
190 Chapter 8: Layer 2 QoS: Interworking with IP QoS
NOTE In case of unidirectional traffic, the traffic-shape adaptive command is needed on the
router sourcing the traffic, and the traffic-shape fecn-adapt command is used to send a
Q.922 test frame
4
with the BECN bit set in response to an FECN.
Frame Relay Fragmentation
At the output queue of a PVC on a router, large packets that were queued ahead of small,
delay-sensitive packets contribute to increased delay and jitter for the small packets. This
behavior is due to the larger transmission delay for a large packet compared to a small
packet. Transmission delay is discussed in Chapter 1, “Introducing ...