Question:
Q1: Describe the role of the DSLAM card in DSL technologies.
Q2: For each of the following DSL line cards, calculate the maximum number of subscribers per MXK-319 chassis. You should show your working.
- Zhone MXK-VDSL2-BCM-17A-48-V
- Zhone MXK-VDSL2-BCM-17A-24
Q3: a) Provide a photo showing the following as deployed in Go’s telephony network:
- Telephone Distribution point
- Remote-DSLAM cabinet
List 4 locations of Go telephony exchanges. Pinpoint these locations on a map using Google maps.
Q4: Describe two different form factors of optical splitters. Provide an example market product of each type.
Q5: For each of the following GPON line cards, calculate the maximum number of subscribers per MXK-319 chassis. You should show your working.
- Zhone MXK-GPONX4-IO
- Zhone MXK-GPONX8-IO
Q6: Provide a photo showing the following as deployed in Go’s FTTH network:
- Fibre Distribution Point
Provide the exact location at which the photo has been taken
Q7: Describe two reasons why service providers might opt to connect a client through active Ethernet rather than GPON.
Q8: A service provider is using the Zhone MXK-AEX20-FE/GE-CSFP Active Ethernet line card.
Calculate the maximum number of subscribers per MXK-319 chassis for each of the following SFPs.
You should show your working.
- SFP-GE-BX-1310-SLC
- CSFP-GE-1490-1310-DL-BIDI-10KM
Q9: Zhone offers various types of SFPs that can be used with the MXK-AEX20-FE/GE-CSFP line card. Describe three different aspects in which these SFPs differ.
Q10: Describe the concept of label switching.
Q11: Provide the structure of an MPLS label.
Q12: LDP is one of the core protocols of MPLS. Explain its role.
Q13: Explain the use of Virtual Routing and Forwarding (VRF) in the implementation of Layer 3 MPLS VPNs.
You were hired by a service provider start-up company to deploy an MPLS network. The company already has 3 clients that would like to interconnect their 2 sites with an MPLS VPN.
You are free to use any IP addresses for the provider’s core network however the networks to be used at each site by your clients will be provided by your lecturer.
In this task, you are required to provide the following:
- Fully labelled topology diagram showing interfaces and IP addresses
- IP addressing table of all the interfaces
- A table showing the VRF names, Route Distinguishers, Route Targets and allocated interfaces for both provider edge routers
In this task, you are required implement the MPLS network designed in Task 5. The configuration for all the routers needs to be included in your assignment.
Marks:
- Basic router configuration [2 mark]
- mBGP between provider edge routers [2 marks]
- VRFs [2 marks]
- CE to PE Routing [2 marks]
- Route Redistribution [2 marks]
In this task you will be provided with a configured MPLS topology that is encountering some issues that need to be solved.
This task will be carried out in a class session as advised by your lecturer.
Answer:
