0 0.0.0.0/0 - 020422 1 10 0 0x0 0 0 0.0.0.0/0 0.0.0.0/0 14 124511 1 0 0 0x0 0 0 0.0.0.0/0 0.0.0.0/0 - 0In the previous example, the ClassAF1 does not classify traffic as intended. Traffic matching the firstmatch criteria is classified to Queue 1, but all other traffic is classified to Queue 0 as a result of CAM entry20419.When you remove the explicit “deny any” rule from all three ACLs, the CAM reflects exactly the desiredclassification.The following example shows correct traffic classifications.Dell#show cam layer3-qos interface tengigabitethernet 2/4/1Cam Port Dscp Proto Tcp Src Dst SrcIp DstIp DSCP QueueIndex Flag Port Port Marking-------------------------------------------------------------------------20416 1 18 IP 0x0 0 0 23.64.0.5/32 0.0.0.0/0 20 220417 1 0 IP 0x0 0 0 23.64.0.2/32 0.0.0.0/0 10 120418 1 0 IP 0x0 0 0 23.64.0.3/32 0.0.0.0/0 12 120419 1 10 0 0x0 0 0 0.0.0.0/0 0.0.0.0/0 14 124511 1 0 0 0x0 0 0 0.0.0.0/0 0.0.0.0/0 - 0Dot1p to Queue Mapping RequirementThe dot1p to queue mapping on the system is global and this is used to configure the PRIO2COS tableconfiguration. For DSCP based PFC feature on untagged packets, this mapping must be the same as thedefault dot1p to queue mapping and should not be changed (as in TABLE 1). If a custom dot1p to queuemapping is present it should be reconfigured to the default dot1p to queue mapping.• Currently Dell Networking OS supports matching only the following TCP flags:– ACK– FIN– SYN– PSH– RST– URGIn the existing software, ECE/CWR TCP flag qualifiers are not supported.• Because this functionality forcibly marks all the packets matching the specific match criteria as‘yellow’, Dell Networking OS does not support Policer based coloring and this feature concurrently.• If single rate two color policer is configured along with this feature, then by default all packets lessthan PIR would be considered as “Green” But ‘Green’ packets matching the specific match criteria forwhich ‘color-marking’ is configured will be over-written and marked as “Yellow”.714 Quality of Service (QoS)
