... BoxDiff-Serv, Int-Serv, and RSVPDiff-Serv, Int-Serv, and RSVPCisco IOS® software supports two Voice QoS Implementation options: Differentiated Services (Diff-Serv) or Integrated Services (Int-Serv).The ... priority queuing to Class-Based Weighted Fair Queuing (CBWFQ)• Delay-sensitive traffic can be de-queued and sent first• Was called PQ-CBWFQ (potentially confusing compared to PQ-WFQ), now called ... in overbooking of the LAN links and may eventually lead to congestion, especially if the Layer 2 network is a shared sub-network or a speed-mismatched sub-network. (This is a sub-network in which...