Dell S4148U-ON OS10 Enterprise Edition User Guide Release 10.4.0E R2 - Page 554

By default CoPP traffic towards the CPU is classified into different queues as shown in the following table. The protocols are listed in the order of low to high priority. Queue 0 Protocol IPv6 1 2 IGMP 3 VLT, NDS 4 ICMPv6, ICMPv4 5 ARP Requet, ICMPV6-RS-NS, ISCSI snooping, ISCSI-COS 6 ICMPv6-RA-NA, SSH, TELNET,TACACS, NTP,FTP 7 RSTP,PVST, MSTP,LACP 8 Dot1X,LLDP, FCOE-FPORT 9 BGPv4, OSPFv6 10 DHCPv6, DHCPv4, VRRP 11 OSPF Hello, OpenFlow See show control-plane info for information on the current protocol to queue mapping and the rate-limit configured per queue. Configure control-plane policing Rate-limiting the protocol CPU queues requires configuring control-plane type QoS policies. • Create QoS policies (class maps and policy maps) for the desired CPU-bound queue. • Associate the QoS policy with a particular rate-limit. • Assign the QoS service policy to control plane queues. By default, the pir and cir values are in packets per second (pps) for control plane. CoPP for CPU queues converts the input rate from kilobits per second (kbps) to packets per second (pps), assuming 64 bytes is the average packet size, and applies that rate to the corresponding queue - 1 kbps is roughly equivalent to 2 pps. 1 Create a class-map of type control-plane and configure a name for the class-map in CONFIGURATION mode. class-map type control-plane class-map-name 2 Return to CONFIGURATION mode. exit 3 Create an input policy-map to assign the QoS policy to the desired service queues in CONFIGURATION mode. policy-map type control-plane policy-map-name 4 Associate a policy-map with a class-map in POLICY-MAP mode. class class-name 5 Configure marking for a specific queue number in POLICY-MAP-CLASS-MAP mode (0 to 11). set qos-group queue-number 6 Configure rate policing on incoming traffic in POLICY-MAP-CLASS-MAP mode. police {cir committed-rate | pir peak-rate} 554 Quality of service