----- Original Message ----- > From: "Jean-Francois Mezei" <jfmezei_na...@vaxination.ca>
> > Subscribers don't care if the hand off is at layer 1 or layer 2 so > > this is moot as well. > > This is where one has to be carefull. The wholesale scenario in Canada > leaves indepdendant ISPs having to explain to their customers that they > can't fix certain problems and that they must call the telco/cableco to > get it fixed. (in the case of a certain cable company, they can't even > call them, it has to be done by email with response of at least 48 > hours). Yes, and Scott is *horribly* pessimistic (in my opinion) about how difficult it will be to have ISP clients who a) understand this and b) don't tolerate it. I will have more to say on this below. > 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. 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. > > 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 ? What happens is that they tell us, the hometown fiber network operator that they're switching to ISP-2, who has already put in their own Take order to us, and we splash cut the pair, with no responsibility to ISP-1 whose contract warns them that *our residents* take priority, and if they screw up, they'll lose by it. Customer happy, and foot-dragging ISP -- who should -- takes the brunt. They do it too much, they pay. > 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 > changes required and it can be almost tranparent to the end user who > just has to make a new DHCP request and be provisioned by ISP-2. Yes, and that's why my *primary* goal will be to provide L2 service with city-owned ONTs. Making sure the plant is L1 *compliant* is my secondary goal, so I don't lock out PtP or L1 clients. 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