Rick Gallahers MPLS Training Guide: Building Multi Protocol Label Switching Networks

If you are the “hands-on” type and you want to see MPLS packets on a protocol analyzer, you will need two items of software: a copy of Ethereal (www.ethereal.com) and the sample (www.ethereal.com/sample) called MPLS-TE. (If you do not have a link to the Internet, you can find these captures in the appendix.)

If this is the only protocol analyzer present on your computer, you can open the file called MPLS_basic by clicking on it. If you have another protocol analyzer, you will have to open the Ethereal program and open the file from the menu:

1. From your desktop, go to Start | Programs; find and double-click Ethereal.

2. Once the Ethereal program opens, open the file called MPLS_TE.

3. Wait for the file to open. It will take a few minutes.

4. Find frames 3 and 4 (RSVP).

5. Follow the steps in the lab.

1. 

Look at Frame 3 in Figure 3.25.

Figure 3.25: RSVP Overview

2. 

Find and highlight the strict routing path in Figure 3.26.

Figure 3.26: RSVP Detail

3. 

For what type of traffic is the label requested?

4. 

What is the C-Type on the request?

1. 

2. 

210.0.0.2

204.0.0.1

207.0.0.1

202.0.0.1

201.0.0.1

200.0.0.1

16.2.2.2

3. 

19 Label Request Object

4. 

1