Node discovery mechanisms in a switchless network

A method, comprising:

• maintaining a switchless network;
• and
• discovering, by a processor, a plurality of nodes in the switchless network by requesting and receiving port information and node information in association with an attribute that allows datagrams to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters of the plurality of nodes, wherein the discovering comprises:
• sending a port-specific management information to all local ports;
• sending node-specific management information on all ports that have operational links;
• and
• updating a list of unique discovered ports with a number for each of the unique discovered ports.

A system in communication with a plurality of nodes in a switchless network, the system comprising:

• a memory;
• and
• a processor coupled to the memory, wherein the processor performs operations, the operations comprising:
• maintaining a switchless network;
• and
• discovering, by a processor, a plurality of nodes in the switchless network by requesting and receiving port information and node information in association with an attribute that allows datagrams to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters of the plurality of nodes, wherein the discovering comprises:
• sending a port-specific management information to all local ports;
• sending node-specific management information on all ports that have operational links;
• and
• updating a list of unique discovered ports with a number for each of the unique discovered ports.

A computer program product, the computer program product comprising a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to perform operations, the operations comprising:

• maintaining a switchless network;
• and
• discovering, by a processor, a plurality of nodes in the switchless network by requesting and receiving port information and node information in association with an attribute that allows datagrams to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters of the plurality of nodes, wherein the discovering comprises:
• sending a port-specific management information to all local ports;
• sending node-specific management information on all ports that have operational links;
• and
• updating a list of unique discovered ports with a number for each of the unique discovered ports.