Issue Description Description on the flow control of the NG SDH EFT data board. Alarm Information Null Handling Process (1) All the VCTRUNK support flow control As for all the EFT boards (EFT4, EFT8 and EFT8A), all the vctrunk support flow control. (2) The flow control mode is irrelevant to the working mode No matter… Read More »
Keywords: MSTP, SDH, OptiX OSN 9500 Abstract: For an SSN4EGS4/SSN5EFS0/SSN3EFS4/SSN3EGS2/SSN1EFS0A/SSN1EMS2 board of version 2.44 or earlier, an SSN2EGT2 board of version 2.19 or earlier, and SSJ6EGT6A board of all static versions, binding timeslots on new VCTRUNKs with LCAS enabled may result in the interruption of existing services after the boards are warm reset. [Problem Description] Trigger… Read More »
Summary: The SDH(Huawei network product distributor) trail management window displays two trails with the same source or/and sink. A user regards one of them as a duplicate or useless service and deactivates it, which causes interruption of unrelated trails. [Problem Description] Trigger conditions: SDH trail search is performed on one client while SDH trail creation… Read More »
Network survivability reflects the network in case of failure, Able to maintain the service capability, the survival mechanisms of the network, topology, available resources, coordination mechanisms for survivability has a significant impact. In terms of the transport network, SDH survivability as one of the most distinctive part, to lay the basis of SDH transmission technology… Read More »
The SNCP and SNCMP were switched due to the fiber was cut and entered the WTR state when the fiber restore, the WTR time of SNCP is normal but SNCMP is abnormal. For example , the WTR time was configed is 600s. the state of SNCP wait 600s enter normal after WTR ,but the SNCMP… Read More »
Firstly, Eth service is running on MSTP link with virtual concatenation. And it’s configured with LCAS. Customer complains the link interrupts occasionally for a short time.Alarm FCS_ERR,ALM_GFP_dLFD report at the same time. The issue happens 8 times in one month.Topology as attached. Version of equipment and boards as below:OSN3500: V100R008C01B01C EGS4: 1.17 OSN8800: V100R006C01 EGSH:… Read More »
Configuration Process This topic describes how to configure the two-fiber unidirectional MSP service. Prerequisites The physical topology of the network must be created. The NEs, boards, and fibers must be created on the U2000. Lower order cross-connection resources must meet service configuration requirements. For details on how to query lower order cross-connection resources, see Querying Lower Order… Read More »
Networking Diagram The networking diagram of a single two-fiber unidirectional MSP ring is simple. When you construct the network, follow a certain order to create and name these NEs and ensure that the traffic flows in a proper direction. This helps when you plan the traffic direction planning and service configuration in future. As shown… Read More »
Configuration Networking Diagram For the two-fiber bidirectional MSP ring in a single ring network, the configuration networking diagram is relative simple. In the network construction, you should create and name NEs in sequence according to the certain direction, which helps you facilitate the planning of the service flow and service configuration. Figure 1 shows a two-fiber… Read More »
OTN, everybody now talking OTN, instead of CWDM/DWDM, what exactly OTN was, here we collect some document and information, to show you some basic fundamental about OTN. History of transport network ITU-T OTN Definition Firstly What is OTN? OTN is an industry-standard optical transport protocol ITU G.872 “Architecture for the Optical Transport Network (OTN)” (Oct… Read More »
