Hewlett Packard Enterprise Development LP

Hewlett-packard Development Company, L.p.

Robert Teisberg

John W Butler

Guodong Zhang

Paul Vu

Charles L Hudson

Daniel Nathan Cripe

David Kasperson

Michael L Witkowski

David J Koenen

Alexander Kramer

Mike Witkowski

Amitabha Biswas

Harish B Kamath

Mehrdad Khalili

Charles S Greenidge

Mark Richard Enstone

Prashant Modi

Mike Chuang

Gaines C Teague

Kathryn Hampton

Yiu Yip

Doris Sayon

Dennis G Delahoussaye

Bruce N Campbell

Frederick Grant Kuhns

An example device includes a processor; a first interface port forming a first datalink to a core network device via a first interconnect device; and a second interface port forming a second datalink to the core network device via a second interconnect device, the first and second datalinks being redundant connections of a link aggregation group (LAG) including a plurality of multiplexed connections within a single network media. The processor is to: remove the first interconnect device while maintaining the second datalink; update firmware of the first interconnect device upon receiving a first indication that the first interconnect device has stopped receiving or transmitting data; and reestablish the redundant connections of the first interconnect device upon receiving a second indication that the first interconnect device has been added back to the LAG. The first and second indications include indications of states in each connection of the multiplexed connections.

Firmware update of an interconnect device

One embodiment describes a network system. The system includes a primary enclosure including a network switch system that includes a plurality of physical interface ports. A first one of the plurality of physical interface ports is to communicatively couple to a network. The system further includes a sub-enclosure comprising a network interface card (NIC) to which a computer system is communicatively coupled and a downlink extension module (DEM) that is communicatively coupled with the NIC and a second one of the plurality of physical interface ports of the network switch system to provide network connectivity of the computer system to the network via the network switch system.

Switch network architecture

A network switching environment includes a network switch coupled to a port extension module by one or more network cables, and a management resource coupled to the switch and the port extension module. The configurations of the network switch and the port extension module may be dynamically controlled by a management resource to adjust to changes in the maximum bandwidth provided by the one or more network cables. The management resource may implement the network switch and port extension module configurations according to a predetermined target configuration and the connection configuration of the network switch and the port extension module.

Speed determination for network ports

In one example in accordance with the present disclosure, a system for auto-negotiation over extended backplane includes an enclosure and a switch external to the enclosure. The enclosure has a NIC (network interface controller) for a server in the enclosure and a DEM (downlink extension module). The DEM has a single DEM PHY connected to the NIC via a backplane and also connected to the switch via an external connection. The DEM PHY facilitates auto-negotiation between the switch and the NIC.

Auto-negotiation over extended backplane

Some implementations of the disclosure are directed to an interconnect including: a plurality of ports; a processor; and a non-transitory computer readable medium have instructions stored thereon, that when executed by a processor, cause the interconnect device to: track a link state of a first port of the plurality of ports, where tracking the link state of the first port comprises tracking when a physical link of the first port transitions between a linked state and an unlinked state; determine, using at least the tracking of when the physical link of the first port transitions between the linked state and the unlinked state, that the first port is in an unstable link state; and when the first port is in an unstable link state, transmitting a message to an interconnect management device, the message including an indication that the first port is in an unstable link state.

Interconnect port link state monitoring utilizing unstable link state analysis

Various examples disclosed herein relate to determining switch load values for a switch according to a weighted score for categorized network traffic. In some examples, traffic volume information is determined for a switch in a network. The traffic volume information can include volume of network traffic for the switch for multiple time parameters. The network can include multiple switches. The switches can be associated with loss potential information based on a topology of the switches. The traffic volume information can be categorized into multiple categories. Multiple switch load values can be determined for the switch. Each switch load value can correspond to one of the multiple time parameters. Further, each switch load value can be determined according to a weighted score for each categorized network traffic and according to the loss potential information.

Determining switch load values for switches

Systems and methods for distributed configuration of one or more network interface cards (NICs) are disclosed. An exemplary method comprises issuing a request frame including at least a current configuration generation for the NICs from a host computing device to a network device. The method also comprises returning at least one configuration frame including a newer network configuration for the NICs from the network device to the host computing device. The method also comprises configuring the NICs at the host computing device with the newer network configuration.

Distributed configuration of network interface cards

A method and system that comprises a central processing unit (CPU) and a first and second network adapter that are teamed together is disclosed. The network adapters in the team may be adapted to offload connections to transfer a plurality of packets. A program, executing on the CPU, may reload an offloaded connection established by the first network adapter onto the second network adapter if one of a plurality of packets associated with the offloaded connection was received on the second network adapter.

Method and system of teamed network adapters with offloaded connections

Embodiments include methods, apparatus, and systems for managing connectivity in a virtual network. One embodiment determines if information received from a device in a virtual land area network (VLAN) matches a configuration of a virtual connect domain (VCD) in order to label links as being either internal or external.

Managing connectivity in a virtual network

A computer system aggregates a plurality of network resources of a computer system. The computer system has a plurality of processing nodes. Each of the processing nodes includes one or more of the plurality of network resources. The one or more resources of each processing node makes up a bypass protocol stack operable to provide offloaded connections over a network to instances of one or more applications running on the system. Each of the applications is uniquely associated with a first port number. The system is identified on the network by a global IP address and each of the plurality of nodes is identified by a unique local IP address. Each of the plurality of resources is uniquely identified by an assigned private IP address. At each of the processing nodes, a listening socket is created for each instance of the plurality of applications running on the node. The listening socket is created by associating it with a first endpoint tuple that includes the public IP address uniquely identifying the node and the first port number associated with the application for which the listening socket is created. The first endpoint tuple associated with each listening socket created is translated to a set of bypass endpoint tuples, each of the set of bypass tuples including a different one of the assigned private IP addresses identifying the one or more network resources of the node. Each listening socket is associated with the set of bypass tuples. A global address translation map is maintained for each set of bypass tuples associated with each of the listening sockets created for an instance of each of the applications running on the plurality of processing nodes.

Aggregation over multiple processing nodes of network resources each providing offloaded connections between applications over a network

A computer system aggregates a plurality of network resources of a computer system. The plurality of network resources forms a bypass stack operable to provide offloaded connections to one or more applications available on the computer system. Each of the applications is associated with a first port number. The computer system itself is addressable on the network by a public IP address. The system assigns private IP addresses to uniquely identify each of the plurality of network resources. The system creates a socket for each application by which the application can communicate with the network. The socket is associated with a first endpoint tuple that includes the public IP address and the first port number associated with the application for which the socket is created. The socket is further associated with a set of bypass endpoint tuples that are translated from the first endpoint tuple, each of the set including a different one of the private IP addresses. Each of the bypass endpoint tuples is available to be a transport address to define an offloaded connection to the application through one of the network resources. The created socket can be a listening one at a server node or a connection one at a client node.

Growing community of inventors

Georgetown, TX, United States of America

Robert Teisberg