EchoLife ONT series Smart Connected / Intelligent O&M / Intelligent power-saving

EchoLife Optical Network Terminal (ONT) series products are home-side devices in Huawei's FTTH
solutions, supporting ultra-bandwidth access using GPON technologies for home or Small Office/
Home Office (SOHO) users. EchoLife ONT series products provide POTS ports and Ethernet ports that support the Fast Ethernet (FE)/Gigabit Ethernet (GE) auto-sensing function. With strong forwarding capability, these ports ensure user experience in voice, data, and High-Definition (HD) video services, facilitate ideal terminal solutions for FTTH deployment, and support future-oriented services. Huawei EchoLife ONT series products are categorized into Intelligent bridging, bridging + voice, and gateway ONTs.

Application Scenarios

Highlight

•• Plug-and-play (PnP): Internet, IPTV and VoIP services can be deployed by one click on the NMSand on-site configuration is not required.
•• Remote diagnosis: Remote fault locating is implemented by the loop-line test of POTS ports, callemulation and PPPoE dialup
emulation initiated by the NMS.
•• Link monitoring: E2E link detection is achieved using 802.1ag Ethernet OAM.
•• High speed forwarding: GE line rate forwarding in the bridge scenario and 900 Mbit/s forwarding in the NAT scenario.
•• Green energy-saving: 25% power consumption is saved with highly integrated system on chipset(SOC) solution, in which, a
single chip integrates with PON, voice, gateway and LSW modules.

Intelligent Bridging ONTs
Bridging ONTs provide only the Layer 2 forwarding function and support few port types, featuring simple service modes. Typical bridging ONTs are HG8010H\HG8040F.

Bridging + Voice ONTs
Compared with bridging ONTs, bridging + voice ONTs are added with POTS ports, supporting voice functions. Typical bridging + voice ONTs are HG8240H and HG8242H.

Gateway ONTs'
In the downstream direction, gateway ONTs connect to various terminals using multiple LAN-side ports, providing triple-play services. Multiple Ethernet ports can be connected to personal computers, Set Top Boxes (STBs), or video phones. Telephone ports can be connected to phones or fax machines and Wi-Fi provides connection to a high-speed wireless network. Typical gateway ONTs are HG8245H, HG8247H, and HG8045A.

Do you know how to configure GPON FTTH Layer 2 Internet Access Service on the NMS?

Services can be configured for an Huawei ONT HG8245H only after the ONT is successfully added to an OLT.

Networking

• The PC gains access to the Internet in PPPoE dialup mode.
• The ONT is connected to the GPBC card of the OLT through an optical fiber.
• The broadband remote access server (BRAS) provides broadband user access and functions of authentication and accounting.

Configuring the GPON FTTH Internet service 

Procedure

 NOTE:

After all profiles are configured, perform the following steps to issue them to the device:

• In the information list, right-click the record and choose Download to NE from the shortcut menu.
• In the dialog box that is displayed, select the required NE(s), and click OK.

1, Configure a DBA profile.

2, Configure a line profile.

In a line profile, a GEM port can be bound to up to eight service streams. In a GEM port, different GEM connections need to be set up for different service streams.

In this example, the mapping between GEM ports and ONT-side services is implemented through VLANs, and the service streams of each service are mapped to GEM port 14. In addition, different GEM connections are set up for the management VLAN and the VLANs for the Internet, voice, and multicast services.

3, Configure a service profile.

Set the port capability set to adaptive. Then, the system adapts the port capability set of an online ONT to its actual capability. Then, in the ONT service profile, configure a VLAN translation policy to translate C-VLAN 1001 to VLAN 100.

4, Configure an MEF IP traffic profile.

The profile name is ftth_hsi, CIR is 4 Mbit/s, and the priority is 0. Traffic is scheduled based on the priority specified in the profile.

5, Configure a service VLAN on the OLT MA5600T side.

