Source routing with fabric switches in an ethernet fabric network

    公开(公告)号:GB2525823B

    公开(公告)日:2018-02-21

    申请号:GB201516051

    申请日:2014-01-30

    Applicant: IBM

    Abstract: In one embodiment, a computer program product includes a computer readable storage medium having program instructions embodied therewith. The embodied program instructions are readable/executable by a processor to receive, by the processor, a packet via a network fabric, the network fabric having a plurality of interconnected fabric switches. The embodied program instructions are also readable/executable by the processor to determine, by the processor, a path through the network fabric by consulting a source-routing table. Moreover, the embodied program instructions are readable/executable by the processor to store, by the processor, source-routing information to a packet header for the packet, the source-routing information including the path. In addition, the embodied program instructions are readable/executable by the processor to send, by the processor, the packet according to an indication in the source-routing information.

    Quantized congestion notification in a virtual networking system

    公开(公告)号:GB2525134B

    公开(公告)日:2017-02-22

    申请号:GB201515001

    申请日:2014-03-06

    Applicant: IBM

    Abstract: Embodiments of the invention provide a method for quantized congestion notification in a virtual networking system comprising multiple virtual networks (VNs). Each VN comprises at least one virtual machine (VM) configured to generate one or more packet flows. Each packet of each packet flow is tagged with a congestion notification (CN) tag. Each packet flow is mapped to a corresponding virtual tunnel end point (TEP) that distributes each packet of the packet flow. A congestion notification message (CNM) is generated for each congestion point (CP) associated with each packet flow. Each CP is mapped to a corresponding TEP that distributes each CNM for the CP, wherein the corresponding VTEP forwards the CNM to a VM contributing to packet congestion at the CP.

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