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The device provides the recycle bin. The file that is deleted through the delete command can be saved in the recycle bin. The file is deleted permanently if you run the delete/unreserved command.

The dir command does not display the files that are placed into the recycle bin. The files in the recycle bin can be displayed through the dir/all command only. The name of the file in the recycle bin is bracketed by square brackets ([]).


We have MA5683T, MA5608T.

The OptiX OSN equipment fails to interconnect with the SONET equipment. Check the relevant information. It is found that all the optical interface boards must be of the N2 series and that the pass-through services must be configured at the 3xAU-3 level. Otherwise, the interconnection fails.
Product

OptiX OSN 2500
Fault Type

Equipment_Interconnection_Fault
Symptom

On the STM-16 MSP ring comprising the OptiX OSN 2500, two stations are added with the N2SLQ1 boards, on which one STM-1 optical port is added to support the interconnection between the OptiX OSN 2500 and the SONET equipment. The pass-through services on the MSP ring are configured at the VC-4 level. Connect the analyzer to the OptiX OSN 2500 and the SONET equipment. It is found that the analyzer shows normal test results. Interconnect the OptiX OSN 2500 and the SONET equipment, perform the test again, and then find that the corresponding ports of the equipment on both the sides report AIS and that the services are unavailable.
Cause Analysis

The analysis result shows that the OptiX OSN 2500 and the SONET equipment are normal. Hence, the fault may exist in the interconnection. In this case, check whether the overheads of the OptiX OSN 2500 and the SONET equipment are consistent, whether the OptiX OSN 2500 and the SONET equipment has any restrictions on interconnection, or whether any special configurations are required.
Procedure

Check the relevant information. It is found that the SDH service configuration is correct, that the N2-series boards are auto-adaptive in interconnecting with the SONET equipment, and that the overheads such as the S1 byte are transparently transmitted.
Check other SDH boards. It is found that the N2-series optical interface boards are only used for interconnection and that the boards on the line side are N1-series optical interface boards. Then, it is confirmed that all the optical interface boards should be of the N2 series.
Replace the in-service N1-series optical interface boards with N2-series optical interface boards (including the N2SL16 and N2SLQ1). Configure the pass-through services on the entire MSP ring at the VC-4 level. The services, however, are still unavailable.
Refer to the deployment guide. It is found that the 3xAU-3 services are added to the N2-series optical interface boards. Note that the pass-through services must be configured at the 3xAU-3 level, not at the VC-4 level, in the case of interconnection with the SONET equipment.
When the pass-through services on the entire transmission link are configured at the 3xAU-3 level, the services are normal and the interconnection between the OptiX OSN equipment and the SONET equipment is successful.
Reference Information

The N2-series optical interface boards on the OptiX OSN equipment can interconnect with the SONET equipment only when the following conditions are met:
All the line boards must work with N2-series optical interface boards (for example the N2SL64, N2SL16, and N2SLQ1 boards), instead of the Q2SL16 and Q2SL4 boards.
The pass-through services must be configured at the 3xAU-3 level, not at the VC-4 level.

In V100R006SPC800 and later versions, switch interfaces cannot work at a lower speed through auto-negotiation by default. If two GE interfaces are connected using a 100M network cable (Category-5 or lower category cable), the interface speed cannot be negotiated as 100 Mbit/s and the two interfaces are in Down state. You can manually set the speed of the two interfaces to 100 Mbit/s or replace the 100M network cable with a 1000M cable.

As the wide use of broadband services and fiber-in and copper-out development, carriers require a longer transmission reach, higher bandwidth, reliability, and lower operating expense (OPEX) on services. GPON supports the following functions to meet these requirements:
Longer transmission distance: The transmission media of optical fibers covers up to 60 km coverage radius on the access layer, resolving transmission distance and bandwidth issues in twisted pair transmission.
Higher bandwidth: Each GPON port can support a maximum transmission rate of 2.5 Gbit/s in the downstream direction and 1.25 Gbit/s in the upstream direction, meeting the usage requirements of high-bandwidth services, such as high definition television (HDTV) and outside broadcast (OB).
Better user experience on full services: Flexible QoS measures support traffic control based on users and user services, implementing differentiated service provisioning for different users.
Higher resource usage with lower costs: GPON supports a split ratio up to 1:128. A feeder fiber from the CO equipment room can be split to up to 128 drop fibers. This economizes on fiber resources and O&M costs.

GPON ONU profiles include the DBA profile, line profile, service profile, and alarm profile.
DBA profile: A DBA profile describes GPON traffic parameters. A T-CONT is bound to a DBA profile for dynamic bandwidth allocation, improving upstream bandwidth utilization.
Line profile: A line profile describes the binding between the T-CONT and the DBA profile, the QoS mode of the traffic stream, and the mapping between the GEM port and the ONU-side service.
Service profile: A service profile provides the service configuration channel for the ONU that is managed by using optical network terminal management and control interface (OMCI).
Alarm profile: An alarm profile contains a series of alarm thresholds to measure and monitor the performance of activated ONU lines. When a statistical value reaches the threshold, the host is notified and an alarm is reported to the log host and the NMS.
Configure a DBA profile.
Run the display dba-profile command to query existing DBA profiles in the system. If the existing DBA profiles in the system do not meet the requirements, run the dba-profile add command to add a DBA profile.
Create the same DBA profile for different types of services. Set the profile name toftto_dba, profile type to type3, assured bandwidth to 8 Mbit/s, and maximum bandwidth to 50 Mbit/s.

