Patent US5528763A successfully refreshed from Google Patents.
US5528763A
Expired / Lapsed
US
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System for admitting cells of packets from communication network into buffer of attachment of communication adapter
Assignee: Cisco Technology Inc
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Filing: 1993-09-14
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Granted: 1996-06-18
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Expires: 2013-09-14
Abstract
Abstract A method and apparatus for admitting packets into the buffer of an attachment of a communications adapter. More specifically, a discard bit is maintained in a table of the attachment to indicate whether a cell of a packet was previously discarded because of a buffer full condition. All subsequently received cells of a packet are automatically discarded if the discard bit is in the state indicating that a cell was previously discarded because the buffer was full.
Inventors
- 👤 Dimitrios N. Serpanos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:46
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5614; H04L2012/5615; H04L2012/5638; H04L2012/5646; H04L2012/5647; H04L2012/5648; H04L2012/5651; H04L2012/5678; H04L2012/5681
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A method of admitting cells of packets from a communications network into a buffer of an attachment of an adapter attached to said communications network, said method comprising: a. storing a table with a plurality of entries in a memory of said adapter, with each of said entries in said table having an identification identifying one of said packets and a variable indicating whether a cell of said one packet indicating whether a cell of a corresponding one of said packets was previously refused admission into said buffer because space was unavailable in said buffer; and b. refusing to admit subsequently arriving cells of a packet of said packets from said network if an entry, of said entries, for latter said packet indicates that a cell of said packet was previously refused admission into said buffer.
Claim 2
Independent Claim
136 words
A method of admitting cells of packets from a communications network into a buffer of an attachment of an adapter attached to said communications network, said method comprising: a. storing a table with a plurality of entries in a memory of said adapter, with each of said entries in said table having an identification identifying one of said packets and a variable indicating whether a cell of said one packet indicating whether a cell of a corresponding one of said packets was previously refused admission into said buffer because space was unavailable in said buffer; and b. refusing to admit subsequently arriving cells of a packet of said packets from said network if an entry, of said entries, for latter said packet indicates that a cell of said packet was previously refused admission into said buffer.
Claim 3
Dependent Claim
37 words
A method as recited in claim 1 wherein said cells of said packets are interleaved with each other, and wherein each of said cells a multiplex identification therein indicating which one of said packets it belongs to.
Claim 4
Dependent Claim
33 words
A method as recited in claim 2, wherein said entries of said table are listed by a corresponding said multiplex identification for each of packets whose multiplex identification is listed in said table.
Claim 5
Independent Claim
132 words
An apparatus for admitting cells of packets from a communications network into a buffer of an attachment of an adapter attached to said communications network, said apparatus comprising: a. means for storing a table with a plurality of entries in a memory of said adapter, with each of said entries in said table having an identification identifying one of said packets and a variable indicating whether a cell of said one packet was previously refused admission into said buffer because space as unavailable in said buffer; and b. means for refusing to admit subsequently arriving cells of a packet of said packets from said network if an entry, of said entries, having said identification identifying latter said packet indicates that a cell of said packet was previously refused admission into said buffer.
Claim 6
Independent Claim
132 words
An apparatus for admitting cells of packets from a communications network into a buffer of an attachment of an adapter attached to said communications network, said apparatus comprising: a. means for storing a table with a plurality of entries in a memory of said adapter, with each of said entries in said table having an identification identifying one of said packets and a variable indicating whether a cell of said one packet was previously refused admission into said buffer because space as unavailable in said buffer; and b. means for refusing to admit subsequently arriving cells of a packet of said packets from said network if an entry, of said entries, having said identification identifying latter said packet indicates that a cell of said packet was previously refused admission into said buffer.
Claim 7
Dependent Claim
37 words
An apparatus as recited in claim 4 wherein said cells of said packets are interleaved with each other, and wherein each of said cells a multiplex identification therein indicating which one of said packets it belongs to.
Claim 8
Dependent Claim
33 words
An apparatus as recited in claim 4, wherein said entries of said table are listed by a corresponding said multiplex identification for each of packets whose multiplex identification is listed in said table.
References Cited (Backward Citations)
US4500990A
Cited
US4785449A
Cited
US4607363A
Cited
US4849968A
Cited
US4920534A
Cited
US4769811A
Cited
JPH01166644A
Cited
JPH01228242A
Cited
JPH022757A
Cited
US4953157A
Cited
JPH0322736A
Cited
JPH03190341A
Cited
CA2033290A1
Cited
JPH03205937A
Cited
JPH04838A
Cited
EP0475350A2
Cited
EP0481507A2
Cited
EP0481505A2
Cited
US5303238A
Cited
US5165021A
Cited
US5367643A
Cited
JPH04322538A
Cited
US5321695A
Cited
JPH04346538A
Cited
EP0516042A2
Cited
EP0526104A2
Cited
US5390299A
Cited
US5303302A
Cited
US5347514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-18 | 1999-12-18 | 2000-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-18 | 2003-12-18 | 2004-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-18 | 2007-12-18 | 2008-06-18 | $7700.00 | Window Closed / Lapsed |