Which of the following statements regarding the IntServ model is false?

Which of the following statements regarding the IntServ model is false?

• A. RSVP is used to transmit signaling of QoS requests.
• B. It can provide guaranteed bandwidth and delay to meet application requirements.
• C. Load control service ensures packet processing with low delay during network congestion.
• D. The network does not maintain the status of each flow in the IntServ model.

Answer: (D)

The statement that the network does not maintain the status of each flow in the IntServ model is indeed incorrect. In the Integrated Services (IntServ) architecture, each flow of traffic is identified and managed separately. This involves maintaining information about various parameters for each flow, such as its Quality of Service (QoS) requirements and current status. The Resource Reservation Protocol (RSVP) is utilized to facilitate this flow management by allowing applications to request specific QoS parameters from the network, thereby ensuring that the network can accommodate these requests based on available resources. As a result, when applications require guaranteed bandwidth and low delay, the network can manage individual flow states effectively to meet these demands, making flow management critical to the IntServ design. This characteristic differentiates IntServ from other models, such as Differentiated Services (DiffServ), where the focus is more on classifying and treating packets rather than managing individual flows meticulously.

The statement that the network does not maintain the status of each flow in the IntServ model is indeed incorrect. In the Integrated Services (IntServ) architecture, each flow of traffic is identified and managed separately. This involves maintaining information about various parameters for each flow, such as its Quality of Service (QoS) requirements and current status. The Resource Reservation Protocol (RSVP) is utilized to facilitate this flow management by allowing applications to request specific QoS parameters from the network, thereby ensuring that the network can accommodate these requests based on available resources.

As a result, when applications require guaranteed bandwidth and low delay, the network can manage individual flow states effectively to meet these demands, making flow management critical to the IntServ design. This characteristic differentiates IntServ from other models, such as Differentiated Services (DiffServ), where the focus is more on classifying and treating packets rather than managing individual flows meticulously.