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To: tom offenbach who wrote (16819)11/7/1999 1:50:00 PM
From: Brasco One  Read Replies (1) | Respond to of 29970
 
tom, again a lot of inaccurate statements.

t is not my intention to split hairs but saying that 'phone companies' use old and weak fujitsu and alcatel dslams
and that CLEC's use their own is not clear to me..... If this is the case couldn't it be a result of the fact that there
are different flavors of dslams, one designed for ADSL and the other for SDSL?


again, covad uses their own dslams. a dslam could provide both adsl and sdsl speeds.

Are you a Covad salesperson? The QoS that they're referring to is limited to the DSL connection, not the IP
connection. The fact of the matter is that Covad, NorthPoint, Rhythyms or anyone else for that matter can't
guarantee any commited port speed to the Internet(CIR refers specificall to frame relay) because they don't
control that piece of it. The only piece that they can guarantee is from the customer premise to the ISP router. I
emphasize this because you can get Covad to supply your DSL loop and various ISP's to supply your IP
connection and your performance will vary based on the quality of the ISP's upstream and peering connections,
not on the loop.


i'm in the dsl industry buy side. i know my dsl! covad doesn't use frame relays. they use ATMs where they could lose up to 30% of their signal. most ISPs that carry or sell covad's service guarantee 70% of SDSL speed.

Huh? All DSL CLEC's can provide burstable connections. It's simply a matter of dynamic bandwidth allocation. In
the scenario that Covad is supplying a DSL loop to a customer that needs a guarantee on bandwidth, the ISP is
going to charge that customer accordingly....ala the same price as that of their dedicated connections.


sdls lines are not burstable through north and covad. SDSL lines are constant speeds and are guaranteed.
you are refering to adsl lines. these lines are best afford.