Re: Use of SAP in a PIM SSM Network

[Scott Bradner <sob@harvard.edu>]

Marshall sez:
> If there is a MAC layer collision, for any reason, they will want a fast
> means of resolving it. 

I guess I'm confused - the Ethernet (for example) drivers I've seen do not
assume that the multicast packet they just got is actually for them - they
check and discard the ones that are not

so I do not see what the problem is

Scott

(in fact many Ethernet adapters do not know how to check for a specifc
multicast address - they hash teh address into some number of bins (e.g. 64) 
and if a flag for that bin is on they accept the packet )