| reply to DSL_Ricer
Re: The Bell Disclosure! said by DSL_Ricer:Now can someone please explain to me exactly from where to where in the network diagram their DSLAM category is, and why they can't selectively target traffic on congested links? I'm not an expert in Bell's network, so if there are any mistakes in this explanation they are mine:
In simplistic terms, a TS customer's data will traverse the following path:
a) the copper from your home to the CO (DSLAM) is speed restricted by the card in the DSLAM with provisions your service, and by the wire distance from your house to the CO. Currently Bell's DSLAM cards max out at about 7Mpbs as short distances from the CO. Typical data rates are 3-6Mbps downstream, depending on the service you purchased and the distance from the CO to your home.
2) From the DSLAM the signal goes to a concentrator (I'm using this terminology because the type of equipment used may vary) which then puts your traffic and that of other people onto a GigE type circuit (typically).
3) From there the data leaves the CO and heads to a NAP (like 151 Front St. W. in Toronto).
4) At the NAP, the data is passed over from Bell to TS's own co-located network and then onto the connections TS purchases from other providers.
I'm not 100% certain where Bell's Ellacoya boxes are physically located, but logically they could be located at either a step 2a or step 3a, and possibly even both locations to deal with upstream/downstream traffic before they hit the GigE pipes in either direction. |
