Network interfacing apparatus and method using attachment port and repeater
First Claim
1. A network interfacing apparatus comprising:
- plurality of working ports, not directly connected to each other, coupled to a plurality of nodes;
a repeater for coupling to each working port;
an address table for storing addresses of said working ports;
an attachment port, not directly connected to the repeater, coupled to a network for receiving an incoming information packet therefrom, and sending an outgoing information packet thereto, said incoming packet containing a destination address;
an incoming packet controller coupled to said address table, said attachment port, said repeater, and said working ports through said repeater, said controller determining whether said destination address matches any of the addresses stored in said address table, and in response to a destination address match, said controller sending said incoming packet to said working ports;
packet scrambler coupled to the incoming packet controller for providing a scrambled information packet so that in response to a destination address match, the corresponding working port receives the incoming information packet and at least one other working port receives the scrambled information packet; and
an outgoing packet controller coupled to said address table, said attachment port, said repeater, and said working ports through said repeater, said outgoing controller receiving said outgoing information packet from one of said working ports, and determining whether an outgoing address contained in said outgoing packet matches any of the addresses stored in said address table, and if no outgoing address match is found, said controller sending said outgoing packet to said network via said attachment port.
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Accused Products
Abstract
An apparatus for interfacing a plurality of nodes to a network includes a plurality of working ports coupled to the nodes, an attachment port coupled to the network, an address table for storing addresses associated with the working ports, an incoming packet controller, and an outgoing packet controller. The incoming packet controller receives an incoming information packet from the network via the attachment port, and determines whether a destination address contained in the incoming packet matches one of the addresses stored in the address table. If a destination address match is found, then it is concluded that the incoming packet is intended for one of the working ports. Consequently, the incoming packet is sent to the working ports. If no destination address match is found, the incoming packet controller prevents the packet from being sent to the working ports, thereby eliminating unnecessary signal traffic to the ports. Similarly, the outgoing packet controller receives an outgoing information packet from one of the working ports, and determines whether an outgoing address contained in the packet matches any of the addresses in the address table. If an outgoing address match is found, then it is known that the packet is intended for one of the working ports. As a result, the outgoing packet is not sent to the network but is instead repeated to the working ports. On the other hand, if an outgoing address is not found, then the outgoing packet is sent to the network via the attachment port. By sending only non-local packets onto the network, the apparatus of the present invention reduces network traffic, thereby increasing network efficiency.
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Citations
20 Claims
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1. A network interfacing apparatus comprising:
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plurality of working ports, not directly connected to each other, coupled to a plurality of nodes; a repeater for coupling to each working port; an address table for storing addresses of said working ports; an attachment port, not directly connected to the repeater, coupled to a network for receiving an incoming information packet therefrom, and sending an outgoing information packet thereto, said incoming packet containing a destination address; an incoming packet controller coupled to said address table, said attachment port, said repeater, and said working ports through said repeater, said controller determining whether said destination address matches any of the addresses stored in said address table, and in response to a destination address match, said controller sending said incoming packet to said working ports; packet scrambler coupled to the incoming packet controller for providing a scrambled information packet so that in response to a destination address match, the corresponding working port receives the incoming information packet and at least one other working port receives the scrambled information packet; and an outgoing packet controller coupled to said address table, said attachment port, said repeater, and said working ports through said repeater, said outgoing controller receiving said outgoing information packet from one of said working ports, and determining whether an outgoing address contained in said outgoing packet matches any of the addresses stored in said address table, and if no outgoing address match is found, said controller sending said outgoing packet to said network via said attachment port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for interfacing a plurality of working ports having addresses associated therewith to a network, with the ports not directly connected to each other, but each coupling to a repeater, the method comprising the steps of:
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receiving an incoming information packet having a destination address contained therein; determining whether said destination address matches any of the addresses associated with the working ports; sending said incoming information packet to said working ports through the repeater if a destination address match is found so that the working port corresponding to the destination address receives the incoming information packet; sending a scrambled information packet to the working ports if the destination address match is found so that at least one working port having an address which does not match said destination address receives the scrambled information packet; receiving an outgoing information packet from one of said working ports through the repeater, said outgoing packet containing an outgoing address; determining whether said outgoing address matches any of the addresses associated with the working ports; and sending said outgoing information packet to the network if an outgoing address match is not found. - View Dependent Claims (17, 18, 19, 20)
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Specification