Cell Relay Archive

[Paul Tichy <ptichy@ub.com>]

> In article <01bcae55$a5952740$46f387ce@scarterpc.primanet.com>,
>   "SCarter" <scarter@primanet.com> wrote:
> 
> So..... is there an enterprise ATM switch from any vendor out there
> that can interface to the Internet through a set of T1s run into
> the premise and yet provide 10mbps  to 100 mbps TCP/IP services
> with varying QOS to multiple businesses over the aggregate of
> trunks into the builiding?

Newbridge can provide this type of function using its product line.  
Although it'd differ from what I read from your post, that it all be 
done out of a single device. We'd have to use a few.

The Newbridge solution would involve using a 36170 ATM switch, which 
supports T-1/T-3 and OC-3/OC-12 interfaces, and a VIVID starter kit 
which would provide local area routed TCP/IP over Ethernet, Fast 
Ethernet and ATM using MPOA. The interface between the VIVID and 36170 
would be ATM, and the VIVID starter kit involves deploying at least 
three devices (ATM switch, Route Server and Ridge (MPOA edge device)).

As for TCP/IP QOS, the Ethernet and Fast Ethernet interfaces would be 
layer-3 switched, but without explicit QOS, since nothing shipping 
right now maps QOS to connectionless Ethernet. Shortly, as RSVP gets 
released, RSVP requests will be mapped into VIVID's ATM QOS circuits 
and queues.

> Perhaps a solution is possible that involves locating an ATM switch
> at the Internet provider's POP in addition to the customer premise
> - running ATM cells over the T1 lines rather than frame relay/ PPP?

The MainStreet 36170 supports both service interworking and network 
interworking; you could do it either way.

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Paul Tichy                             (713) 968-9184
Senior Systems Engineer, Newbridge Networks - Houston
ptichy@us.newbridge.com
#include <std-disclaimer>
(Opinions expressed are purely my own, yada yada)
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