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Troubleshooting IP Routing Protocols by Abe Martey, Johnson Liu, Zaheer Aziz, Faraz Shamim

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Chapter 13. Troubleshooting PIM

This chapter discusses methods to troubleshoot PIM multicast. This chapter is divided into three parts:

IGMP joins issues

PIM dense mode issues

PIM sparse mode issues

Each part includes troubleshooting flowcharts and case studies to analyze and troubleshoot common PIM multicast problems. Chapter 12, “Understanding Protocol Independent Multicast (PIM),” discusses the general operation of PIM, if you need a refresher. For more detailed description on multicast and PIM protocol, refer to Developing IP Multicast Networks, Volume 1, by Beau Williamson.

Troubleshooting IGMP Joins

As discussed in Chapter 12, “Understanding Protocol Independent Multicast (PIM),” IGMP joins are a line of communication between the ...

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