Hey guys im working on a project about fabricpath and i have hardtime with understanding how fabricpath handles the multicast pakkets in following scenario.
Lets say end node send a multicast pakket to all nodes in vlan 10. this pakket will be send bij switch1 to FP1 and FP2 switches. those switches will send that pakket to the multicast root switch. And the root switch will get both pakkets and will send it to all FBswitches who have acces to vlan 10. this mean FP1 and FP2 will also get this pakket. And both will decap the pakket and will see that the pakket is from end node which is source to there edge. because of this FP1 and FP2 will send this pakket agian to the root switch. this mean those pakket will be in a loop. I know that TRILL is solving this problem with have a Appointed forwarder. And i have read that that Fabricpath uses designated forwarder. Nou my question is how is the DF selected?
hoop you guys can help me with understanding this.
Kind regards,
Sathees