RESPONSE TO OTUK-BDI FOR OTN INTERFACES TO RESTORE BIDIRECTIONAL COMMUNICATIONS
摘要
In an OTN (Optical Transport Network), an OTN interface of a network element may receive a BDI (Backwards Defect Indicator) signal from a far end network element to which OTN frames are being transmitted. A BDI signal indicates the occurrence of a unidirectional failure in the transmission of OTN frames to which the far end network element responds by switching its routing to the network element. The OTN interface generates an AIS (Alarm Indication Signal) for its network element so that the network element switches network communication channels to the far end network element to ensure bidirectional switching upon a unidirectional failure.
申请公布号
WO2008154181(A1)
申请公布日期
2008.12.18
申请号
WO2008US65246
申请日期
2008.05.30
申请人
CISCO TECHNOLOGY, INC.;BIANCHI, DAVID;PARTHASARATHY, ANAND GIRISH;XU, YA