Chapter Review Questions

You can find answers to the following questions in Appendix A, "Answers to the Chapter Review Questions."

1. What does MPLS LSP ping provide that IP ping does not?

2. Name three MPLS-specific MIBs.

3. What does a ping mpls or traceroute mpls with reply mode router-alert do?

4. What is the name for the Cisco IOS subsystem that is responsible for processing MPLS echo request and echo reply packets?

5. What MPLS-related information can you see with MPLS-aware Netflow?

6. What prevents an MPLS echo request packet from being forwarded as an IP packet after it becomes unlabeled?

8. If Type 1 VCCV is used, how is the packet identified as being an AToM VCCV packet?

9. Why would you want to change the default destination IP address of 127.0.0.1 in the IP header of LSP ping packets if the packets are label-switched anyway?

10. What is context-based access for SNMP?

What You Will Learn

This chapter will give you an insight into the near future of MPLS. The future is always difficult to predict, but some enhancements will most certainly be made to MPLS. In the next few pages, you will read about a few enhancements to MPLS that are likely candidates for deployment in networks. There are other candidate enhancements, as well, that I do not mention, and there are the enhancements and new developments that nobody has thought of yet.

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