公开(公告)号：US20150188831A1

公开(公告)日：2015-07-02

申请号：US14146482

申请日：2014-01-02

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Hamid Farmanbar ,  Hang Zhang

IPC: H04L12/835 ,  H04L12/803

CPC classification number: H04L47/30 ,  H04L47/125 ,  H04W28/0278

Abstract: Embodiments are provided for implementing traffic engineering (TE) using link buffer status. The link buffer status for each link is used to identify links with buffer build-ups. One or more of the capacity and resource parameters at the links with buffer build-ups are then reserved. This is achieved by modifying the capacity and resource input parameters to the TE model according to the level of build-ups in the link buffers, as reflected by the buffer status information from the links and nodes. The modified input capacity or resource parameters are then fed to a TE engine to calculate the routing of traffic across all links and paths. As such, the reserved capacity or resource is considered in the TE routing technique to route the traffic accordingly, leading to the depletion of link buffers with build-ups at all or multiple considered paths at the same time.

Abstract translation: 提供了使用链路缓冲器状态实现流量工程（TE）的实施例。 每个链路的链路缓冲区状态用于标识与缓冲区建立的链接。 然后保留与缓冲区建立链接的一个或多个容量和资源参数。 这是通过根据来自链路和节点的缓冲器状态信息反映的，根据链路缓冲器中的累积级别将容量和资源输入参数修改为TE模型来实现的。 修改的输入容量或资源参数然后被馈送到TE引擎以计算跨所有链路和路径的流量的路由。 因此，在TE路由技术中考虑预留容量或资源以相应地路由业务，导致链路缓冲器与所有或多个被考虑的路径同时累积的消耗。