Patent US4028989A successfully refreshed from Google Patents.
Patent EP0753952A2 successfully refreshed from Google Patents.
EP0753952A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Management of path routing in packet communication networks
Assignee: International Business Machines Corp
•
Filing: 1996-07-01
•
Granted: —
•
Expires: 2016-07-01
Abstract
Abstract A packet communications network includes a route management system in which routes can be remotely changed by using a simple set command to set a data value in the originating or terminating node of the route. Storage tables in the originating and destination nodes record the route changes and administrative data concerning the route. This administrative data can be retrieved from the originating node by simple get or get-next commands. The administrative data can include the specific specification of the route in links, the time of creation of the route, the route replaced and the reason for initiating the change in route. Together these capabilities permit centralized management of route changes in the entire network from a single manager node, and using only simple set, get and get-next command structures.
Inventors
- 👤 Andrew Hilliard Arrowood
- 👤 Charles A. Carriker, Jr.
- 👤 Anne Siegman Magnuson
- 👤 Sharon Marie Mcclernan
- 👤 Laura Marie Petri
- 👤 Leo Temoshenko
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 23:00
CPC Classifications
H; H04; H04L; H04L45/00; H04L45/42; H04L45/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
A packet communications network comprising a plurality of network nodes interconnected by transmission links; means for determining routes through said network from source nodes to corresponding destination nodes in said network, said source and destination nodes comprising the endpoints of said routes; means at one of said nodes in said network for managing said routes, said means comprising: means at each of said endpoints for storing the results of path changes originating at that endpoint; means at said one node for managing said routes by setting values in said endpoints, and means, responsive to said means for setting a value, for initiating a route change in a route endpoint.
Claim 2
Dependent Claim
34 words
A packet transmission network according to claim 1 further comprising means in each of said nodes for creating a route between an endpoint and another specified endpoint at the other end of a route.
Claim 3
Dependent Claim
32 words
The network according to claim 1 further comprising means at each said endpoint for initiating an identified hop-by-hop route between said endpoint and another endpoint at the other end of a route.
Claim 4
Dependent Claim
36 words
The network according to claim 1 further comprising means at each of said endpoints for storing the general results of each route change initiated at that endpoint in a multi-field entry of a path status table.
Claim 5
Dependent Claim
38 words
The network according to claim 1 further comprising a trigger data location at each of said endpoints which can be remotely set to a value representing the specification of a route originating or terminating at that respective endpoint.
Claim 6
Dependent Claim
66 words
The network according to claim 1 further comprising a path table at each said endpoint for identifying the elements of each path terminating at that endpoint, means for remotely specifying a path through said network by setting a value in said path table; and a path status table at each said endnode for storing the results of each attempt to alter a path at that endnode.
Claim 7
Independent Claim
125 words
A method for managing route changes in a packet communications network comprising the steps of interconnecting a plurality of network nodes by transmission links; determining routes through said network from source nodes to corresponding destination nodes in said network, said source nodes and destination nodes each comprising an endpoint of a route through said network; managing said routes from one of said nodes, said step of managing comprising the steps of storing, at each of said endpoints, the results of path changes originating at that endpoint; altering said routes from said one node by setting a value in said endpoint, and initiating a route change in a route originating or terminating at said endpoint in response to said setting of a value in said endpoint.
Claim 8
Dependent Claim
33 words
The method according to claim 7 further comprising the step of creating, at each of said endpoints, a route between that endpoint and an associated endpoint at the other end of said route.
Claim 9
Dependent Claim
45 words
The method according to claim 7 further comprising the steps of storing, in a path table, a specification of each route terminating at that endpoint, and storing, in a path status table, the results of each attempt to alter a route terminating at that endpoint.
Claim 10
Dependent Claim
23 words
The method according to claim 9 further comprising the step of remotely setting the value of said path specification in said path table.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.