Protocol To Cpu Queue Mapping; Configuring Protocol To Cpu Queue Mapping - Dell S6100 Configuration Manual

The following example shows creating the control plane service policy.
Dell#conf
Dell(conf)#control-plane
Dell(conf-control-plane)#service-policy rate-limit-cpu-queues cpuq_rate_policy

Protocol to CPU Queue Mapping

CoPP enables you to rate-limit control-plane packets that are destined to the CPU there by, preventing undesired or malicious traffic from
entering the CPU queues. You can rate-limit CPU bound traffic both on a per protocol as well as per queue basis.
When packets ingress through any of the front-end ports, the system identifies the packets that are CPU bound based on the protocol
configurations. Packets bound to the CPU are also identified based on the packet-type such as ttl0, ttl1, and so on. These packets are then
re-directed to the CPU on predefined CPU queues. This type of Control traffic re-direction is achieved using ACLs or through the protocol-
to-queue table that is maintained in BCM.
The following table shows the default protocol to CPU queue mapping:
Table 13. Protocol to CPU Queue Mapping
CPU Weig CPU Queue
Queu ht Rate Shape
e (PPS Rate)
0 1 600
1 2 1000
2 4 300
3 64 1300
4 127 2000
5 8 400
6 64 400
7 64 400
8 64 600
9 64 600
10 64 600
11 64 300

Configuring Protocol to CPU Queue Mapping

You can configure the mapping between CPU queues and the protocols that can be assigned to each CPU queue. This feature enables you
to optimize buffer usage and control the security related aspects corresponding to the control traffic.
To configure CPU bound control-plane traffic to map to specific CPU queues:
1 Create a CPU protocol group.
CONFIGURATION
cpu-protocol-group group-name
A CPU protocol group is created and the command mode changes to CPU-PROTOCOL-GROUP mode.
2 Create a protocol list.
Protocol
TTL0, TTL1, IP-OPTS,L2-SRC-MISS,L2-ACL-LOG,ICMP-REDIRECT
SFLOW, L3-MTU-FAIL
MCAST, BCAST-CTRL
BFD
VLT
ARP-REQ,ICMP-RA, ICMP-NA,ISCSI
ARP-RSP, NTP, ICMP, ICMP-RS, ICMP-NS, FTP, TELNET, SSH, L3-LOCAL-TERM, DAI
xSTP, LACP, 802DOT1X, TRILL, L2PT, ECFM
LLDP, PVST, GVRP, FEFD, TRACEFLOW, FCoE
BGP, OSPF, IPV6-TUNNEL, IPV6-VRRP, RIP, ISIS
IPV4-VRRP, DHCP
MLD, PIM, MSDP
Control Plane Policing (CoPP) 243