Laboratory work 3
This week I would like you to investigate the properties of WAN carriers.
Use the Internet to do this. You may confer with each other to achieve the results.

1    Use this Nortel page as your starting point. You may find other details at other websites.

 

Read the text and answer the folowing:

 

2    Make a table that displays the transport cost per bit offered by Nortel WAN delivery systems and two other carriers.

3    What is OC-192/TN-64X?

4    What is the highest WAN data rate offered by Nortel?
 

5    What is DWDM?

 

6    What optical carrier technology is DWDM coupled with to give a per-fibre transfer rate of 160 Gbps?

 

7    What is a VPN?

 

8    How could this benefit a traditional LAN with offices in many cities?

 

9    What is MultiLayer Switching (MLS)?

 
10   What is 1000BaseT and what MAC does it use?
 
11   Why does Gigabit Ethernet not really require CSMA/CD?
 

12   Why is it still implemented? 

Bring a hard copy of the doc to your next lecture.