Supported Protocols - Cisco ASR 920 Series Configuration Manual

Control Plane Policing
after a specified rate limit has been reached; for example, a system administrator can limit all TCP/TELNET
packets that are destined for the control plane.
Figure 1: Abstract Illustration of a Router with a Single RP and Forwarding Plane
The figure above provides an abstract illustration of the router with a single RP and forwarding plane. Packets
destined to the control plane come in through the carrier card and then go through the forwarding plane before
being punted to the RP. When an input QoS policy map is configured on the control plane, the forwarding
plane performs the QoS action (for example, a transmit or drop action) before punting packets to the RP in
order to achieve the best protection of the control plane in the RP.
As shown in "Control Plane Policing Overview" section, the control plane interface is directly connected
Note
to the RP, so all traffic through the control plane interface to or from the control-plane is not subject to
the CoPP function performed by the forwarding plane.

Supported Protocols

The following table lists the protocols supported on Control Plane Policing feature.
Supported Protocols
TFTP - Trivial FTP
TELNET
Criteria Match
IP/Port Match permit udp 64.202.160.0
0.0.1.255 eq 69 any
permit udp 64.202.160.0
0.0.1.255 any eq 69
IP/Port Match permit tcp 169.223.252.0
0.0.3.255 host
169.223.253.1 eq telnet
permit tcp 169.223.252.0
0.0.3.255 eq telnet host
169.223.253.1
QoS: Policing and Shaping Configuration Guide (Cisco ASR 920 Series)
Supported Protocols
Queue#
NQ_CPU_HOST_Q
NQ_CPU_CONTROL_Q
31