C7 is old school. E7/E20 is far far far far far far different. On Feb 2, 2013 2:55 PM, "Scott Helms" <khe...@zcorum.com> wrote:
> Jay, > > I'm spotty on mailing lists since most of my time is spent building these > kinds of networks. > > 1) Talk to more vendors than just Calix, especially if they're quoting > their Ethernet density on the C7. Also, keep in mind that port density may > or may not be relevant to your situation since space for muni shelves isn't > usually a problem. Port density is much more important if you're deploying > in existing telco enclosures but muni networks tend (not universally of > course) to reuse existing city infrastructure building to house the nodes > of their network. Please note that I am not reccomending against Calix, > they're a good solution in many cases, but AE is not a strong point on the > C7. The E7 and the B series, which is the old Occam product, is much > better than the C7. For that matter I wouldn't consider doing a new build > on the C7 since that platform's EoL can't be too far in the future. > > 2) I have no idea who told you this, but this is completely and utterly > incorrect in nationwide terms. If you have a specific layer 3 provder in > mind that tells you they want a GPON hand off then that's fine, but ISPs in > general don't know what GPON is and have no gear to terminate that kind of > connection. > > > On Sat, Feb 2, 2013 at 3:22 PM, Jay Ashworth <j...@baylink.com> wrote: > > > ----- Original Message ----- > > > From: "Scott Helms" <khe...@zcorum.com> > > > > > Why on earth would you do this with PON instead of active Ethernet? > > > What GPON vendor have you found where their technical staff will tell > you > > > this is a good architecture for their PON offering? > > > > Asked and answered, Scott; have you been ignoring the threads all week? > > > > I'm pretty sure I even answered it in the posting, but just in case: > > > > 1) Line cards for the OLT frames appear to be 2 orders of magnitude > denser > > for GPON termination than AE (480 ports per 10U vs 10k ports per 10U in > > Calix, unless I've badly misunderstood my sources), and > > > > 2) GPON is what potential L3 providers large enough to want an optical > > handoff are generally used to. > > > > If someone wants AE, they can certainly have it. > > > > (C'mon; miss the *next* turn, too :-) > > > > Cheers, > > -- jra > > -- > > Jay R. Ashworth Baylink > > j...@baylink.com > > Designer The Things I Think RFC > > 2100 > > Ashworth & Associates http://baylink.pitas.com 2000 Land > > Rover DII > > St Petersburg FL USA #natog +1 727 647 > > 1274 > > > > > > > -- > Scott Helms > Vice President of Technology > ZCorum > (678) 507-5000 > -------------------------------- > http://twitter.com/kscotthelms > -------------------------------- >
