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Signaling among entities of a virtualized packet processing apparatus using in-band operations data included in packets being processed
Signaling among entities of a virtualized packet processing apparatus using in-band operations data included in packets being processed
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机译:虚拟化分组处理设备的实体中的信令使用包括在正在处理的数据包中的带内操作数据
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摘要
In one embodiment, in-band operations data included in packets being processed is used to signal among entities of a virtualized packet processing apparatus. Using in-band operations data provides insight on actual entities used in processing of the packet within the virtualized packet processing apparatus. The operations data in the packet is modified to signal a detected overload condition of an entity that participates in communicating the packet within the virtualized packet processing apparatus and/or applying a network service to the packet. An In-Situ Operations, Administration, and Maintenance (IOAM) header is used in one embodiment, with the IOAM header typically including a new Overload Flag to signal the detection of the overload condition. In response to the signaled overload condition, a load balancer is adjusted such that future packets are not distributed to the virtualized entity associated with the detected overload condition.
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