Network element including automatic network element identity information registration apparatus and method

• US 5,539,881 A
• Filed: 12/14/1992
• Issued: 07/23/1996
• Est. Priority Date: 12/14/1992
• Status: Expired due to Term

• Current Assignee: AT&T IPM Corp. (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Welles, Christopher S., Hunt, Christopher J.
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): PERVEEN, REHANA
• Application Number:
  US07/990,479
• Time in Patent Office: 1,317 Days
• Field of Search: 395/200, 395/153, 395/700, 395/500, 395/200.02, 370/88
• US Class Current: 709/242
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 61/4517 using open systems interconnection [OSI] directories, e.g. X.500
• CPC Class Codes: H04L 69/00 Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass networks security protocols H04L9/40; wireless communication networks H04W
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04Q 2213/13516 agents or brokers - user, terminal etc., also OSI agent/managers
• CPC Class Codes: H04Q 3/0062 Provisions for network management

Abstract

In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, automatic registration network element identity information is realized by employing a routing exchange protocol to dynamically maintain identity information of network elements reachable within the network, enhancing the routing exchange protocol interface to automatically supply an indication of detection of a newly reachable network element to an applications layer protocol, and using the indentity information of a newly reachable network element in the applications layer protocol of the DSNE to establish communications with the newly reachable network element. Then, the newly reachable network element supplies additional identity information (e.g., its name, network address and the like) to the DSNE. The DSNE, upon receiving the additional identity information, supplies its identity information to the newly reachable network element. Consequently, the identity information of the DSNE is supplied to each newly reachable network element as it is added to the network. This provides all network elements the capability of establishing communications with the DSNE, so that queries can be made for identity information of other network elements in the sub-network. The retrieved identity information can, in turn, be used by the individual network elements to establish communications with other network elements in the sub-network.

Claims

1. A network element for use in a digital transmission system including at least one other network element comprising:

processor means loaded with software for supporting an open standard interface (OSI) protocol stack having at least a network layer including routing protocols and an application layer including a directory distribution protocol, said OSI stack including at least one other OSI layer between said network layer and said application layer;

means for connecting said network element to one or more other network elements via a data communications channel, said data communications channel being intended to transport OSI protocol stack data;

means for utilizing said OSI routing protocols for detecting via received OSI protocol stack data that another network element has become reachable and for automatically providing an indication of said network element being reachable directly to said directory distribution protocol in said applications layer;

means for automatically obtaining network identity information from the indicated newly reachable network element using said OSI protocol stack;

means for automatically supplying network identity information network element to the newly reachable network element using said OSI protocol stack; and

means for utilizing said OSI routing protocols for detecting via received OSI protocol stack data that another network element has ceased to be reachable and for automatically providing an indication of said network element ceasing to be reachable directly to said directory distribution protocol in said applications layer, an indication that said network element was reachable being removed from said routing table upon said detection that it has ceased to be reachable.

2. A network element as defined in claim 1 further including means for establishing a routing table including indications of network elements in said network layer, an indication of said network element becoming reachable being included as an entry in said routing table and means for providing direct access from said applications layer to said routing table and the entries therein in said network layer.

3. A network element as defined in claim 2 further including means for supplying said indication from said directory distribution protocol in said applications layer to a distribution manager, said distribution manager including a directory information base and means for adding identity information of newly reachable network elements to said directory information base.

4. A network element as defined in claim 1 further including means for supplying said indication from said directory distribution protocol in said applications layer to a distribution manager, said distribution manager including a directory information base and means for deleting identity information of network elements which have ceased to be reachable from said directory information base.

5. A network element as defined in claim 1 further including a directory information base and wherein said means for automatically obtaining identity information includes means responsive to reception of an indication of a newly reachable network element for sending a registration initialization request to the newly reachable network element and means for adding the received network identity information of said newly reachable network element to said directory information base.

6. A method for use in a network element to be employed in a digital transmission system including at least one other network element comprising the steps of:

supporting software including an open standard interface (OSI) protocol stack having at least a network layer including routing protocols and an application layer including a directory distribution protocol, the OSI stack including at least one other OSI layer between said network layer and said application layer;

connecting said network element to one or more other network elements via a data communications channel, said data communications channel being intended to transport OSI protocol stack data;

utilizing said OSI routing protocols for detecting via received OSI protocol stack data that another network element has become reachable and for automatically providing an indication of said network element being reachable directly to said directory distribution protocol in said applications layer;

automatically obtaining network identity information from the indicated newly reachable network element using said OSI protocol stack;

automatically supplying network identity information of this network element to the newly reachable network element using said OSI protocol stack; and

utilizing said OSI routing protocols for detecting via received OSI protocol stack data that another network element has ceased to be reachable and for automatically providing an indication of said network element ceasing to be reachable directly to said directory distribution protocol in said applications layer and deleting an indication that said network element was reachable from said routing table upon said detection that it has ceased to be reachable.

7. The method as defined in claim 6 further including the steps of establishing a routing table including indications of network elements in said network layer, an indication of said network element becoming reachable, being included as an entry in said routing table and providing direct access from said applications layer to said routing table and the entries therein in said network layer.

8. The method as defined in claim 7 further including the steps of supplying said indication from said directory distribution protocol in said applications layer to a distribution manager, said distribution manager including a directory information base and adding identity information of newly reachable network elements to said directory information base.

9. The method as defined in claim 6 further including the steps of supplying said indication from said directory distribution protocol in said applications layer to a distribution manager, said distribution manager including a directory information base and deleting identity information of network elements which have ceased to be reachable from said directory information base.

10. The method as defined in claim 6 wherein said step of automatically obtaining identity information includes a step of sending, in response to reception of an indication of a newly reachable network element, a registration initialization request to the newly reachable network element and adding the received network identity information of said newly reachable network element to a directory information base.