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MPLS Fundamentals by Luc De Ghein - CCIE No. 1897

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Chapter 9

1. Name three reasons to have a new IP protocol.
A1: Answer: Following are some of the reasons for having a new IP protocol:

- Bigger addresses

- More streamlined and more efficient IP header

- Fixed IP header size

- Flow Label field

2. How many bits does an IPv6 address have?
A2: Answer: An IPv6 address has 128 bits.
3. What happened to IP protocol version 5?
A3: Answer: IPv5 was experimental and was dropped.
4. Name the five ways a service provider can carry IPv6 packets across the backbone network.
A4: Answer: A service provider can carry IPv6 packets across the backbone network in these ways.

- Run a dual stack (IPv4 and IPv6) on the backbone routers.

- Run AToM and transport IPv6 packets on pseudowires.

- Use the MPLS VPN for IPv4 ...

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