US5644713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of effecting dynamic management of path or routing information without requiring an internetworking operation for routing
Assignee: Furukawa Electric Co Ltd
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Filing: 1995-05-02
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Granted: 1997-07-01
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Expires: 2015-05-02
Abstract
Abstract In a method for transferring path information of an internetworking equipment (router), the router is connected to an alternative router or routers by means of a circuit of an ISDN, whereby routing information between networks is communicated. When activated, the first router is connected to a circuit in response to a request for routing information transmission, and transmits all pieces of routing information to the alternative router(s). When it is connected to the circuit in response to a request for some other transmission than the routing information transmission, the first router exchanges the routing information with the alternative router(s). When the routing information is changed, the first router is connected to the circuit in response to a request for routing information transmission, and transmits the routing information to the other router(s) without executing periodical updating.
Inventors
- 👤 Tomonori Makishima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:20
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/46; H04L12/4604; H04L12/4612; H04L45/00; H04L45/02; H04L45/04; H04L45/28
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
101 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, said method comprising: an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted.
Claim 2
Independent Claim
101 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, said method comprising: an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted.
Claim 3
Independent Claim
173 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, wherein said routing information comprises a plurality of pieces and said method comprises: a start transmission process for transmitting all of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of said path or routing information at a time of activation of said first internetworking equipment; and an exchange process for exchanging at least some of said pieces of said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted.
Claim 4
Independent Claim
173 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, wherein said routing information comprises a plurality of pieces and said method comprises: a start transmission process for transmitting all of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of said path or routing information at a time of activation of said first internetworking equipment; and an exchange process for exchanging at least some of said pieces of said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted.
Claim 5
Dependent Claim
36 words
A method according to claim 2, wherein said exchange process comprises transmitting to said alternative internetworking equipment only pieces of said path or routing information which have changed since a preceding path or routing information exchange.
Claim 6
Dependent Claim
27 words
A method according to claim 2, wherein said exchange process comprises transmitting all of said pieces of said path or routing information to said alternative internetworking equipment.
Claim 7
Independent Claim
146 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, said method comprising: an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted; a modified transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path information is changed.
Claim 8
Independent Claim
146 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, said method comprising: an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted; a modified transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path information is changed.
Claim 9
Independent Claim
172 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, wherein said routing information comprises a plurality of pieces and said method comprises: a start transmission process for transmitting all of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of-said path or routing information at a time of activation of said first internetworking equipment; and a modified transmission process for transmitting at least some of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path or routing information is changed.
Claim 10
Independent Claim
172 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of a circuit, and for communicating said path or routing information between computer networks respectively coupled to said first internetworking equipment and said alternative internetworking equipment, wherein said routing information comprises a plurality of pieces and said method comprises: a start transmission process for transmitting all of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of-said path or routing information at a time of activation of said first internetworking equipment; and a modified transmission process for transmitting at least some of said pieces of said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path or routing information is changed.
Claim 11
Independent Claim
197 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of circuit, and for communicating said path or routing information between computer networks respectively coupled to said first working equipment and said alternative internetworking equipment, said method comprising: a start transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of said path or routing information at a time of activation of said first internetworking equipment; an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted; and a modified transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path or routing information is changed.
Claim 12
Independent Claim
197 words
A method for transferring path or routing information of a first internetworking equipment, which is connected to at least one alternative internetworking equipment by means of circuit, and for communicating said path or routing information between computer networks respectively coupled to said first working equipment and said alternative internetworking equipment, said method comprising: a start transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for a transmission of said path or routing information at a time of activation of said first internetworking equipment; an exchange process for exchanging said path or routing information with said alternative internetworking equipment in response to a request for transmission of said path or routing information, said path or routing information being transmitted also when data other than said path or routing information is transmitted; and a modified transmission process for transmitting said path or routing information to said alternative internetworking equipment in a manner such that said circuit is internetworked in response to a request for the transmission of said path or routing information when said path or routing information is changed.
Claim 13
Independent Claim
53 words
A method according to any one of claims 1, 5 or 7, wherein said path or routing information comprises a plurality of pieces and said exchange process comprises transmitting to said alternative internetworking equipment only pieces of said path or routing information which have changed since a preceding path or routing information exchange.
Claim 14
Independent Claim
54 words
A method according to any one of claims 5, 6 or 7, wherein said path or routing information comprises a plurality of pieces and said modified transmission process comprises transmitting to said alternative internetworking equipment only pieces of said path or routing information which have changed since a preceding path or routing information exchange.
Claim 15
Independent Claim
44 words
A method according to any one of claims 1, 5 or 7, wherein said path or routing information comprises a plurality of pieces and said exchange process comprises transmitting all of said pieces of said path or routing information to said alternative internetworking equipment.
Claim 16
Independent Claim
45 words
A method according to any one of claims 5, 6 or 7, wherein said path or routing information comprises a plurality of pieces and said modified transmission process comprises transmitting all of said pieces of said path or routing information to said alternative internetworking equipment.
Claim 17
Dependent Claim
86 words
A method according to claim 10, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said exchange process comprises learning changes in said path or routing information and transmitting to said alternative internetworking equipment all of said pieces of said path or routing information including information indicative of a disappearance of pieces of said path or routing information, if any, erased since a preceding path or routing information transmission.
Claim 18
Dependent Claim
72 words
A method according to claim 10, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said exchange process comprises learning changes in said path or routing information, erasing routing information previously learned from said alternative internetworking equipment as a partner of exchange, and holding path or routing information recently received from said alternative internetworking equipment.
Claim 19
Dependent Claim
103 words
A method according to claim 10, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said exchange process comprises transferring a signal indicative of an end of transmission between the first internetworking equipment and the alternative internetworking equipment, learning path or routing information when an exchange of said path or routing information with said alternative internetworking equipment is completed, and comparing said exchanged path or routing information with path or routing information previously learned, thereby detecting a disappearance of pieces of said path or routing information.
Claim 20
Dependent Claim
87 words
A method according to claim 11, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said modified transmission process comprises learning changes in said path or routing information and transmitting to said alternative internetworking equipment all of said pieces of said path or routing information including information indicative of a disappearance of pieces of said path or routing information, if any, erased since a preceding path or routing information transmission.
Claim 21
Dependent Claim
73 words
A method according to claim 11, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said modified transmission process comprises learning changes in said path or routing information, erasing routing information previously learned from said alternative internetworking equipment as a partner of exchange, and holding path or routing information recently received from said alternative internetworking equipment.
Claim 22
Dependent Claim
104 words
A method according to claim 11, wherein: said first internetworking equipment comprises a memory for storing path or routing information for an optimum path or routing between the respective computer networks, and said modified transmission process comprises transferring a signal indicative of an end of transmission between the first internetworking equipment and the alternative internetworking equipment, learning path or routing information when an exchange of said path or routing information with said alternative internetworking equipment is completed, and comparing said exchanged path or routing information with path or routing information previously learned, thereby detecting a disappearance of pieces of said path or routing information.
Claim 23
Independent Claim
57 words
A method according to any one of claims 2, 6 or 7, wherein: said at least one alternative internetworking equipment comprises a plurality of pieces of internetworking equipment, and said start transmission process comprises making a connection to each of said plurality of pieces of internetworking equipment via the circuit when said first internetworking equipment is activated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-30 | 2000-12-30 | 2001-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-30 | 2004-12-30 | 2005-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-30 | 2008-12-30 | 2009-07-01 | $7700.00 | Window Closed / Lapsed |