Centrally synchronized distributed switch
First Claim
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1. A centrally synchronized distributed switch, comprising:
- a) a control processor;
b) at least one space switch coupled to said control processor; and
c) at least one time switch coupled to said space switch by a serial link;
wherein each of said space switch and said time switch comprises an on-line configuration page and an off-line configuration page, and wherein configuration page selection information generated by said control processor is sent to said time switch in-band over said serial link.
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Abstract
The present invention comprises a centrally synchronized distributed time-space-time switch fabric wherein connection memory page (CMP) selection information is communicated to remote devices without having to add any extra hardware to the system. The central processor only needs to communicate to the space switch device, and by writing to certain registers in the space switch the processor can control the CMP selection in each of the time switch devices. By providing the page selection information over the same signals that transfer data, these page selection signals do not have to be routed externally or controlled by the distributed software.
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Citations
18 Claims
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1. A centrally synchronized distributed switch, comprising:
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a) a control processor;
b) at least one space switch coupled to said control processor; and
c) at least one time switch coupled to said space switch by a serial link;
wherein each of said space switch and said time switch comprises an on-line configuration page and an off-line configuration page, and wherein configuration page selection information generated by said control processor is sent to said time switch in-band over said serial link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16, 17, 18)
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10. A centrally synchronized distributed switch, comprising:
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a) a control processor;
b) at least one space switch coupled to said control processor;
c) a plurality of input time switches each coupled to said space switch by a serial link; and
d) a plurality of output time switches each coupled to said space switch device by a serial link;
wherein each of said space switch, said input time switches and said output time switches comprises an on-line configuration page and an off-line configuration page, and wherein configuration page selection information is sent to said input and output time switches in-band over said serial links.
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- 11. A method of synchronizing a distributed switch having a control processor, at least one space switch coupled to said control processor, and a plurality of time switches each coupled to said space switch by a serial link, said method comprising sending configuration page selection information to said time switches in-band over said serial links.
Specification