----- Original Message ----- > From: "Masataka Ohta" <mo...@necom830.hpcl.titech.ac.jp>
> Jean-Francois Mezei wrote: > > So splitting responsabilities can be an annoyance if it becomes very > > visible to the end users. > > No different from competing ISPs using DSL or PON. Sure it is: competing ISPs in a traditional situation would be using each their own PHY. > > Another aspect: customers espect to be able to switch seamlessly from > > one ISP to the next. But ISP-2 can't take over from ISP-1 until ISP-1 > > has relinquised control over the line to the end user. > > No different from competing ISPs using DSL or PON. Sure it is: there it's *much worse*. > > In a layer 1 > > scenario, it means ISP-1 has to physically go and deinstall their > > CPE > > and disconnect strand from their OLT, and then ISP-2 can do the > > reverse > > and reconnect evrything to provide services. > > No. Just say optical MDF. Doesn't preclude the need to swap different models of ONTs. > > What happens when ISP-1 isn't interested in a quick disconnect and > > ISP-2 > > has to wait days/weeks with end use without service ? > > You assume ISP-1 quickly stop servicing the end user, don't you? I assume everyone will behave, because they're all *the customers of me, the municipality*, and they have a vested interest in being good actors. > > In a layer2 service, it is a matter of reconfiguring the OLT to pass > > ethernet packets to a different VLAN to a different ISP. No physical > > What happens when OLT operator isn't interested in a quick > reconfiguration, ISP-1 quickly stop servicing the end user > and ISP-2 has to wait days/weeks with end user without service? Again, *the city* is the OLT operator, in a L2 scenario, and I will flip the customer over almost immediately. Yes, I know subs will try to game things occasionally; we'll likely be able to cope with that. 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