the multicast traffic is mapped to a subset of L2 MAC multicast address.
the mapping rule is the following:
the multicast MAC address 48 bit is:
0x 01005e + 1binary0 + last 23 bits of multicast IP address
last 23 bits = last significant 23 bits of the 4 octet multicast IP address
32 addresses are mapped to a single multicast MAC address
the 1 the last significant bit in the first byte is called I/G bit it says it is multicast when set to 1
You need to send traffic to the mapped MAC address for your group.
Instead unicast traffic has to be sent to the router /L3 switch MAC address
Note: To be able to send multicast traffic successfully from IXIA port1 to IXIA port2 you need to configure IXIA port2 to send IGMP join and later IGMP reports for the multicast group you want to send traffic to.
Thanks for the response. I am still a little confused. When setting up the IXIA how do I know what the mapped MAC address for the group is? Also, I guess I have to set up a group on the swicth then or do you mean by group a vlan group.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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