41Figure 11 Schematic diagram for GTSTokenbucketPackets droppedPacketclassificationPackets to be sentthrough this interfacePackets sentTokens are put into thebucket at the set rateQueueFor example, in Figure 12, Switch A sends packets to Switch B. Switch B performs traffic policing onpackets from Switch A and drops packets exceeding the limit.Figure 12 GTS applicationYou can perform traffic shaping for the packets on the outgoing interface of Switch A to avoidunnecessary packet loss. Packets exceeding the limit are cached in Switch A. Once resources arereleased, traffic shaping takes out the cached packets and sends them out. All the traffic sent to Switch Bconforms to the traffic specification defined in Switch B.Line rateNOTE:Line rate rate-limits the inbound and outbound traffic. The outbound traffic is taken for example.The line rate of a physical interface specifies the maximum rate for forwarding packets (including criticalpackets).Line rate also uses token buckets for traffic control. With line rate configured on an interface, all packetsto be sent through the interface are handled by the token bucket at line rate. When the token bucket hasenough tokens, packets can be forwarded; otherwise, packets are put into QoS queues for congestionmanagement. The traffic passing the physical interface is controlled.