The prerequisite for performing operations in the navigation tree is to navigate to the NE Explorer of the OLT. To navigate to the NE Explorer of the OLT, do as follows: In the Main Topology, double-click the required OLT in the Physical Root navigation tree; or right-click the required OLT and choose NE Explorer from the shortcut menu.

A service VLAN is the VLAN used for the Internet service.

Provision services.

The prerequisite for performing operations in the navigation tree is to navigate to the NE Explorer of the OLT. To navigate to the NE Explorer of the OLT, do as follows: In the Main Topology, double-click the required OLT in the Physical Root navigation tree; or right-click the required OLT and choose NE Explorer from the shortcut menu.

1. Add an ONT.
   The ONT connects to the GPON port 0/1/0 is ONT 1. The serial number of the ONT is 32303131D659FD40, password is 0100000001, discovery mode for password authentication is once-on, management mode is OMCI, bound ONT line profile name is ftth, and the ONT service profile name is ftth.
2. Configure an ETH port of Huawei GPON ONU.
3. Add a service virtual port on the OLT side.

Result

Check whether the user successfully gains access to the Internet through dialup on the PC.

1. The LAN1 port of the ONT is connected to the Ethernet port of the PC properly.
2. Dial up on the PC using the PPPoE dialup software.
3. The user gains access to the Internet on the PC after the dialup is successful.

How to Powering on Huawei S2700&S3700&S5700&S6700 Switch for the First Time?

When you get a new Huawei S2700&S3700&S5700&S6700, do you know how to power it on in the correct way?

Tools and Accessories

• ESD wrist strap or ESD gloves
• Multimeter
• Console cable

Procedure

Step 1 Perform the following checks before powering on a switch:

1. Use a multimeter to check that there is no short-circuit condition between the phase wire

(live wire), earth wire, and neutral wire in each power outlet.

2. Use the multimeter to check that the input voltage provided by the external power supply

system is within the operating voltage range for the switch. For the operating voltage

range.

3. Check that the power switches of the external power supply system and the switch or the

power module are both turned off.

4. Check that the power cables are correctly connected.

Step 2 Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in

close contact with your wrist and grounded properly.

Step 3 Connect the DB-9 connector of the console cable to the 9-pin serial port on a maintenance

terminal. Then, connect the RJ45 connector of the console cable to the console port on the

switch.

Console cable connection

NOTE

After connecting both ends of the console cable, power on the switch. During the startup sequence of the switch, you can choose whether to enter the BootROM menu. The BootROM menu and the

procedure to enter it vary depending on software versions. For details, see the upgrade guide for the

switch and software version in use.

If a switch has a mini USB port, you can also use a mini USB cable to connect the switch to a

maintenance terminal

Step 4 Turn on the external power supply system connected to the switch.

Step 5 Turn on the power switch on the switch or power module.

Step 6 After the switch completes its startup sequence, check the indicators on the switch and power

modules.

Follow-up Procedure

To power off Huawei Switch like S5720-50X-EI-46S-AC, perform the following steps:

1. Turn off the power switch on the switch or power module.

2. Turn off the external power supply system connected to the switch.

3. Check that the switch and all its modules are powered off. (All indicators are off.)

Function Module and Access Service Flow of Huawei MA5600T/MA5603T/MA5608T

The supports function modules such as service interface modules, Ethernet switching module, and service control module, and supports the xDSL, xPON, and POTS access services.

Overview

The mainly consists of service interface modules, core processing modules, and upstream interface modules, as shown in Figure 1.

