公开(公告)号：US20170237654A1

公开(公告)日：2017-08-17

申请号：US15500549

申请日：2015-03-25

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Yoshio Turner ,  Hyojoon Kim

IPC: H04L12/703 ,  H04L12/801 ,  H04L29/06 ,  H04L12/753 ,  H04L12/741

CPC classification number: H04L45/28 ,  H04L41/0604 ,  H04L41/0668 ,  H04L45/48 ,  H04L45/54 ,  H04L47/12 ,  H04L69/03

Abstract: Examples relate to fast failover recovery in software defined networks. In some examples, a failure in a first primary tree is detected during data transmission of a data packet, where the primary tree is associated with a first group entry that is configured to direct each of the data packets to one of a first set of destination devices. A notification of the failure is sent to a remote controller device, where the remote controller device identifies backup trees of the route trees that does not include the failure. After the remote controller device updates the first group entry to be associated with a first backup tree that minimizes congestion, each of the data packets are sent to one of a second set of destination devices that are associated with the first backup tree.

公开(公告)号：US20170222931A1

公开(公告)日：2017-08-03

申请号：US15500260

申请日：2014-09-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Yoshio Turner ,  Jose Renato G. Santos ,  Hyojoon Kim

IPC: H04L12/801 ,  H04L12/741

CPC classification number: H04L47/12 ,  H04L12/6418 ,  H04L45/745

Abstract: Examples relate to dynamic allocation of flow table capacity. In some examples, packet-in events of a networking device are monitored and processed to create active flow entries in a flow table. After detecting that the packet-in events at the networking device exceed an overload threshold, the active allocation of the flow table is increased. At this stage, a backup flow is removed from the flow table based on the active allocation.