Patent US2688460A successfully refreshed from Google Patents.
US7103054B2
Expired / Lapsed
US
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Methods and arrangements for building a subsource address multicast distribution tree using point to point routing records
Assignee: International Business Machines Corp
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Filing: 2001-07-16
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Granted: 2006-09-05
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Expires: 2021-07-16
Abstract
Abstract Methods and arrangements for facilitating multicast communication among at least two nodes in a distributed network configured for point to point communications. Each router node is provided with a first switching arrangement adapted to route a message between a publisher node and a subscriber node in accordance with a first protocol, and a second switching arrangement adapted to route a message between the publisher node and the subscriber node in accordance with a second protocol.
Inventors
- 👤 Marcos N. Novaes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:55
CPC Classifications
H; H04; H04L; H04L45/00; H04L12/00; H04L12/02; H04L12/16; H04L12/18; H04L12/1854; H04L45/16; H04L45/52; H04L12/1836; H04L12/185
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
162 words
A method of facilitating multicast communication among at least two nodes in a distributed network configured for point to point communications, said method comprising the steps of: designating no more than one of the nodes as a publisher node; designating at least one of the nodes as a subscriber node; and designating at least one of the subscriber nodes as a router node; providing each router node with a first switching arrangement, the first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and providing each router node with a second switching arrangement, the second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol; wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
Claim 2
Independent Claim
162 words
A method of facilitating multicast communication among at least two nodes in a distributed network configured for point to point communications, said method comprising the steps of: designating no more than one of the nodes as a publisher node; designating at least one of the nodes as a subscriber node; and designating at least one of the subscriber nodes as a router node; providing each router node with a first switching arrangement, the first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and providing each router node with a second switching arrangement, the second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol; wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
Claim 3
Dependent Claim
47 words
The method according to claim 1 , wherein: said step of providing a first switching arrangement comprises providing a first set of at least one routing cable; and said step of providing a second switching arrangement comprises providing a second set of at least one routing table.
Claim 4
Dependent Claim
31 words
The method according to claim 2 , wherein said step of providing a second set of at least one routing table comprises providing at least one subsource addressing multicast routing table.
Claim 5
Dependent Claim
32 words
The method according to claim 2 , wherein said step of providing a first set of at least one routing table comprises providing at least one point to point protocol routing table.
Claim 6
Dependent Claim
27 words
The method according to claim 4 , wherein said step of providing at least one point to point protocol routing table comprises providing an IP routing table.
Claim 7
Dependent Claim
41 words
The method according to claim 1 , further comprising the steps of: propagating a message from said subscriber node to said publisher node using the second protocol; said propagating step comprising propagating the message hop-by-hop via at least one router node.
Claim 8
Dependent Claim
44 words
The method according to claim 1 , further comprising the steps of: propagating a message from said publisher node to said subscriber node using the second protocol; said propagating step comprising propagating the message directly to at least one router node via protocol tunnelling.
Claim 9
Dependent Claim
21 words
The method according to claim 1 , wherein the first protocol comprises a native point to point protocol of the network.
Claim 10
Independent Claim
149 words
An apparatus for facilitating multicast communication among at least two nodes in a distributed network, said apparatus comprising: an arrangement for designating no more than one of the nodes as a publisher node; an arrangement for designating at least one of the nodes as a subscriber node; and an arrangement for designating at least one of the subscriber nodes as a router node, wherein each router node comprises: a first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and a second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol, wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
Claim 11
Independent Claim
149 words
An apparatus for facilitating multicast communication among at least two nodes in a distributed network, said apparatus comprising: an arrangement for designating no more than one of the nodes as a publisher node; an arrangement for designating at least one of the nodes as a subscriber node; and an arrangement for designating at least one of the subscriber nodes as a router node, wherein each router node comprises: a first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and a second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol, wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
Claim 12
Dependent Claim
37 words
The apparatus according to claim 9 , wherein: said first switching arrangement comprises a first set of at least one routing table; and said second switching arrangement comprises a second set of at least one routing table.
Claim 13
Dependent Claim
26 words
The apparatus according to claim 10 , wherein said second set of at least one routing table comprises at least one subsource addressing multicast routing table.
Claim 14
Dependent Claim
26 words
The apparatus according to claim 10 , wherein said first set of at least one routing table comprises at least one point to point routing table.
Claim 15
Dependent Claim
24 words
The apparatus according to claim 12 , wherein said at least one point to point routing table comprises at least one IP routing table.
Claim 16
Dependent Claim
43 words
The apparatus according to claim 9 , further comprising: an arrangement for propagating a message from said subscriber node to said publisher node using the second protocol; said propagating arrangement being adapted to propagate the message hop-by-hop via at least one router node.
Claim 17
Dependent Claim
46 words
The apparatus according to claim 9 , further comprising: an arrangement for propagating a message from said publisher node to said subscriber node using the second protocol; said propagating arrangement being adapted to propagate the message directly to at least one router node via protocol tunnelling.
Claim 18
Dependent Claim
21 words
The apparatus according to claim 9 , wherein said first protocol comprises a native point to point protocol of the network.
Claim 19
Dependent Claim
179 words
A computer program storage device readable by a computer, tangibly embodying a computer program of instructions executable by a processor to perform the method steps for facilitating multicast communication among at least two nodes in a distributed network, said method comprising the steps of: designating no more than one of the nodes as a publisher node; designating at least one of the nodes as a subscriber node; and designating at least one of the subscriber nodes as a router node; providing each router node with a first switching arrangement, the first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and providing each router node with a second switching arrangement, the second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol, wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
Claim 20
Dependent Claim
179 words
A computer program storage device readable by a computer, tangibly embodying a computer program of instructions executable by a processor to perform the method steps for facilitating multicast communication among at least two nodes in a distributed network, said method comprising the steps of: designating no more than one of the nodes as a publisher node; designating at least one of the nodes as a subscriber node; and designating at least one of the subscriber nodes as a router node; providing each router node with a first switching arrangement, the first switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a first protocol; and providing each router node with a second switching arrangement, the second switching arrangement connected to route a message between said publisher node and said subscriber node in accordance with a second protocol, wherein the two protocols utilize distinct addressing schemes, and further, at least one of the addressing schemes utilizes a subsource addressing multicast protocol including an application specific predicate field related to a network address.
References Cited (Backward Citations)
US5355371A
Cited
US4999833A
Cited
US4864559A
Cited
US5784557A
Cited
US5831975A
Cited
US6584075B1
Cited
US6611528B1
Cited
US6529498B1
Cited
US6778532B1
Cited
US6330229B1
Cited
US6763007B1
Cited
US6621798B1
Cited
US6707796B1
Cited
US6697365B1
Cited
US6862279B1
Cited
US6526054B1
Cited
US6693907B1
Cited
US20020012327A1
Cited
US20040213233A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-09-04 | 2010-03-06 | 2010-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-09-04 | 2014-03-06 | 2014-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-09-04 | 2018-03-06 | 2018-09-05 | $7700.00 | Window Closed / Lapsed |