# Calculate the total bandwidth required for the following customer profile

NETW 320 Course Project QoS Design and Implementation

Objectives
As a network engineer working for a Service Provider, design and implement QoS on a converged network. For this project it is assumed that the converged network offers triple play services and has the following traffic: VOIP, High Definition TV (HDTV), Video on Demand (VOD) and Internet.

Note 1: The project is based on the experience acquired by the students in the previous labs, hence the main sources to complete the project are the labs of previous weeks, so it is important that the students review the lab instructions of the labs that have already been completed.

Note 2: The students will have access to the same lab equipment of Skillsoft as the previous weeks. The students will need to access the iLab to complete the project.

Project Requirements
Part A: Design

In this part the student should provide the QoS design.

A1. It is assumed that the traffic sources for HDTV, VOD, VOIP and Internet are connected to switch NYCORE1 to four different ports. The following are the requirements: (10 points)

Assign a switch port to each type of traffic.
Assign a COS to each type of traffic. The COS marking has 8 classes, from 0 to 7, assuming 0 is the lowest priority and 7 is the highest. Decide which class each traffic should have, based on the importance of the traffic.

Traffic Type Switch Port Number COS
Note that the answers for COS assignments can be slightly different from student to student, as we have 8 classes but only 4 types of traffic to classify.

A2. Explain in a short answer how or why you picked the highest priority traffic and the lowest priority traffic? (5 points)

A3. Calculate the total bandwidth required for the following customer profile. (5 points)

It is assumed that the customer subscribed to a package that allows him or her to receive to his or her residence simultaneously 2 HDTV channels, 2 VOD streams, VOIP, and Internet traffic. The bandwidth requirements for each type of traffic is as follows:
– One HD channel: 5 Mbps

One VOD: 5 Mbps
VOIP: 2 Mbps
Internet: 18 Mbps

Calculate and provide the total bandwidth required for the customer based on his subscribed package above:
Total bandwidth = _______________

A4. Assuming the customer is connected to one FastEthernet port of switch NYCORE2, assign a port to the customer; it can be any free port from the switch: (5 points)

Customer port number is _____________________

A5. The switch has four queues on each port: 1, 2, 3 and 4. Assign a queue to each type of traffic based on their COS. Assign the percentage of the total bandwidth that should be reserved for each queue, based on the bandwidth required for each type of traffic, use the subscribe package description in A3. Provide your answer in the form of the following table: (15 points)

Traffic Type COS Queue Number % of total bandwidth

Note that the queue assignment can be different from student to student, and for the case of the project, we assume it is not important which queue is assigned to each traffic type, as long as it has the right bandwidth percentage for the corresponding COS.

Part B: Implementation

In this part, the student will provide the configuration.

Note 3: Make sure that the QoS is enabled on the switch you are configuring QoS on.

Note 4: Configurations on switch NYCOR1 and switch NYCORE2 are independent, meaning they can be done in different days for each switch.

B1. It is assumed that traffic sources are connected to NYCORE1 switch. Access iLab NYCORE1 and enable QoS on NYCORE1. (5 points)

Provide the configuration steps.

Provide the verification using show command.

B2. Configure traffic classification based on your design from A1, configure the assigned COS on each port for each type of traffic. (10 points)

Provide the switch configuration steps.

Provide the verification of your configuration using show command.

B3. It is assumed that the customer is connected to NYCORE2, to the port you assigned in A4. Access iLab NYCORE2 switch and enable QoS. (5 points)

Provide the configuration steps.

Provide the verification using show command.

B4. Based on the total bandwidth calculated on A3, configure the bandwidth limit on the switch port which the customer is connected to and you assigned in A4. Note that the total bandwidth is the bandwidth limit for the customer. (5 points)

– Provide the configuration steps.

B5. Configure the queues, by assigning traffic types based on its COS to its corresponding queue. Use the queue assignment from A5. (10 points)

Provide the configuration steps.

Provide the verification using the show command.

B6. Reserve the bandwidth for each type of traffic, use the Shared Round Robing method and your table from A5. (5 points)

Provide the configuration steps.