Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2005-03-08
2005-03-08
Pezzlo, John (Department: 2662)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S355000, C370S369000
Reexamination Certificate
active
06865179
ABSTRACT:
A hybrid telecommunications switch includes synchronous transfer mode (STM) and asynchronous transfer mode (ATM) switch fabrics, and a controller. The controller is configured to separate incoming ATM from STM traffic and to provide access, through a connection admission control (CAC) protocol to an STM fabric for ATM traffic. In one aspect of the invention, real-time traffic, such as voice traffic, may be separated from non-real-time traffic, such as Internet email traffic. Once separated, the real time traffic may be switched through a circuit switch fabric and the non-real-time traffic may be switched through a packet switch fabric. ATM traffic, such as CBR and rt-VBR may aggregated “on-the-fly”, that is, without pre-provisioning, and switched through the hybrid switch's circuit switch fabric. ATM traffic falling into other categories is routed through a packet switch fabric.
REFERENCES:
patent: 6151315 (2000-11-01), Ash et al.
patent: 6314103 (2001-11-01), Medhat et al.
patent: 6381238 (2002-04-01), Hluchyj
patent: 6522663 (2003-02-01), Bharucha et al.
patent: 6646985 (2003-11-01), Park et al.
Lucent Technologies - Inc.
Pezzlo John
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