nanog mailing list archives
RE: MPLS in metro access networks
From: "Quibell, Marc" <mquibell () icn state ia us>
Date: Thu, 15 Nov 2001 10:59:08 -0600
soooo...Label switching assigns labels to packet headers which results in less time and processing looking up routes, and instead relies upon a label index for forwarding decisions? Hence my statement "faster switching/routing and less processing":) Marc -----Original Message----- From: Michael Cohen [mailto:mcohen () thrupoint net] Sent: Thursday, November 15, 2001 10:56 AM To: Quibell, Marc Subject: RE: MPLS in metro access networks I hope so:) -----Original Message----- From: Quibell, Marc [mailto:mquibell () icn state ia us] Sent: Thursday, November 15, 2001 10:46 AM To: 'mcohen () thrupoint net'; nanog () merit edu Subject: RE: MPLS in metro access networks Are we talking about Multiprotocol Label Switching? Marc -----Original Message----- From: Michael Cohen [mailto:mcohen () thrupoint net] Sent: Thursday, November 15, 2001 10:45 AM To: nanog () merit edu Subject: RE: MPLS in metro access networks And I'm not sure what faster switching/routing has to do with MPLS:) I believe one of the ideas behind MPLS benefiting metro access networks is using MPLS to deliver layer 2 VPNs across an MPLS enabled core thus simulating leased lines for access clients...but I'm sure somebody will correct me if I'm wrong. There seems to be some hype for Martini draft VPNs and large enterprise customers in metro areas. Cheers, -Michael Cohen -----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of Quibell, Marc Sent: Thursday, November 15, 2001 10:20 AM To: 'srihari varada'; nanog () merit edu Subject: RE: MPLS in metro access networks I would think faster switching/routing and less processing would be wanted in any mid-to-large sized network...I'm not sure what load balancing and fault restoration has to do with MPLS.... Marc -----Original Message----- From: srihari varada [mailto:varada () txc com] Sent: Thursday, November 15, 2001 10:12 AM To: nanog () merit edu Subject: MPLS in metro access networks Hello: I have heard some stressing the role of MPLS in metro access networks. It is difficult for me to visualize the need for it in them while it is not so difficult to understand the utility (load balancing and fault restoration etc.) of it in the metro backbone networks. To characterize metro access networks in the context, the following is provided: -- aggregates traffic from residential (arriving via broadband access links such as xDSL, Cable) and business consumers (arriving via broadband access links such as xDSL and high speed links such as Ethernet or SONET) -- funnels aggregated traffic to metro backbone networks for destination hosts in the local metro region or remote regions across the internet regional and backbone networks. Majority of such access networks are SONET/ATM based (I didn't come across any case of Gig Ethernet. However, I do not preculde it). Thus, there are two questions: -- Are there known RBOCs/ILECs and CLECs entrenching MPLS in the said network scope? (I do not see many major ILECs in the un-official MPLS service providers list being circulated but it may mean little) -- If so, what motivates them to do so? Any analysis of the driving forces is appreciated. Regards, Srihari Varada
Current thread:
- MPLS in metro access networks srihari varada (Nov 15)
- <Possible follow-ups>
- RE: MPLS in metro access networks Quibell, Marc (Nov 15)
- RE: MPLS in metro access networks Michael Cohen (Nov 15)
- RE: MPLS in metro access networks Daniel Golding (Nov 16)
- RE: MPLS in metro access networks Quibell, Marc (Nov 15)
- RE: MPLS in metro access networks Quibell, Marc (Nov 15)
- RE: MPLS in metro access networks Michael Cohen (Nov 15)
- RE: MPLS in metro access networks Quibell, Marc (Nov 15)
- RE: MPLS in metro access networks Michael Cohen (Nov 15)
- RE: MPLS in metro access networks Gary Blankenship (Nov 16)
- RE: MPLS in metro access networks Gary Blankenship (Nov 18)
- RE: MPLS in metro access networks Michael Cohen (Nov 15)
- RE: MPLS in metro access networks Daniel Golding (Nov 16)
- Re: MPLS in metro access networks Dave Siegel (Nov 28)
- Re: MPLS in metro access networks Leo Bicknell (Nov 28)
- Re: MPLS in metro access networks Dave Siegel (Nov 30)
- RE: MPLS in metro access networks Daniel Golding (Nov 29)