System

System-level configuration.

CPPM (Control Plane Protection Manager)

Rate-limits control plane traffic to protect the CPU from excessive packet rates.

Field	Type	Description	Example
dataplane	PlaneConfig	Policers for dataplane-originated control packets
controlplane	PlaneConfig	Policers for control plane packets

Plane Config

Each plane contains a policer map keyed by protocol or traffic type.

Field	Type	Description	Example
policer	Policer	Policer name to rate-limit configuration

Supported Policer Names

Name	Description	Default Rate	Default Burst
dhcpv4	DHCPv4 packets	1000	100
dhcpv6	DHCPv6 packets	1000	100
arp	ARP packets	500	50
pppoe	PPPoE packets	2000	200
ipv6-nd	IPv6 Neighbor Discovery packets	500	50
l2tp	L2TP packets	500	50

Policer

Field	Type	Description	Example
rate	float	Maximum packet rate in packets per second	1000
burst	int	Maximum burst size in packets	100

Example

system:
  cppm:
    dataplane:
      policer:
        arp:
          rate: 1000
          burst: 100
        dhcpv4:
          rate: 1000
          burst: 100
        dhcpv6:
          rate: 1000
          burst: 100
        pppoe:
          rate: 2000
          burst: 200
        ipv6-nd:
          rate: 500
          burst: 50
        l2tp:
          rate: 500
          burst: 50