Context
interface:Serial (DS1 PPP L2-L3, DS1 PPP L2, USP PPP L2, USP PPP L2-L3), FastEthernet (L2, L2-L3) - when traffic shaping is configured, Serial (DS1 FR L2, USP FR L2) - when Frame Relay Traffic Shaping is not configured, map-class frame-relay, Dialer (L2, L2-L3)
Note:
This command is also used in Serial and WAN FastEthernet context when traffic shaping is configured.