Patent US6122276A successfully refreshed from Google Patents.
US6122276A
Expired / Lapsed
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Communications gateway mapping internet address to logical-unit name
Assignee: Cisco Technology Inc
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Filing: 1997-07-09
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Granted: 2000-09-19
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Expires: 2017-07-09
Abstract
Abstract When a TN3270 client (14) uses the Transmission Control Protocol/Internet Protocol ("TCP/IP")to initiate contact with a TN3270 server (18) to obtain access to an applications program running on a host (12) with which the server (18) employs the Systems Network Architecture ("SNA")protocol to communicate, the server's SNA physical-unit process sends the host's systems service control point an SNA NMVT message that includes a physical-location subfield in a product-set-attributes subvector of a product-set-ID vector. The physical-location subfield includes the client's IP address and TCP port number so that host management applications can determine individual clients' usages without interrupting communications with the server.
Inventors
- 👤 Michael Boe
- 👤 Derek W. Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:20
CPC Classifications
H; H04; H04L; H04L67/00; H04L67/01; H04L67/08; H04L9/00; H04L9/40; H04L69/00; H04L69/26; H04L69/30; H04L69/32; H04L69/322; H04L69/329
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
In a communications gateway for forwarding to a Systems Network Architecture channel in a session between logical units information received from a client by way of an Internet Protocol link in Internet Protocol datagrams that include a source Information Protocol address and a Transmission Control Protocol port number, the improvement comprising circuitry that for each such session transmits over the SNA channel a Reply Product Set Id (PSID) vector that includes a physical-location subvector whose contents represent at least one of the Internet Protocol address and the Transmission Control Protocol port number.
Claim 2
Dependent Claim
92 words
In a communications gateway for forwarding to a Systems Network Architecture channel in a session between logical units information received from a client by way of an Internet Protocol link in Internet Protocol datagrams that include a source Information Protocol address and a Transmission Control Protocol port number, the improvement comprising circuitry that for each such session transmits over the SNA channel a Reply Product Set Id (PSID) vector that includes a physical-location subvector whose contents represent at least one of the Internet Protocol address and the Transmission Control Protocol port number.
Claim 3
Dependent Claim
30 words
A communications gateway as defined in claim 1 wherein the contents of the PSID vector's physical-location subvector represent both the Internet Protocol address and the Transmission Control Protocol port number.
Claim 4
Dependent Claim
23 words
A communications gateway as defined in claim 1 wherein the gateway transmits the Reply PSID vector in response to connection with the client.
Claim 5
Dependent Claim
17 words
A communications gateway as defined in claim 3 wherein the Reply PSID vector includes a power-on-indicating subfield.
Claim 6
Dependent Claim
42 words
A communications gateway as defined in claim 3 wherein the gateway additionally responds to disconnection from the client by transmitting a Reply PSID vector that includes a physical-location subvector whose contents represent the Internet Protocol address and/or Transmission Control Protocol port number.
Claim 7
Dependent Claim
24 words
A communications gateway as defined in claim 5 wherein the Reply PSID vector transmitted in response to the client's disconnection includes a power-off-indicating subfield.
Claim 8
Dependent Claim
89 words
In the method of forwarding to a Systems Network Architecture channel in a session between logical units information received from a client by way of an Internet Protocol link in Internet Protocol datagrams that include a source Information Protocol address and a Transmission Control Protocol port number, the improvement comprising transmitting over the SNA channel for each such session a Reply Product Set ID (PSID) vector that includes a physical-location subvector whose contents represent at least one of the Internet Protocol address and the Transmission Control Protocol port number.
Claim 9
Dependent Claim
89 words
In the method of forwarding to a Systems Network Architecture channel in a session between logical units information received from a client by way of an Internet Protocol link in Internet Protocol datagrams that include a source Information Protocol address and a Transmission Control Protocol port number, the improvement comprising transmitting over the SNA channel for each such session a Reply Product Set ID (PSID) vector that includes a physical-location subvector whose contents represent at least one of the Internet Protocol address and the Transmission Control Protocol port number.
Claim 10
Dependent Claim
29 words
A method as defined in claim 7 wherein the contents of the PSID vector's physical-location subvector represent both the Internet Protocol address and the Transmission Control Protocol port number.
Claim 11
Dependent Claim
25 words
A method as defined in claim 7 wherein the step of transmitting the Reply PSID vector is performed in response to connection to the client.
Claim 12
Dependent Claim
16 words
A method as defined in claim 9 wherein the Reply PSID vector includes a power-on-indicating subfield.
Claim 13
Dependent Claim
42 words
A method as defined in claim 9 further including the step of responding to disconnection from the client by transmitting a Reply PSID vector that includes a physical-location subvector whose contents represent the Internet Protocol address and/or Transmission Control Protocol port number.
Claim 14
Dependent Claim
23 words
A method as defined in claim 11 wherein the Reply PSID vector transmitted in response to the client's disconnection includes a power-off-indicating subfield.
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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) | 2003-09-19 | 2004-03-20 | 2004-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-19 | 2008-03-20 | 2008-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-19 | 2012-03-20 | 2012-09-19 | $7700.00 | Window Closed / Lapsed |