Distributed subnet manager for infiniband networks

• US 9,438,479 B1
• Filed: 03/23/2016
• Issued: 09/06/2016
• Est. Priority Date: 09/23/2015
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Friedman, Alex, Gavrilov, Constantine
• Primary Examiner(s): Tiv, Backhean
• Application Number:
  US15/078,018
• Time in Patent Office: 167 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 41/042 comprising distributed management centres cooperatively managing the network
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 41/0869 Validating the configuration within one network element
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 43/0811 by checking connectivity
• CPC Class Codes: H04L 45/54 Organization of routing tables
• CPC Class Codes: H04L 49/3009 Header conversion, routing tables or routing tags

Abstract

In an approach for distributed management of a network, a processor discovers a network, wherein the network is comprised of a plurality of nodes and an at least one switch. A processor identifies a first port associated with the at least one node. A processor identifies a link between the first port and a second port within the network. A processor determines the at least one link is properly configured. A processor selects a first node of the plurality of nodes to be a master node, wherein the master node is configured to manage the network. A processor initializes a routing table, wherein the routing table contains locations of each node in the plurality of nodes and a location of the at least one switch. A processor adjusts by the first node, the routing table based on the change to the network.

Claims

1. A method for distributed management of a network, the method comprising:

discovering, by one or more processors, a network, wherein the network is comprised of a plurality of nodes and at least one switch;

identifying, by one or more processors, a first port associated with the at least one node;

identifying, by one or more processors, a link between the first port and a second port within the network;

determining, by one or more processors, the at least one link is properly configured;

selecting, by one or more processors, a first node of the plurality of nodes, wherein the first node provides subnet administrator functionality;

determining, by one or more processors, that the first node is not a master node, wherein the master node is configured to manage the network;

identifying, by one or more processors, a second node that is the master node;

determining, by one or more processors, that the second node has entered a standby mode;

selecting, by one or more processors, the first node to be the master node;

initializing, by one or more processors, a routing table, wherein the routing table contains locations of each node of the plurality of nodes and a location of the at least one switch;

identifying, by one or more processors, a change to the network;

identifying, by one or more processors, that a third node within the network is malfunctioning;

establishing, by one or more processors, a routing path, wherein the routing path is a cross node routing path;

identifying, by one or more processors, that a fourth node is non-responding;

resetting, by one or more processors, a port associated with the fourth node;

assigning, by one or more processors, a network address to each node incorporated into the network;

invalidating, by one or more processors, network addresses associated with each node removed from the network;

determining, by one or more processors, that an address associated with at least one port has changed;

invalidating, by one or more processors, the address associated with the at least one port;

identifying, by one or more processors, an updated address associated with the at least one port; and

adjusting, by one or more processors, the routing table to include the updated address associated with the at least one port, based on the change to the network.