This is what I have seen with providers that are using Cisco 7600 era routers for distribution layer. Fairly standard sort of setup with two identical core routers which the customers' handoffs never touch(something expensive like a mx960, t1600, older crs-1, asr9010 And 2nd gen linecards), and a twin pair of distribution routers like 7606 with rsp720-3cxl.
The 24 and 48-port sfp gigE line cards for the 7606 are quite low cost on a $/port basis now. So if you're a smaller wisp or local provider buying IP transit from the larger provider, it makes sense for them to bond two 1Gbps ports for your handoff. Generally if you start exceeding 1.5-1.6 Gbps peak traffic during busy evening hours then your provider will consider a request for a 10Gbps port. On Feb 12, 2016 12:32 PM, "Paul Stewart" <[email protected]> wrote: > I don’t disagree .. but it’s also about port costs as well …. 1G ports are > still higher density on cards and more economical to support. So some > providers mandate that you must have X number of GigE ports taken before > they will utilize 10G ports. > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Gino Villarini > *Sent:* Friday, February 12, 2016 10:47 AM > *To:* Animal Farm <[email protected]> > *Subject:* Re: [AFMUG] Fiber upstream above 1g bonded? > > > > bonding 1g only make sense if your MEtro Ethernet network has low 10g port > density... > > > > On Fri, Feb 12, 2016 at 11:18 AM, Chuck McCown <[email protected]> wrote: > > We go right to 10G. > > > > *From:* TJ Trout <[email protected]> > > *Sent:* Friday, February 12, 2016 12:47 AM > > *To:* [email protected] > > *Subject:* [AFMUG] Fiber upstream above 1g bonded? > > > > For Telco or cable providers when going above 1G do they normally bond 1g > ports or go right to 10g? Would be most interested in at&t mis or comcast > as those are my current providers > > >
