Complete these steps to determine if the source is actually sourcing the packets and inserting the correct packet fields:
1. Check the interface counters on the host. First, check the interface counters (if you are on a UNIX system, use the netstat command) on the source host to see if it is sending packets. If it is not, check for misconfiguration or bugs in the host stack and application.
2. Use the show ip igmp groups interface-name command to check the upstream router to see if it received a join membership report at the interface directly connected to source.
Here is the link for Basic Multicast Troubleshooting Tools.
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Introduction The purpose of this document is to demonstrate the Open
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