Joe, Thank you very much for articulating a more precise definition.
How about this: Infrastructure multicast are originated by network protocols for the purpose of establishing network topology and reachability, such as Address Resolution Protocol (ARP), Neighbor Discovery (ND), Dynamic Host Configuration Protocol (DHCP), multicast Domain Name Server (mDNS), etc.. Application-specific multicast traffic are originated and consumed by user applications. Linda From: Joe Touch [mailto:[email protected]] Sent: 2017年1月27日 18:20 To: Linda Dunbar <[email protected]>; Olufemi Komolafe <[email protected]>; Anoop Ghanwani <[email protected]>; Bocci, Matthew (Nokia - GB) <[email protected]> Cc: MBONED WG <[email protected]>; Truman Boyes <[email protected]>; <[email protected]> <[email protected]>; Williamson, Beau <[email protected]>; Dino Farinacci <[email protected]> Subject: Re: [nvo3] [MBONED] NVO3 Multicast Framework On 1/27/2017 4:03 PM, Linda Dunbar wrote: [Linda] Infrastructure multicast are originated by network nodes for the purpose of establishing network topology and reachability, such as Address Resolution Protocol (ARP), Neighbor Discovery (ND), Dynamic Host Configuration Protocol (DHCP), multicast Domain Name Server (mDNS), etc.. + Also, how would you classify protocols like OSPF, PIM, VRRP etc that are dependent on multicast? Even if you do not consider them relevant for this framework, perhaps you should briefly mention them? [Linda] I don’t think we can enumerate all network protocols (many of them use multicast). The purpose is to differentiate multicast originated by network nodes and the multicast originated by applications. DHCP and mDNS are applications ("L7"). Network nodes don't originate anything; their protocol layers do (link, network, transport, application). It might be useful to focus on the difference being "network infrastructure" vs "user applications" as the better way to describe the difference. I don't think "network nodes vs. applications" is clear or meaningful. Joe
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