Arrangements for switching multiple packet types combined in a single packet stream
First Claim
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1. A packet switching arrangement comprising:
- a broadband packet switch means, connected to a plurality of broadband customer lines and to a narrowband switch means, for selectively connecting broadband packets among said broadband customer lines and said narrowband switch means;
means in said broadband switch means responsive to a broadband service request packet from a first broadband customer line requesting a packet communication between said first broadband customer line and a second broadband customer line for connecting said service request packet to said narrowband switch means;
said service request packet comprises a predetermined signaling virtual channel identifier;
said broadband packet switch means comprises means responsive to said signaling virtual channel identifier for connecting said service request packet to said narrowband switch means;
said narrowband switch means comprises means responsive to said service request packet for connecting said service request packet to a control means; and
said control means is responsive to said service request packet for controlling said broadband packet switch means to selectively connect packets comprising said requested packet communication between said first broadband customer line and said second broadband customer line.
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Abstract
An arrangement for switching broadband ISDN (B-ISDN) packets is disclosed. The arrangement comprises a broadband packet switch connected to B-ISDN customers and to a narrowband switch via an interface unit. B-ISDN control packets are connected by the broadband packet switch to the narrowband switch which transmits them to a control unit. The control unit responds to control messages by controlling the broadband packet switch to selectively interconnect B-ISDN customers and by controlling the broadband packet switch, the interface means and the narrowband switch to selectively interconnect B-ISDN and narrowband customers.
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Citations
23 Claims
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1. A packet switching arrangement comprising:
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a broadband packet switch means, connected to a plurality of broadband customer lines and to a narrowband switch means, for selectively connecting broadband packets among said broadband customer lines and said narrowband switch means; means in said broadband switch means responsive to a broadband service request packet from a first broadband customer line requesting a packet communication between said first broadband customer line and a second broadband customer line for connecting said service request packet to said narrowband switch means; said service request packet comprises a predetermined signaling virtual channel identifier; said broadband packet switch means comprises means responsive to said signaling virtual channel identifier for connecting said service request packet to said narrowband switch means; said narrowband switch means comprises means responsive to said service request packet for connecting said service request packet to a control means; and said control means is responsive to said service request packet for controlling said broadband packet switch means to selectively connect packets comprising said requested packet communication between said first broadband customer line and said second broadband customer line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A packet switching arrangement comprising;
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a broadband packet switch means, connected to a plurality of broadband customers and to a narrowband switch means connected to a plurality of narrowband customers, for selectively connecting broadband packets among said broadband customers and said narrowband switch means; said call set up packet comprises a predetermined signaling virtual channel identifier; said broadband packet switch means comprises means responsive to said signaling virtual channel identifier for connecting said call set up packet to said narrowband switch means; said narrowband switch means comprises means responsive to said call set up packet for connecting said call set up packet to a control means; and said control means is responsive to said call set up packet for controlling said broadband packet switch means and said narrowband switch means to selectively connect packets comprising said requested packet communication between said one broadband customer and said one narrowband customer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A packet switching arrangement comprising;
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a broadband packet switch means, connected to a plurality of broadband customers and to a narrowband switch means connected to a plurality of narrowband customers, for selectively connecting broadband packets among said broadband customers and said narrowband switch means, each of said broadband packets comprising a virtual channel identifier; means in said narrowband switch means for connecting a call set up message received from one of said narrowband customers, requesting a communication between said one narrowband customer and an identified one of said broadband customers, to a control means; said control means is responsive to said call set up message for controlling said broadband packet switch means and said narrowband switch means to selectively connect packets comprising said requested communication between said one broadband customer and said one narrowband customer; said control means comprises means responsive to said call set up message for selecting a first virtual channel identifier at said one broadband customer for broadband packets comprising said requested communication and for selecting a second virtual channel identifier at said narrowband switch means for broadband packets comprising said requested communication; means for transmitting to said one broadband customer and said narrowband switch means the identities of said first and said second virtual channel identifiers; and means for controlling said broadband switch means to connect broadband packets including said first virtual channel identifier received from said one broadband customer to said narrowband switch means and to connect broadband packets including said second virtual channel identifier received from said narrowband switch means to said one broadband customer. - View Dependent Claims (19, 20)
