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| Configuring IP Multicast Protocols | |
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| This Field... | Displays... | |
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| RegStop | The number of Register Stop messages sent or received on the | |
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| interface. | |
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| Assert | The number of Assert messages sent or received on the interface. | |
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| Total Recv/Xmit | The total number of IGMP messages sent and received by the routing | |
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| switch. | |
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| Total Discard/chksum | The total number of IGMP messages discarded, including a separate | |
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| counter for those that failed the checksum comparison. | |
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USING THE WEB MANAGEMENT INTERFACE
You cannot display PIM statistics using the Web management interface.
Configuring Multicast Source Discovery Protocol (MSDP)
The Multicast Source Discovery Protocol (MSDP) is used by Protocol Independent Multicast (PIM) Sparse routers to exchange routing information for PIM Sparse multicast groups across PIM Sparse domains. Routers running MSDP can discover PIM Sparse sources that are in other PIM Sparse domains.
PIM Sparse routers use MSDP to register PIM Sparse multicast sources in a domain with the Rendezvous Point (RP) for that domain.
Figure 9.4 shows an example of some PIM Sparse domains. For simplicity, this example show only one Designated Router (DR), one group source, and one receiver for the group. Only one PIM Sparse router within each domain needs to run MSDP.
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