November 2006
Beginner
672 pages
15h 30m
English
Content preview from MPLS Fundamentals
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Chapter 12
| 1. | How many bits in the IP header can be used for QoS? |
| A1: | Answer: Three bits in the IP header can be used for QoS if the precedence bits are used, and six bits can be used if the DSCP bits are used. |
| 2. | How many AF classes exist? |
| A2: | Answer: Four AF classes exist. |
| 3. | Name the three MPLS DiffServ models. |
| A3: | Answer: Uniform model, Pipe model, and Short Pipe model are the three MPLS DiffServ models. |
| 4. | What is the difference between the Pipe and Short Pipe models? |
| A4: | Answer: The only difference between the two models is the forwarding treatment of the packets on the egress LSR. The egress LSR forwards packets based on the LSP DiffServ information in the Pipe model. The egress LSR forwards packets based on the Tunneled DiffServ ... |
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