Configure Frame Relay QoS 265

Numerically, the value of CBS should not be less than CIR ALLOW, otherwise, the large packets may not be sent.

Configure Frame Relay Traffic Policing

Frame Relay traffic policing configuration includes:

Enable the Frame Relay traffic policing

Create a Frame Relay class

Associate the Frame Relay class with the Frame Relay interface or a PVC

Configure the parameters of Frame Relay class for Frame Relay traffic policing

1Enable the Frame Relay Traffic Policing

Perform the following configurations in synchronous serial interface view.

Table 303 Enable/Disable the Frame Relay traffic policing

Operation

Command

 

 

Enable the Frame Relay traffic policing

fr traffic-policing

 

 

Disable the Frame Relay traffic policing

undo fr traffic-policing

 

 

By default, the Frame Relay traffic policing is not enabled on the interface.

The function of Frame Relay traffic policing is applied on the interface receiving the Frame Relay packets on a router. It can only be applied at the DCE side on a Frame Relay network.

2Create a Frame Relay class

Please refer to the above section “Configure Frame Relay class” for the configuration procedure in detail.

3Associate the Frame Relay class with the Frame Relay interface or a PVC

Please refer to the above section “Configure Frame Relay class” for the configuration procedure in detail.

4Configure the parameters of Frame Relay class for Frame Relay traffic policing Perform the following configurations in frame relay class view.

Table 304 Configure the parameters of Frame Relay class

Operation

Command

 

 

Set the CBS of a Frame Relay PVC

cbs [ inbound ] burst-size

 

 

Restore the CBS of a Frame Relay PVC to the default

undo cbs [ inbound ]

value

 

 

 

Set the EBS of a Frame Relay PVC

ebs [ inbound ]

 

excess-burst-size

 

 

Restore the EBS of a Frame Relay PVC to the default

undo ebs [ inbound ]

value

 

 

 

Set the CIR ALLOW of a Frame Relay PVC

cir allow [ inbound ]

 

rate-limit

 

 

Restore the CIR ALLOW of a Frame Relay PVC to the

undo cir allow [ inbound ]

default value

 

 

 

The commands cbs, ebs, and cir allow can be used to set the inbound and outbound parameters on a PVC. However, only the inbound parameters are effective for the Frame Relay traffic policing.

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3Com 10014299 manual Enable/Disable the Frame Relay traffic policing