The universal application of the several classes of enterprise access technology has its insufficient place: traditional SDH / MSTP has a good multi service bearing capacity, but the cost is relatively high, mainly used are very concerned about the quality of service of high-end clients to access; xDSL access multi service bearing lack of potential to be tapped, apply only to a small amount of speech + low rate for low-end applications for the broadband; but in the end, showing a hybrid of DDN, PDH, Ethernet technologies, these technologies in multi service bearing capability, reliability, maintainability and have their own limitations, difficult to meet the needs of new period of full service access. Under the current circumstances, to build an enterprise to meet the needs of the majority of enterprises, can carry a variety of business, management, easy maintenance of the enterprise access network has become a top priority of the operators.
Along with our country copper.
In the process of development, PON network has been widely accepted by operators in terms of bandwidth upgrade, service bearer and passive network maintenance. Recently, some of the world's leading operators began to apply GPON technology to enterprise access, making GPON become the star of enterprise access program technology. So in numerous technical and operator why choose to do in the new era of enterprise applications of GPON. Analysis of the industry think, in the enterprise access scenario, GPON technology and other access technologies compared with many advantages.

As an important partner of China Telecom Corp, HUAWEI Technology Co., Ltd. is not only an international well-known big company, but also a company responsible for the customer. Here, Huawei Technologies Co., Ltd. suggest China Telecom Group Company in the purchase of the project by Huawei Optix OSN 9500, Optix OSN 7500, Optix OSN 3500, Optix OSN 2500, and Optix OSN 2000, Optix 10g Metro 5000), Optix 2500 + (Metro 3000), Optix 155/622H (Metro 1000) equipment, Optix Metro 500, Optix Metro 100. With the telecom Jicai projects and Huawei equipment in telecommunication network application, the Huawei Company from the actual operations of the telecommunication company of, telecommunication transmission network in the fast scheduling considering the whole network, quick adjustment, rapid coverage, the end-to-end response to the needs of the rapid expansion of the, give full play to the same manufacturer SDH equipment and network management in ultra large scale networks end-to-end scheduling advantage, the maximum lifting telecommunication transmission network in the competitive advantage, and as far as possible to reduce business operating costs.

On the live network, NEs using software packages including the OptiX OSN 8800 T32 V100R007C00SPC100, V100R007C00SPC200, and V100R007C02SPC100 have risks during long-time operation. They need to be upgraded to mainstream maintenance versions according to version policies.
During the version upgrade, some 100G boards have risks and therefore spare boards must be prepared for them before the version upgrade.
The following lists the versions need to be upgraded:
OptiX OSN 8800 T32 V100R007C00SPC100 (ESS version)
OptiX OSN 8800 T32 V100R007C00SPC200 (ESS version)
OptiX OSN 8800 T32 V100R007C02SPC100 (TR5 version)
Trigger condition:
When NEs are using software packages including the OptiX OSN 8800 T32 V100R007C00SPC100, V100R007C00SPC200, and V100R007C02SPC100, they need to upgrade to the related GA versions or maintenance versions according to the upgrade paths listed.

The performance of synchronous digital network on the network can work normally is very important, the introduction of SDH network on network synchronization has put forward higher requirements. When the network working in normal mode, each network element synchronous to a reference clock, between network nodes and clock exists only phase difference does not appear the frequency difference, and therefore will only appear accidental pointer justification event (network synchronization, pointer adjustment not very often). When a network element node lost synchronous reference clock and enters a hold mode or modes of free oscillations, the element local node clock and clock network will the frequency difference, and lead to the continuation pointer adjustment, affect the business of network normal transmission.


More blog:
[url=http://www.thunder-link.com/support/U2000V100R006C02SPC301-Installation-Introduction_Part%201.html]U2000V100R006C02SPC301 Installation Introduction_Part 1[/url]

Description: OSN3500 System Control and Communication Board for Huawei OSN3500 OSN2500 OSN1500 OSN1800 OSN6800 OSN8800 Metro3000 Metro1000 PTN950 PTN910 system.
Part Number: 03026645
Version Description: The GSCC is available in several functional versions. The functions provided by the functional versions are different.

Application
The GSCC is the intelligent system control board. The GSCC works with the to manage the boards on the equipment and realize the communication between different pieces of equipment.
Valid Slots
The GSCC can be installed in slots 17 and 18 in the subrack. By default, slot 18 houses the active board and slot 17 houses the standby board.
Feature Code
The GSCC does not have the feature code.
Technical Specifications
The technical specifications of the GSCC include the mechanical specifications and power consumption.
Dimensions (width x depth x height):
25.4 (W) x 235.2 (D) x 261.4 (H)
Weight:1.0kg

Because of its Huawei OTN network based on wavelength division, is asynchronous, don't need to be synchronized between equipment and devices, of course, this is right, but that is not absolute.Now many otns equipment in addition to wavelength division and optical cross, cross, and electricity to put it bluntly, is in fact more than WDM so simple, is actually the Huawei MSTP (SDH) + IP + DXC + ODXC + WDM, the MSTP (SDH) has become a a piece of the board, its OTN equipment and MSTP is need to be synchronized, if with based on MSTP (SDH) this kind of boards, just need to configure the clock, and configure the clock way transmission between the site (wavelength can be in business with transfer conditions, can also be in OTN management wavelength OSC. For for wavelength conversion interface card only, do not need to configure the clock.