Abstract: A processor initiates an execution of a network driver in a first node comprising a master node of a plurality of nodes in a switchless network. The network driver configures the plurality of nodes and service level in the switchless network by transmitting management datagrams from the master node, wherein the management datagrams include an attribute that allows the management 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.

Abstract: Provided are a method, a system, and a computer program product in which a switchless network is maintained. A processor discovers 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.

Abstract: A plurality of nodes are maintained in a switchless network, wherein each of the plurality of nodes has at least one host channel adapter for communication. A management datagram that indicates source to destination routes for communication in the plurality of nodes is provided. An attribute is configured in the management datagram to allow the management datagram to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters.

Abstract: Communication of a node is maintained in a switchless network via point-to-point connections of a plurality of nodes having a plurality of ports. Address Resolution Protocol (ARP) announces are performed, via a virtual network device of the node, periodically or in response to an occurrence of a change in the node, for communications among the plurality of nodes in the switchless network.

Abstract: Remotely debugging a non-responsive operating system (OS) of a computer system. Central processing units (CPUs) in a computer system are bound to receive queues of a network adapter. Interrupts for a CPU is disabled, wherein the CPU is not available to process hardware interrupt requests queued in the bound receive queues. A debugging message including debugging commands is received by the network adapter, wherein the debugging message is stored in a first receive queue of the network adapter bound to a first CPU. If the first CPU is available, the debugging commands in the debugging message stored in the first of the one or more receive queues of the network adapter are identified by a debugger of the computer system. The identified debugging commands are executed by the CPU to debug the non-responsive OS of the computer system.

Abstract: Provided are a method, a system, and a computer program product in which a switchless network is maintained. A processor discovers 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.

Abstract: A processor initiates an execution of a network driver in a first node comprising a master node of a plurality of nodes in a switchless network. The network driver configures the plurality of nodes and service level in the switchless network by transmitting management datagrams from the master node, wherein the management datagrams include an attribute that allows the management 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.

Abstract: A plurality of nodes are maintained in a switchless network, wherein each of the plurality of nodes has at least one host channel adapter for communication. A management datagram that indicates source to destination routes for communication in the plurality of nodes is provided. An attribute is configured in the management datagram to allow the management datagram to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters.

Abstract: Provided are a method, a system, and a computer program product in which a switchless network is maintained. A processor discovers 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.

Abstract: A processor initiates an execution of a network driver in a first node comprising a master node of a plurality of nodes in a switchless network. The network driver configures the plurality of nodes and service level in the switchless network by transmitting management datagrams from the master node, wherein the management datagrams include an attribute that allows the management 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.

Abstract: A plurality of nodes are maintained in a switchless network, wherein each of the plurality of nodes has at least one host channel adapter for communication. A management datagram that indicates source to destination routes for communication in the plurality of nodes is provided. An attribute is configured in the management datagram to allow the management datagram to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters.

Abstract: A connection management message that uses a proxy attribute is received, wherein the connection management message includes information on a first proxy queue pair and a second proxy queue pair, wherein the first proxy queue pair provides communication between a proxy node and an initiator node in a switchless network, and wherein the second proxy queue pair provides communication between the proxy node and a target node in the switchless network. The connection management message that uses the proxy attribute, channels datagrams received from the initiator node to the target node in the switchless network.

Abstract: Remotely debugging a non-responsive operating system (OS) of a computer system. Central processing units (CPUs) in a computer system are bound to receive queues of a network adapter. Interrupts for a CPU is disabled, wherein the CPU is not available to process hardware interrupt requests queued in the bound receive queues. A debugging message including debugging commands is received by the network adapter, wherein the debugging message is stored in a first receive queue of the network adapter bound to a first CPU. If the first CPU is available, the debugging commands in the debugging message stored in the first of the one or more receive queues of the network adapter are identified by a debugger of the computer system. The identified debugging commands are executed by the CPU to debug the non-responsive OS of the computer system.

Abstract: Remotely debugging a non-responsive operating system (OS) of a computer system. Central processing units (CPUs) in a computer system are bound to receive queues of a network adapter. Interrupts for a CPU is disabled, wherein the CPU is not available to process hardware interrupt requests queued in the bound receive queues. A debugging message including debugging commands is received by the network adapter, wherein the debugging message is stored in a first receive queue of the network adapter bound to a first CPU. If the first CPU is available, the debugging commands in the debugging message stored in the first of the one or more receive queues of the network adapter are identified by a debugger of the computer system. The identified debugging commands are executed by the CPU to debug the non-responsive OS of the computer system.

Abstract: A connection management message that uses a proxy attribute is received, wherein the connection management message includes information on a first proxy queue pair and a second proxy queue pair, wherein the first proxy queue pair provides communication between a proxy node and an initiator node in a switchless network, and wherein the second proxy queue pair provides communication between the proxy node and a target node in the switchless network. The connection management message that uses the proxy attribute, channels datagrams received from the initiator node to the target node in the switchless network.

Abstract: A plurality of nodes are maintained in a switchless network, wherein each of the plurality of nodes has at least one host channel adapter for communication. A management datagram that indicates source to destination routes for communication in the plurality of nodes is provided. An attribute is configured in the management datagram to allow the management datagram to be propagated among the plurality of nodes of the switchless network without being terminated at host channel adapters.

Abstract: Provided are a method, a system, and a computer program product in which a switchless network is maintained. A processor discovers 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.

Abstract: A processor initiates an execution of a network driver in a first node comprising a master node of a plurality of nodes in a switchless network. The network driver configures the plurality of nodes and service level in the switchless network by transmitting management datagrams from the master node, wherein the management datagrams include an attribute that allows the management 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.

Abstract: Remotely debugging a non-responsive operating system (OS) of a computer system. Central processing units (CPUs) in a computer system are bound to receive queues of a network adapter. Interrupts for a CPU is disabled, wherein the CPU is not available to process hardware interrupt requests queued in the bound receive queues. A debugging message including debugging commands is received by the network adapter, wherein the debugging message is stored in a first receive queue of the network adapter bound to a first CPU. If the first CPU is available, the debugging commands in the debugging message stored in the first of the one or more receive queues of the network adapter are identified by a debugger of the computer system. The identified debugging commands are executed by the CPU to debug the non-responsive OS of the computer system.

Abstract: Communication of a node is maintained in a switchless network via point-to-point connections of a plurality of nodes having a plurality of ports. Address Resolution Protocol (ARP) announces are performed, via a virtual network device of the node, periodically or in response to an occurrence of a change in the node, for communications among the plurality of nodes in the switchless network.