The IP over ATM Mailing List Archive by date[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Multicasting with ATM - a concern
> From atmpost@matmos.hpl.hp.com Wed Oct 18 10:52:12 1995 > To: Juha Heinanen <jh@lohi.dat.tele.fi>, ip-atm@matmos.hpl.hp.com > Subject: Re: Multicasting with ATM - a concern > Date: Wed, 18 Oct 1995 13:13:59 -0400 > From: Dan Grossman <dan@dma.isg.mot.com> Dan, > Switched VPCs are unlikely to be widely deployed. I assume you mean "unlikely to be widely deployed at the UNI". There are many places where VPCs at the NNI will be widely used for the reasons you mention later on, primarily for trunking/scaling. Trunking and scaling are not just public network problems. I agree absolutely that VPCs should not be used by applications directly but the topic in question includes routers and switches using VPCs, not just applications (the protocol does not distinguish between who uses it, but merely provides a mechanism. This could be viewed as either a bug or a feature). > ITU-T has a fairly strong position that switched VPCs are not a > service to be offered by public networks. This has to be an indication that > industry support for switched VPCs is weak. That's fine if public networks don't offer this service. That does not imply that industry support for VPCs in the private domain is weak. > Regardless of whether people share the concern of many of us for the proper > use of the VPI, serious consideration should be given to whether you really > want to write an Internet standard assuming the availablity of mechanism which > is not going to be widely available. That depends on whether you believe that Internet standards are only for the Internet (with an Uppercase I) or whether they are also for internetworking in general. I don't know who gets to answer that question! Andrew ******************************************************************************** Andrew Smith TEL: +1 408 764 1574 Technology Synergy Unit FAX: +1 408 988 5525 Bay Networks, Inc. E-m: asmith@baynetworks.com Santa Clara, CA ******************************************************************************** |
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