To configure a static ARP entry: edit interfaces interface-name unit logical-unit-number family inet address address userswitch set arp ip-address (mac multicast-mac) mac-address The IP address that you specify must be part of the subnet defined.To associate a multicast MAC address with a unicast IP address.The benefit with enabling igmp-snooping is that it conserves bandwidth on those segments of the network where no receiver has expressed interest in receiving packets sent for a multicast group.The EX switch uses this information to make intelligent decisions and forward Multicast traffic to the intended destination interfaces only.
Router interfaces: ge-0015.0 dynamic Uptime: 00:34:46 timeout: 247. Group: 224.100.100.100 ge-0010.0 timeout: 175 Last reporter: 192.168.100.10 Receiver count: 2. The show igmp-snooping vlans detail command identifies the client interface, group address, and the VLAN that the group is part of. I see static ARP entries in the 3750 (which make sense to me), and in the N5K I see static MAC address-table entries. As a point in fact, doing so can break a MS NLB setup as the MS servercluster can no longer shift instances between links or servers. ![]() Normal switch operations would be to flood multicast traffic out of all ports, which isnt generally necessary and only adds unnecessary traffic to a number of devices. IGMP snooping gives a mapping to the switch of which ports should be sent traffic for the multicast destination. Searching in your engine of choice should find you any number of documents. Provide details and share your research But avoid Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Not the answer youre looking for Browse other questions tagged cisco mac-address arp cisco-nexus-5k or ask your own question.
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