CIR/Bc problems in Cisco3745 routers

[rmballesteros]

We are experimenting problems with our Cisco routers connected to our Frame-Relay network. The problem is that the router do not accomplish values of CIR/Bc configured in "map-class" statments. The routers do not discard any packet when CIR is overcome.

The configuration of one of our routers is a serial interface with "encapsulation frame-relay", working as DTE, "frame-relay class clase1", "frame-relay map ip 10.a.b.c 100 broadcast".

Any help?

Thanks

[vmoopeung]

Frame Relay Traffic Policing provides a mechanism to rate-limit packets on switched PVCs using a "leaky-bucket" implementation. When enabled, Traffic Policing prevents traffic congestion by discarding or setting the Discard Eligible (DE) bit on packets that exceed specified traffic parameters. Traffic Policing parameters can be specified per DCE interface, or per switched PVC, using the 'map class' mechanisms.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/products_feature_guide09186a00800e955b.html#wp1070796

The Class-Based Policer for the DiffServ AF PHB feature is based on RFC 2697 A Single Rate Three Color Marker. The packet stream is metered and packets are marked "conform," "exceed," or "violate." Marking is based on a Committed Information Rate (CIR) and two associated burst sizes, a Committed Burst Size (CBS) and an Excess Burst Size (EBS). A packet is marked "conform" if it does not exceed the CBS, "exceed" if it exceeds the CBS but not the EBS, and "violate" otherwise.