Frame Relay Traffic Shaping - Part III

A short post just to clarify a couple of frame relay traffic shaping features...

The minimum time slice on a Frame Relay interface is 10ms or 1/100 of a second. Hence to set the time slice on the interface to be the minimum, simply divide the CIR by 100.

As a further note....If there is a requirement to ensure that a single packet cannot take more than one interval to be transmitted, divide the bc by 8 to get the number of bytes and then set the fragment size to this. For example

map-class frame-relay DLCI_304
frame-relay cir 256000
frame-relay bc 2560
frame-relay fragment 320