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Figure 25. CoPP Implemented Versus CoPP Not Implemented
Topics:
• Congure Control Plane Policing
• Conguring CoPP for Protocols
• Conguring CoPP for CPU Queues
• Show Commands
Congure Control Plane Policing
The S5000 can process a maximum of 4200 packets per second (PPS). Protocols that share a single queue may experience aps if one of
the protocols receives a high rate of control trac even though Per Protocol CoPP is applied. This happens because Queue-Based Rate
Limiting is applied rst.
For example, border gateway protocol (BGP) and internet control message protocol (ICMP) share same queue (Q6); Q6 has 400 PPS of
bandwidth by default. The desired rate of ICMP is 100 PPS and the remaining 300 PPS is assigned to BGP. If ICMP packets come at 400
PPS, BGP packets may be dropped though ICMP packets are rate-limited to 100 PPS. You can solve this by increasing Q6 bandwidth to
700 PPS to allow both ICMP and BGP packets and then applying per-ow CoPP for ICMP and BGP packets. The setting of this Q6
bandwidth depends the incoming trac for the set of protocols sharing the same queue. If you are not aware of the incoming protocol
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Control Plane Policing (CoPP)