Multi-layer class identifying communication apparatus with priority control
First Claim
1. A multi-layer class identifying communication apparatus, which is provided with an input interface connected to input communication lines, a switch circuit and an output interface connected to output communication lines, and has a capability of allocating a plurality of IP-QOS (Internet.Protocol-Quality-of-Service) codes from information contained in a packet data received through one of said input communication lines, said apparatus comprising:
- an allocating section provided in said input interface, which allocates said IP-QOS codes based on a combination of information contained in an IP packet header and a TCP header defined by an OSI reference model; and
a priority control section, which carries out a delay priority control and a discard priority control depending on a delay class and a discard class respectively, and each class corresponding to any of said IP-QOS codes allocated by said allocating section.
1 Assignment
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Accused Products
Abstract
A multi-layer class identifying communication apparatus, includes an input interface connected to input communication lines; a switch circuit; and an output interface connected to output communication lines. The input interface comprises an allocating section which determines a class identifier indicative of one of classes to which an IP packet belongs, from header data of the IP packet received through one of the input communication lines, and allocates an IP-QOS (Internet-Protocol-Quality-of-Service) code to the IP packet. The switch circuit selects one of the output communication lines based on a destination address of the IP packet, such that the IP packet is outputted from the output interface to the selected output communication output interface.
39 Citations
10 Claims
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1. A multi-layer class identifying communication apparatus, which is provided with an input interface connected to input communication lines, a switch circuit and an output interface connected to output communication lines, and has a capability of allocating a plurality of IP-QOS (Internet.Protocol-Quality-of-Service) codes from information contained in a packet data received through one of said input communication lines, said apparatus comprising:
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an allocating section provided in said input interface, which allocates said IP-QOS codes based on a combination of information contained in an IP packet header and a TCP header defined by an OSI reference model; and a priority control section, which carries out a delay priority control and a discard priority control depending on a delay class and a discard class respectively, and each class corresponding to any of said IP-QOS codes allocated by said allocating section. - View Dependent Claims (2, 3, 4, 5)
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6. A multi-layer class identifying communication method, in an apparatus provided with an input interface connected to input communication lines, a switch circuit and an output interface connected to output communication lines, and has a capability of allocating a plurality of IP-QOS (Internet-Protocol-Quality-of-Service) codes from information contained in a packet data received through one of said input communication lines, said method comprising:
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allocating said IP-QOS codes based on a combination of information contained in an IP packet header and a TCP header defined by an OSI reference model by an allocating section provided in said input interface; and carrying out a delay priority control and a discard priority control depending on a delay class and a discard class respectively, and each class corresponding to any of said IP-QOS codes allocated by said allocating section by a priority control section. - View Dependent Claims (7, 8, 9, 10)
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Specification