Internet protocol assists for high performance LAN connections

• US 6,014,699 A
• Filed: 08/29/1997
• Issued: 01/11/2000
• Est. Priority Date: 08/29/1997
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ratcliff, Bruce H., Valley, Stephen R.
• Primary Examiner(s): Burgess, Glenton B.
• Assistant Examiner(s): HO, CHUONG T
• Application Number:
  US08/921,433
• Time in Patent Office: 865 Days
• Field of Search: 395/200.54, 395/200.66, 370/257, 370/402, 370/338, 370/60, 370/252, 709/220-226, 709/254
• US Class Current: 709/224
• CPC Class Codes: H04L 12/4604 LAN interconnection over a backbone network, e.g. Internet, Frame Relay
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/10 of different types
• CPC Class Codes: H04L 61/45 Network directories; Name-to-address mapping
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

An apparatus for dynamically providing a host information about all functions supported by a communication platform provided in a computing network environment is presented. The computing network environment is also provided with a gateway device that is electronically connected at least to one initiating host and at least one receiving host, besides the associated communication platform. The apparatus comprises of a handshaking component for determining address and other information about all hosts to be inputted in a port-sharing table. Means is also provided for checking all host connections at preselected intervals to ensure their connection status availability and all necessary changes are made in the port-sharing table in case any host connection becomes unavailable. A receiving component obtains IP datagrams related to a particular initiating host after a special IP address command has been issued relating to that initiating host. Comparing means will then check the entries of the port-sharing table for a match and if no match is found the information about the initiating host is inputted in the port-sharing table.

Claims

1. In a computing network environment having a gateway device, said gateway device being electronically connected to at least one initiating host and at least one receiving host, an apparatus for dynamically configuring and monitoring hosts electronically connected to said gateway device comprising:

a handshaking component for determining IP address and other information obtainable about hosts initially electronically connected to said gateway device;

a port-sharing table accessible to said gateway device for storing information obtained through said handshaking component;

said gateway device having means for checking a host connection to ensure connection status availability;

said gateway device making necessary changes in said port-sharing table in case any host connection becomes unavailable;

a receiving component for obtaining IP datagrams and configuration information relating to a particular initiating host after a special IP address command has been received by said gateway device from said particular initiating host;

means for comparing said IP datagrams for said particular initiating host with said IP addresses and other information previously stored in said port-sharing table; and

means for adding said information relating to said particular initiating host to said port-sharing table, if a complete match is not found between said IP datagram, configuration and address information of said particular initiating host and said IP address and information stored previously in said port-sharing table.

2. The apparatus of claim 1, wherein said at least one receiving host is electronically connected to said gateway device through a local area network and said special IP Address command is a SET IP ADDRESS command.

3. The apparatus of claim 2, wherein said SET IP ADDRESS command is issued when a first initiating host is communicating with a first receiving host.

4. The apparatus of claim 3 wherein upon receiving a SET IP ADDRESS command port number, IP address and subnet mask information of said particular initiating host is obtained and added to said port-sharing table if said information is not already in said port-sharing table.

5. The apparatus of claim 4, wherein before establishing communication between said first initiating host and said first receiving host, Maximum Transmission Unit (MTU) size allowable is checked for said first initiating host.

6. The apparatus of claim 1, wherein said gateway device has an associated communication platform using IP communication protocols.

7. The apparatus of claim 6, wherein said communication platform is an integrated platform.

8. The apparatus of claim 6, wherein said communication platform is an open systems adapter platform.

9. The apparatus of claim 6, wherein said computing network environment uses TCP/IP communication protocol.

10. The apparatus of claim 6, wherein said computing network environment uses UDP/IP communication protocol.

11. The apparatus of claim 6, wherein a platform communication protocol is also used and said platform communication protocol is LAN Channel Station interface protocol.

12. The apparatus of claim 6, wherein said computing network environment uses VTAM communication protocol.

13. The apparatus of claim 1, wherein said network computing environment uses MVS operating system.

14. The apparatus of claim 1, wherein said gateway device is electronically connected to a plurality of local area networks.

15. The apparatus of claim 14, wherein said plurality of local area networks each are of different type and associated with them different and independent communication platforms.

16. The apparatus of claim 1, wherein said gateway device is electronically connected to at least one wide area network.