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21. An arrangement for switching B-ISDN packets each comprising a virtual channel identifier, said arrangement comprising:
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a B-ISDN packet switch means, connected to a plurality of B-ISDN customers and to a narrowband switch means, for selectively connecting B-ISDN packets among said B-ISDN customers and said narrowband switch means; means in said B-ISDN switch means responsive to a B-ISDN call set up packet requesting a B-ISDN packet communication between first and second ones of said B-ISDN customers for connecting said B-ISDN call set up packet to said narrowband switch means; said narrowband switch means comprises means responsive to said B-ISDN call set up packet for generating a narrowband representation of said B-ISDN call set up packet and means for connecting said narrowband representation of said call set up packet to a control means; said control means comprises means responsive to said narrowband representation of said call set up packet for selecting a first virtual channel identifier at said first customer for B-ISDN packets comprising said requested communication and for selecting a second virtual channel identifier at said second customer for B-ISDN packets comprising said requested communication; means for transmitting to said first and said second customers the identities of said first and said second virtual channel identifiers; and means for controlling said B-ISDN packet switch means to connect B-ISDN packets including said first virtual channel identifier received from said first customer to said second customer and to connect B-ISDN packets including said second virtual channel identifier received from said second customer to said first customer.
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22. An arrangement for switching B-ISDN packets each comprising a virtual channel identifier, said arrangement comprising:
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a B-ISDN packet switch means, connected to a plurality of B-ISDN customers and to a narrowband switch means connected to a plurality of narrowband customers, for selectively connecting B-ISDN packets among said broadband customers and said narrowband switch means; means in said B-ISDN switch means responsive to a B-ISDN call set up packet requesting a packet communication between one of said B-ISDN customers and one of said narrowband customers for connecting said B-ISDN call set up packet to said narrowband switch means; said narrowband switch means comprises means responsive to said B-ISDN call set up packet for generating a narrowband representation thereof and means for connecting said narrowband representation of said call set up packet to a control means; said control means comprises means responsive to said narrowband representation of said call set up packet for selecting a first virtual channel identifier at said one B-ISDN customer for B-ISDN packets comprising said requested communication and for selecting a second virtual channel identifier at said narrowband switch means for B-ISDN packets comprising said requested communication; means for transmitting to said one B-ISDN customer and said narrowband switch means the identities of said first and said second virtual channel identifiers; and means for controlling said broadband packet switch means to connect B-ISDN packets including said first virtual channel identifier received from said one B-ISDN customer to said narrowband switch means and to connect B-ISDN packets including said second virtual channel identifier received from said narrowband switch means to said one B-ISDN customer.
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23. An arrangement for switching B-ISDN packets each comprising a virtual channel identifier, said arrangement comprising:
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a B-ISDN packet switch means, connected to a plurality of B-ISDN customers and to a narrowband switch means connected to a plurality of narrowband customers, for selectively connecting B-ISDN packets among said B-ISDN customers and said narrowband switch means; means in said narrowband switch means for connecting a call set up message received from one of said narrowband customers, requesting a communication between said one narrowband customer and an identified one of said B-ISDN customers to a control means; said control means comprises means responsive to said call set up message for selecting a first virtual channel identifier at said one B-ISDN customer for B-ISDN packets comprising said requested communication and for selecting a second virtual channel identifier at said narrowband switch means for B-ISDN packets comprising said requested communication; means for transmitting to said one B-ISDN customer and said narrowband switch means the identities of said first and said second virtual channel identifiers; and means for controlling said B-ISDN packet switch means to connect B-ISDN packets including said first virtual channel identifier received from said one B-ISDN customer to said narrowband switch means and to connect B-ISDN packets including said second virtual channel identifier received from said narrowband switch means to said one B-ISDN customer.
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Specification