EP0724374A2
Expired / Lapsed
EP
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ATM network control apparatus
Assignee: Canon Inc
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Filing: 1996-01-25
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Granted: —
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Expires: 2016-01-25
Abstract
Abstract An ATM network control apparatus comprises an ATM packet receiving unit for receiving an ATM packet; a storage unit for storing a table of header information of at least one communication network; a changing unit for changing header of the ATM packet received by the ATM packet receiving unit on the basis of information obtained by referring to the header of the ATM packet and the table stored in the storage unit; and an output unit for outputting the ATM packet whose header is changed by the changing unit to a corresponding communication network, and aforesaid units are connected to a general purpose bus line and a high-speed bus line so that the ATM network communication apparatus can be easily and cheaply constructed in accordance with a purpose and a scale of a network.
Inventors
- 👤 Genmei Miura
- 👤 Takahiro Tsukamoto
- 👤 Koumei Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 12:55
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L; H04L12/00; H04L12/66; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5603; H04L2012/5609; H04L2012/5612; H04L2012/5613; H04L2012/5614; H04L2012/5615; H04L2012/5619
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
145 words
An ATM network control apparatus characterized by comprising: ATM packet receiving means (1) for receiving an ATM packet; storage means (2) for storing a table of header information of at least one communication network; changing means (2) for changing header of the ATM packet received by said ATM packet receiving means on the basis of information obtained by referring to the header of the ATM packet and the table stored in said storage means; output means (2) for outputting the ATM packet whose header is changed by said changing means to a corresponding communication network; a general purpose bus line (5) to which said ATM packet receiving means, said storage means, said changing means, and said output means are connected; and a high-speed bus line (6) to which said ATM packet receiving means, said storage means, said changing means, and said output means are connected.
Claim 2
Dependent Claim
18 words
The ATM network control apparatus according to claim 1, wherein said communication network is a local area network.
Claim 3
Dependent Claim
27 words
The ATM network control apparatus according to claim 1, further comprising a general purpose interface (4, 41, 42, 43, 44) having ATM packet assembling and disassembling means.
Claim 4
Dependent Claim
25 words
The ATM network control apparatus according to claim 1 further comprising updating means (3, 31, 602) for updating the table stored in said storage means.
Claim 5
Dependent Claim
22 words
The ATM network control apparatus according to claim 4, wherein said table includes information on virtual path identifiers and virtual channel identifiers.
Claim 6
Dependent Claim
27 words
The ATM network control apparatus according to claim 4, wherein said updating means (3, 31, 602) generates data for routing on the communication network in the table.
Claim 7
Dependent Claim
27 words
The ATM network control apparatus according to claim 1, wherein the ATM network control apparatus is constructed inside of a personal computer (601) or a work station.
Claim 8
Dependent Claim
64 words
An ATM network control method characterized by comprising the steps of: receiving an ATM packet; changing header of the ATM packet on the basis of information obtained by referring to the header of the ATM packet, received at said receiving step, and a header information table; and outputting the ATM packet whose header is changed at said changing means to a corresponding communication network.
Claim 9
Dependent Claim
18 words
The ATM network control method according to claim 8, wherein the communication network is a local area network.
Claim 10
Dependent Claim
15 words
The ATM network control method according to claim 8, wherein the table can be updated.
Claim 11
Dependent Claim
22 words
The ATM network control method according to claim 10, wherein the table includes information on virtual path identifiers and virtual channel identifiers.
Claim 12
Dependent Claim
20 words
The ATM network control method according to claim 10, wherein the table includes data for routing on the communication network.
Claim 13
Dependent Claim
141 words
An ATM network control apparatus which is connected to an ATM switching apparatus characterized by comprising: a plurality of network end means (904a ∼ 904d) for connecting to a plurality of networks, each of which includes: first determination means (909) for determining whether or not a destination of data sent from one of the plurality of communication networks, which is connected to one of the network end means, is for other communication network or for an ATM network; and first output means (909) for sending the data to outside of the network end means when it is determined that the destination of the data is for another communication network or for the ATM network; ATM packet assembling means (913) for assembling an ATM packet from the data; and transmission means (912) for transmitting the ATM packet to the ATM switching apparatus.
Claim 14
Dependent Claim
104 words
The ATM network control apparatus according to claim 13 further comprising: receiving means (912) for receiving an ATM packet from the ATM switching apparatus; changing means (913) for changing the ATM packet received by said receiving means to a data packet which is suitable for a destination communication network; second determination means (911) for determining whether the data packet changed by said changing means is addressed to one of said plurality of communication networks; and second output means (915) for outputting the data packet to a corresponding network end means when it is determined that the data packet is addressed for the communication network.
Claim 15
Dependent Claim
19 words
The ATM network control apparatus according to claim 13, wherein said plurality of communication networks are local area networks.
Claim 16
Dependent Claim
48 words
The ATM network control apparatus according to claim 14, further comprising first storage means (910) for storing a table of header information, wherein said second determination means (911) determines by referring to header (916 ∼ 919) of input data and the table stored in said first storage means.
Claim 17
Dependent Claim
61 words
The ATM network control apparatus according to claim 16, wherein each of said plurality of network end means (904a ∼ 904d) further includes second storage means (908) for storing a table of header information, and said first determination means (909) determines by referring to the header (916 ∼ 919) of the data and the table stored in said second storage means.
Claim 18
Dependent Claim
87 words
The ATM network control apparatus according to claim 17, wherein each of said plurality of network end means further comprises: a network transceiver (907) for transmitting and receiving data to/from at least one communication terminal which is connected to the network transceiver via a general purpose interface; network control means (909) for performing a predetermined control operation on the basis of information sent from the plurality of networks or the table stored in said first storage means; and supervising means (909) for supervising information on the network.
Claim 19
Dependent Claim
120 words
An ATM network control method used by an ATM network control apparatus characterized by comprising: a first determining step of determining whether or not a destination of data sent from one of a plurality of communication networks is for another communication network or for an ATM network; a first output step of sending the data to outside of the network which sent the data when it is determined that the destination of the data is for other communication network or for the ATM network; an ATM packet assembling step of assembling an ATM packet from the data; and a transmission step of transmitting the ATM packet assembled at said ATM packet assembling step outside of said ATM network control apparatus.
Claim 20
Dependent Claim
106 words
The ATM network control method according to claim 19 further comprising: a receiving step of receiving an ATM packet from outside of the ATM network control apparatus; a changing step of changing the ATM packet received at said receiving step to a data packet which is suitable for a destination communication network; a second determination step of determining whether the data packet changed at said changing step is addressed to one of said plurality of communication networks; and a second output step of outputting the data packet to a corresponding communication network when it is determined that the data packet is addressed for the communication network.
Claim 21
Dependent Claim
19 words
The ATM network control method according to claim 19, wherein said plurality of communication networks are local area networks.
Claim 22
Dependent Claim
32 words
The ATM network control method according to claim 19, wherein, at said first determination step, determination is performed by referring to header (916 ∼ 919) of the data and a predetermined table.
Claim 23
Dependent Claim
33 words
The ATM network control method according to claim 20, wherein, at said second determination step, determination is performed by referring to header (916 ∼ 919) of the data packet and a predetermined table.
References Cited (Backward Citations)
No citation records indexed.
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