The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] QoS in Shared Media
You might want to look at the 802.1D standard for MAC bridges which provides user priority in MAC frames? Regards Mohammed Atiquzzaman Tel: (405) 325 8077 School of Computer Science Fax: (520) 962 8422, University of Oklahoma (405) 325 4044 200 Felgar St., Room EL-154 Email: atiq@ou.edu Norman, OK 73019-6151 atiq@ieee.org www.cs.ou.edu/~atiq > -----Original Message----- > From: Naidu, Venkata [mailto:Venkata.Naidu@Marconi.com] > Sent: Friday, May 04, 2001 9:59 AM > To: 'mpls@uu.net' > Cc: 'te-wg@ops.ietf.org' > Subject: QoS in Shared Media > > > Hi All > > I have a doubt regarding "QoS in Shared Media". I don't > know how much this is applicable to this discussion list :-) > > But anyway, I am hearing about 40/10(OC768) Gig Ethernet > evolution. If not at the core, these technologies may be > at the enterprise/access networks(?). > > Moreover, The QoS issue is especially interesting over > wireless access networks as they are likely to be bottlenecks > (compared to wireline links) and they are often shared > media (e.g., wire less LANs). Providing service > differentiation on shared media is difficult due to > the risk of collisions between packets of different priority. > > * So, first, Is MPLS useful/applicable to these technologies? > > * If so, how the present singling protocols (RSVP/CR-LDP) or > diffserv TE extended protocols will take care of this? > As far as I know, classical RSVP is designed for such goals > and ofcourse, present IP routing protocols also runs > on such shared media, P2P and NBMA environments. > > * In a simple environment Ethernet -> ATM/NBMA -> Ethernet > How resource reservation takes place and is there something > more the present signaling/routing protocols need to do > for QoS guaranties. > > I didn't find anything useful in TE-WG drafts! > Is that I am missing something? > > Thanks & Regards > --Venkata Naidu > |
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