公开(公告)号：EP2058986B1

公开(公告)日：2010-09-01

申请号：EP07720919.5

申请日：2007-04-23

申请人： Huawei Technologies Co., Ltd.

发明人： LI, Qiao ,  XU, Zhanqi ,  HUO, Jing ,  SU, Yang ,  WANG, Fei

IPC分类号： H04L12/56

CPC分类号： H04L45/125 ,  H04L45/00 ,  H04L45/12 ,  H04L45/62 ,  H04L47/70 ,  H04L47/724

摘要： A method for determining a routing path, includes: receiving a service connection request information which includes a source node identifier and a destination node identifier; based on a network topology information comprising a wavelength link and logical link and the service connection request information, looking for a path whose cost function value is minimal between the source node and destination node in each wavelength plane, where the cost function value of the said logical link is less than the cost function value of any wavelength link; determining the said path whose cost function value is minimal as the routing path of the current service. Also a routing path determination unit utilizes sufficiently the network bandwidth resource by preferably using the logical link and considering that the available bandwidth and the influence of the wavelength link number on the path choice in the existed logical link.

公开(公告)号：EP2058986B2

公开(公告)日：2014-06-18

申请号：EP07720919.5

申请日：2007-04-23

申请人： Huawei Technologies Co., Ltd.

发明人： LI, Qiao ,  XU, Zhanqi ,  HUO, Jing ,  SU, Yang ,  WANG, Fei

IPC分类号： H04L12/70

CPC分类号： H04L45/125 ,  H04L45/00 ,  H04L45/12 ,  H04L45/62 ,  H04L47/70 ,  H04L47/724

公开(公告)号：EP2058986A1

公开(公告)日：2009-05-13

申请号：EP07720919.5

申请日：2007-04-23

申请人： Huawei Technologies Co., Ltd.

发明人： LI, Qiao ,  XU, Zhanqi ,  HUO, Jing ,  SU, Yang ,  WANG, Fei

IPC分类号： H04L12/56

CPC分类号： H04L45/125 ,  H04L45/00 ,  H04L45/12 ,  H04L45/62 ,  H04L47/70 ,  H04L47/724

摘要： A method for determining a routing path includes: receiving a service connection request message, where the service connection request message includes a source node identifier and a sink node identifier; searching for the path with the minimum cost function value between the source node and the sink node on each wavelength plane according to the network topology information that includes wavelength links and logic links as well as the service connection request information, where the cost function value of a logic link is less than that of any wavelength link in the network; selecting the path with the minimum cost function value as a routing path of the current service. A routing path determining unit is disclosed. Therefore, by preferring the logic link and allowing for the impact caused by the available bandwidth and the quantity of wavelength links in the existing logic links onto routing, the bandwidth resources of the network are utilized most efficiently.

摘要翻译： 一种用于确定路由路径的方法包括：接收服务连接请求消息，其中所述服务连接请求消息包括源节点标识符和宿节点标识符; 根据包括波长链路和逻辑链路的网络拓扑信息以及服务连接请求信息，在每个波长平面上的源节点和汇聚节点之间的最小成本函数值搜索路径，其中成本函数值 逻辑链路小于网络中任何波长链路的逻辑链路; 选择具有最小成本函数值的路径作为当前服务的路由路径。 公开路由路径确定单元。 因此，通过优选逻辑链路并允许现有逻辑链路中的可用带宽和波长链路的数量引起的影响进行路由，网络的带宽资源被最有效地利用。