International Business Machines Corporation

Paul Henry Hernandez

Andrew Dunshea

Adekunle Bello

Nikhil Hegde

Aruna Yedavilli

A service module that provides for discovery of one or more network interfaces connecting a prospective remote procedure call (RPC) client, facilitates the provision of RPC programs in a network including multi-horned systems. When a request for a network address to an RPC application providing an RPC program is received from the RPC client, the RPC bind daemon discovers from the module, using the client response address, over which interface(s) the client is accessible. The daemon then selects an address of a network path to the RPC application that the prospective client can access and returns the corresponding network address. The service module monitors the network stack for RPC get address requests and builds tables of client address entries with corresponding network interface identifiers. The entries are retired according to an aging policy.

Remote procedure call (RPC) bind service with physical interface query and selection

A service module that provides for discovery of one or more network interfaces connecting a prospective remote procedure call (RPC) client, facilitates the provision of RPC programs in a network including multi-horned systems. When a request for a network address to an RPC application providing an RPC program is received from the RPC client, the RPC bind daemon discovers from the module, using the client response address, over which interface(s) the client is accessible. The daemon then selects an address of a network path to the RPC application that the prospective client can access and returns the corresponding network address. The service module monitors the network stack for RPC get address requests and builds tables of client address entries with corresponding network interface identifiers. The entries are retired according to an aging policy. When multiple network paths to the RPC application are available, the service can be selected using a heuristic such as preferred interface, non-firewalled interface, least number of return path links or other criteria.

An Intelligent Network Information Server Search (INSS) decreases search time required for a client to find a network information server. A cumulative history file stores a history of network information server availability, a number of communication attempts, and a communication success rate. INSS uses a ypservers file list, and orders the network information server search according to a cumulative server success rate. A system administrator may optionally define the search order with a user defined weight given to one or more of the servers. The server link and history may be stored in a random access memory to improve performance.

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Austin, TX, United States of America

Paul Henry Hernandez