An expanding company is deploying leased lines between its main site and two remote sites. The bandwidth of the leased lines is 128kb/s each,terminated on different serial interfaces on the main router. These links are used for combined VOIP and data traffic. The network administrator has implemented a VOIP solution to reduce costs,and has therefore reserved sufficient bandwidth in a low latency queue on each interface for the VOIP traffic. Users now complain about bad voice quality although no drops are obse
A、mark VOIP traffic with IP precedence 6 and configure only ’fair-queue’ on the links
B、configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cycles
C、enable class-based traffic shaping on the VoIP traffic class
D、enable Layer 2 fragmentation and interleaving on the links
E、enable Frame Relay on the links and send voice and data on different Frame Relay PVCs