Patent US5619997A successfully refreshed from Google Patents.
Patent US5805594A successfully refreshed from Google Patents.
US5805594A
Expired / Lapsed
US
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Activation sequence for a network router
Assignee: International Business Machines Corp
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Filing: 1996-08-23
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Granted: 1998-09-08
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Expires: 2016-08-23
Abstract
Abstract Method and apparatus for enabling an IPX router to enter a network. The router does so by (a) transmitting on the network an RIP general request with null source and destination network designations; (b) receiving replies from other routers and determining therefrom the correct source and destination network designations; and thereafter (c) activating an interface to the network including transmitting a RIP response broadcast with the correct source and destination network designations; and (d) in the event that a reply is not received to the RIP general request within a predetermined time, otherwise activating the interface to the network.
Inventors
- 👤 Christopher Michael Kotchey
- 👤 Robert Edward Hartung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:53
CPC Classifications
H; H04; H04L; H04L45/00; H04L45/02; H04L45/04; H04L45/26
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
A method for operating a digital computing device to enable a router to enter a network, the router including a routing table, comprising the steps of: transmitting to said network a first general request broadcast with zero source and zero destination network numbers; receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers and information required for updating said routing table; and thereafter transmitting further general request and response broadcasts on said network, each with correct source and destination network numbers.
Claim 2
Independent Claim
89 words
A method for operating a digital computing device to enable a router to enter a network, the router including a routing table, comprising the steps of: transmitting to said network a first general request broadcast with zero source and zero destination network numbers; receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers and information required for updating said routing table; and thereafter transmitting further general request and response broadcasts on said network, each with correct source and destination network numbers.
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein said router is an Internet Packet exchange (IPX) router, wherein said first general request is a Routing Information Protocol (RIP) request, and wherein said response broadcasts include an RIP response.
Claim 4
Independent Claim
77 words
A method for operating a digital computing device to enable an Internet Packet exchange (IPX) router to enter a network, comprising the steps of: transmitting to said network a Routing Information Protocol (RIP) general request with zero source and zero destination network numbers; receiving replies from routers on said network and determining therefrom the correct source and destination network numbers; and thereafter transmitting an RIP response broadcast to said network with correct source and destination network numbers.
Claim 5
Independent Claim
77 words
A method for operating a digital computing device to enable an Internet Packet exchange (IPX) router to enter a network, comprising the steps of: transmitting to said network a Routing Information Protocol (RIP) general request with zero source and zero destination network numbers; receiving replies from routers on said network and determining therefrom the correct source and destination network numbers; and thereafter transmitting an RIP response broadcast to said network with correct source and destination network numbers.
Claim 6
Independent Claim
100 words
A method for operating a digital computing device to enable a router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; receiving a reply from another router on said network, said reply including a second network number; responsive to said first and second network numbers comparing equal, activating said router interface; and responsive to said first and second network numbers not comparing equal, terminating router interface activation.
Claim 7
Independent Claim
100 words
A method for operating a digital computing device to enable a router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; receiving a reply from another router on said network, said reply including a second network number; responsive to said first and second network numbers comparing equal, activating said router interface; and responsive to said first and second network numbers not comparing equal, terminating router interface activation.
Claim 8
Independent Claim
83 words
A method for operating a digital computing device to enable a router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; waiting for a predetermined time for a reply from another router on said network; responsive to expiration of said predetermined time without receiving said reply, activating said router interface.
Claim 9
Independent Claim
83 words
A method for operating a digital computing device to enable a router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; waiting for a predetermined time for a reply from another router on said network; responsive to expiration of said predetermined time without receiving said reply, activating said router interface.
Claim 10
Dependent Claim
16 words
The method of claim 5 wherein said router interface is activated with said first network number.
Claim 11
Independent Claim
128 words
A method for operating a digital computing device to enable router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; waiting for a predetermined time for a reply from any other router on said network; responsive to expiration of said predetermined time without receiving said reply, activating said router interface; and responsive to receiving a reply from any other router on said network prior to expiration of said predetermined time, said reply including a second network number, if said first and second network numbers compare equal, activating said router interface; otherwise, terminating router interface activation.
Claim 12
Independent Claim
128 words
A method for operating a digital computing device to enable router to enter a network, comprising the steps of: receiving a request from a host to activate a router interface to a network, said request including a first network number; transmitting to said network a first general request with a zero network number; waiting for a predetermined time for a reply from any other router on said network; responsive to expiration of said predetermined time without receiving said reply, activating said router interface; and responsive to receiving a reply from any other router on said network prior to expiration of said predetermined time, said reply including a second network number, if said first and second network numbers compare equal, activating said router interface; otherwise, terminating router interface activation.
Claim 13
Dependent Claim
73 words
A computer readable memory device used to enable a router to enter a network according to the steps of: transmitting to said network a first general request with zero source and zero destination network numbers; receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers; and thereafter transmitting further general request and response broadcasts on said network, each with correct source and destination network numbers.
Claim 14
Dependent Claim
73 words
A computer readable memory device used to enable a router to enter a network according to the steps of: transmitting to said network a first general request with zero source and zero destination network numbers; receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers; and thereafter transmitting further general request and response broadcasts on said network, each with correct source and destination network numbers.
Claim 15
Dependent Claim
73 words
A network router for activating router interface to a communications network, comprising: means for transmitting to said network a first general request with zero source and zero destination network numbers; means for receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers; and means for activating said router interface by transmitting further general request and response broadcasts, each with correct source and destination network numbers.
Claim 16
Dependent Claim
73 words
A network router for activating router interface to a communications network, comprising: means for transmitting to said network a first general request with zero source and zero destination network numbers; means for receiving replies from other routers on said network and determining therefrom the correct source and destination network numbers; and means for activating said router interface by transmitting further general request and response broadcasts, each with correct source and destination network numbers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-07 | 2002-03-09 | 2002-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-07 | 2006-03-09 | 2006-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-07 | 2010-03-09 | 2010-09-08 | $7700.00 | Window Closed / Lapsed |