US5528763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 11:32
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.
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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) | 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 |