| 发明名称 | Method and system for reducing traffic disturbance in a communication network caused by intermittent failure | ||
| 摘要 | A method may include: (i) in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: (a) transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active; and (b) initiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and (ii) in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: (a) maintaining, by the first network element, its state in the first state; and (b) continuing, by the first network element, the wait to restore timer. | ||
| 申请公布号 | US9013977(B2) | 申请公布日期 | 2015.04.21 |
| 申请号 | US201113156071 | 申请日期 | 2011.06.08 |
| 申请人 | Fujitsu Limited | 发明人 | Singh Rajnath;Wu Guoliang;Traylor David;Ho Si Long;Hu Chenjiang;Pickering Ladan S. |
| 分类号 | H04L12/26;H04L1/00;H04B10/032;H04L12/933;H04L12/707;H04L12/703 | 主分类号 | H04L12/26 |
| 代理机构 | Baker Botts L.L.P. | 代理人 | Baker Botts L.L.P. |
| 主权项 | 1. A method for reducing intermittent failure and traffic disturbance in a communication network, comprising: in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active, the protection switching group including the protection path and the working path wherein the first state is State I of the G.8031 standard; andinitiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: maintaining, by the first network element, its state in the first state; andcontinuing, by the first network element, the wait to restore timer. | ||
| 地址 | Kawasaki-shi JP | ||