Feng Gang National Laboratory of Communication,UESTC Aug 2017 Ver 1.4 Degree of aggregation Degree of discrimination in selecting a packet to drop E.g.in vanilla FIFO,all packets are in the same class Instead,can classify packets and drop packets selectively The finer the classification the better the protection Max-min fair allocation of buffers to classes drop packet from class with the longest queue(why?) 2616009:Network Traffic Engineering 5:Buffer Management Page.52616009: Network Traffic Engineering Feng Gang National Laboratory of Communication, UESTC Aug 2017 Ver 1.4 5: Buffer Management Page.5 Degree of aggregation • Degree of discrimination in selecting a packet to drop • E.g. in vanilla FIFO, all packets are in the same class • Instead, can classify packets and drop packets selectively • The finer the classification the better the protection • Max-min fair allocation of buffers to classes - drop packet from class with the longest queue (why?)