公开(公告)号：US07688833B2

公开(公告)日：2010-03-30

申请号：US10280177

申请日：2002-10-24

Applicant: Shane J O'Neill ,  Paul Linehan ,  Mark Carson

Inventor： Shane J O'Neill ,  Paul Linehan ,  Mark Carson

IPC: H04L12/28 ,  H04L12/56 ,  H04J3/16 ,  H04J3/22

CPC classification number: H04J3/1611 ,  H04J2203/0003 ,  H04J2203/0025

Abstract: In order to enable nodes with a single protocol switch core to be used in a synchronous transmission network carrying both SDH and SONET traffic then one option is to convert traffic between protocols at the various network nodes. For example, if the network node has a switch core arranged for SONET, then when SDH traffic arrives at that node it can first be converted to SONET before being processed by the switch core and then converted back to SDH again if required. Known methods of converting between SONET and SDH are not suited for use at egress points of network nodes where pointer alignment processes do not occur. A new method of converting between SONET and SDH is described which overcomes these problems by reordering the position of stuff columns.

Abstract translation: 为了使具有单个协议交换机核心的节点能够在携带SDH和SONET业务的同步传输网络中使用，则一种选择是在各种网络节点之间的协议之间转换业务。 例如，如果网络节点具有为SONET安排的交换机核心，则当SDH业务到达该节点时，可以在交换机核心处理之前首先将其转换为SONET，然后如果需要，则再次转换回SDH。 在SONET和SDH之间转换的已知方法不适用于不发生指针对齐过程的网络节点的出口点。 描述了在SONET和SDH之间转换的新方法，其通过重新排列填充列的位置来克服这些问题。