nanog mailing list archives
Re: MBone access
From: Havard Eidnes <he () runit no>
Date: Fri, 30 Mar 2001 19:04:09 +0200
I'm curious what barriers are keeping multicast from being deployed at the edges. Does your upstream not support multicast connectivity, or is it an education issue in getting connected?
Well, if we go out to the consumer edge, you'll find several providers deploy technologies that have bad scaling properties with multicast. If I've understood correctly, many DSL providers do the provider end of DSL as ATM, and with no "multicast smarts" at the point where the DSL circuits actually fan out (DSLAM?). This creates duplicate traffic on the "pure ATM stretch". If the DSL provider overbooks his ATM capacity (which is apparently fairly common) compared to the number of DSL circuits he terminates, well..., it's not helping. I'm sure there are other examples of more or less actively multicast-unfriendly network technologies in this market segment. Of course, having tunnels run willy-nilly over your unicast infra- structure isn't exactly ideal either. Regards, - HÃ¥vard
Current thread:
- Re: MBone access, (continued)
- Re: MBone access Marshall Eubanks (Mar 27)
- Re: MBone access Jared Mauch (Mar 27)
- Re: MBone access Tim Winders (Mar 27)
- Re: MBone access Brent Sweeny (Mar 27)
- Re: MBone access Tim Winders (Mar 27)
- Re: MBone access Brent Sweeny (Mar 27)
- Re: MBone access Vadim Antonov (Mar 27)
- Re: MBone access just me. (Mar 27)
- Re: MBone access Marshall Eubanks (Mar 27)
- Re: MBone access Steve Meuse (Mar 27)
- Re: MBone access Havard Eidnes (Mar 30)