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Example of Applying a Queue-Based Rate Limit to Control Plane Traffic
Dell#conf
Dell(conf)#control-plane
Dell(conf-control-plane)#service-policy rate-limit-cpu-queues cpuq_rate_policy
Displaying CoPP Configuration
The CLI provides show commands to display the protocol traffic assigned to each control-plane queue and the current rate-limit
applied to each queue. Other show commands display statistical information for trouble shooting CoPP operation.
Viewing Queue Rates
To view the rates that are currently applied on each control-plane queue, use the show cpu-queue rate [all |
queue-id id | range from-queue to-queue] command.
Example of Viewing Queue Rates
DellEMC# show cpu-queue rate all
Service-Queue Rate (kbps) Burst (kb)
-------------- ----------- ----------
Q0 1000 1000
Q1 400 1000
Q2 1800 1000
Q3 1800 1000
Q4 2800 5000
Q5 300 2000
Q6 300 2000
Q7 3200 3000
Q8 400 1000
Q9 400 1000
Q10 1800 1000
Q11 1800 1000
Q12 2000 6000
Q13 5200 3000
Q14 1850 3000
Q15 12450 4000
Q16 1 100
Q17 1 100
Q18 1 100
Q19 1 100
Q20 600 1000
Q21 7000 7000
Q22 800 1000
Q23 5000 5000
To view the queue mapping for each configured protocol, use the show ip protocol-queue-mapping command.
Example of Viewing Queue Mapping
DellEMC#show ip protocol-queue-mapping
Protocol Src-Port Dst-Port TcpFlag Queue EgPort Rate (kbps)
-------- -------- -------- ------- ----- ------ -----------
TCP (BGP) any/179 179/any _ Q15 RP 2500
UDP (DHCP) 67/68 68/67 _ Q7 CP 1200
UDP (DHCP-R) 67 67 _ Q7 CP 1200
TCP (FTP) any 21 _ Q4 CP 400
ICMP any any _ Q6 CP 300
IGMP any any _ Q14 RP 300
TCP (MSDP) any/639 639/any _ Q14 RP 100
UDP (NTP) any 123 _ Q4 CP 200
OSPF any any _ Q15 RP 2500
PIM any any _ Q14 RP 300
UDP (RIP) any 520 _ Q15 RP 200
TCP (SSH) any 22 _ Q4 CP 400
Control Plane Policing (CoPP)
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