Obtain membership of any ATM Switch
authorised under the Rules for Payment Systems Operators and Payment Service Providers under a mutually agreed term.
Moreover IP routers were significantly slower than ATM switches
and wherever minimization of IP/ATM router hops was possible, it was done by placing all their routers in one LIS .
The new version has an integral ATM switch
allowing users to daisy-chain the units and conserve switch ports.
This latest release integrates wideband TDM cross-connect functionality including DS3 test access to an already versatile CityStream platform which also offers ATM service access multiplexer and ATM switch
(announced in March 2002) functionality combined with Next Generation SONET add/drop multiplexer capabilities.
Thirty percent of survey respondents have an ATM switch
. Of those who do not, 5% planned to by the end of 2001, and 7% by year-end 2002.
We evaluated several ATM switch
vendors but chose Marconi (then FORE Systems) because they were already on state contract and proved to us that a distributed ATM architecture would be cost effective.
The system incorporates a fiber-optic backbone, expanded-beam fiber-optic interconnects, an ATM switch
and a downstream copper distribution system.
An ATM switch
can handle data, graphics, voice and video at the same time, at line speeds from 45 million bits per second to 600 million bits per second.
Nortel was predictably elated at its success, the second major European provisioning award for its Passport 15000 ATM switch
this year, following a similarly significant contract awarded by France Telecom.
With the integration of Cisco IOS(R) software, the BPX 8600 switch is the first carrier-class ATM switch
to deliver IP services through Tag Switching.
On each incoming link of an ATM switch
, an arriving cell's VPI and VCI values uniquely determine the new virtual identifier to be placed in the cell header and the outgoing link over which to transmit the cell.
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