Figure 1 Functional architecture of Huawei MA5600T/MA5603T/MA5608T 

Service Interface Modules

The service interface modules provide various ports for the direct access of multiple services. The service interface modules include the following:

• 10G GPON and GPON interface module: comprised by optical module (It receives and transmits optical signals, and converts between optical and electrical signals.), GMAC module (It implements encapsulation and decapsulation of GPON protocol frames.), Layer 2 forwarding module (It implements the Ethernet Layer 2 forwarding and QoS.), CPU (It implements the boards management and service control.), power module (It supplies power to other function modules of the board.) and Clock module (It provides the working clock for various function modules of the board.) to provide the 10G GPON or GPON access. Corresponding to the 10G GPON board and GPON board.
• P2P access module: comprised by optical interface module, Layer 2 forwarding module, CPU, power module, and clock module to provide the P2P access. Corresponding to the OPGD board
• POTS interface module: comprised by the interface module, PCM signal processing module (It converts PCM data into IP voice packets, and implements functions such as encoding/decoding and echo cancellation.), Layer 2 forwarding module, CPU, power module, and clock module to provide POTS access. Corresponding to xDSL over POTS board and some of the voice board, for example ASPB board and VDPD board.
• ISDN interface module: comprised by the interface module, service processing module(It used to processes the ISDN service of the board, including extracting signaling and switching data.), CPU, power module, and clock module to provide ISDN access. Corresponding to some of voice board and xDSL over ISDN board, for example DSRD and VDQM boards.
• GE interface module: comprised by the interface module, CPU, switching module, power module, and clock module to provide upstream transmission and cascading. Corresponding to the ETHB and SPUA boards.
• xDSL interface module: comprised by the interface module, Layer 2 forwarding module, CPU, power module, and clock module to provide xDSL access. Corresponding to the ADSL, VDSL, and SHDSL boards

Different interface modules have different service boards. For details about working principle of an interface module, see the description of the corresponding service board in the Hardware Description.

This section describes the flows of various of access services.

• Service flows passing the Ethernet switching module and then the upstream interface module for upstream transmission, including GPON service flow (GE/10GE upstream), P2P service flow (Ethernet upstream), xDSL service flow (GE/10GE upstream), Converting the native TDM service into E1/STM-1 service flow (E1/STM-1 upstream). Converting the native TDM service into E1/STM-1 service is the native TDM service that is transmitted through GPON is converted by the MA5600T/MA5603T/MA5608T. The device terminates the native TDM service, and transmits the service to the network-side device through E1/STM-1.
• Service flows passing the Ethernet switching module, related service processing modules, and then the Ethernet switching module for upstream transmission. Such service flows convert the native TDM service into SAToP service and POTS service that use GE/10GE for upstream transmission. In this service flow, the native TDM service that is transmitted through GPON is converted by the MA5600T/MA5603T/MA5608T. The device encapsulates the native TDM service into PWE3 service. Therefore, this service flow is also called converting the native TDM service into TDM PWE3 service. The purpose of this service flow is to ensure the emulation transmission of the TDM service.

Do you know how the Slots DistributionHuawei on Huawei OptiX OSN 6800 Subrack

Subracks are the basic working units of Huawei OptiX OSN 6800. The subrack of the OptiX OSN 6800 has an independent power supply.

1. Indicator and interface area
2. Board area
3. Fiber cabling area
4. Fan tray assembly
5. Air filter
6. Fiber spool
7. Mounting ear

• Indicators: indicate the running status and alarm status of the subrack.
• Board area: All service boards are installed in this area. 21 slots are available.
• Fiber cabling area: Fiber jumpers from the ports on the front panel of each board are routed to the fiber cabling area before being routed on a side of the open rack. The mechanical VOA is also installed in this area.
• Fan tray assembly: Fan tray assembly contains ten fans that provide ventilation and heat dissipation for the subrack.
• Air filter: The air filter protects the subrack from dust in the air and requires periodic cleaning.
• Fiber spool: Rotable fiber spools are on two sides of the subrack. Extra fibers are coiled in the fiber spool on the open rack side before being routed to another subrack.
• Mounting ears: The mounting ears attach the subrack in the cabinet.
• Interface area: The interface area provides functional interfaces, such as management interface, inter-subrack communication interface, alarm output and cascading interface, alarm input and output interface. It is behind the subrack indicator panel.

Slot Description

The board area of the subrack has 21 slots, labeled IU1 to IU21 from left to right.

• houses service boards and supports service cross-connections.
• IU15 and IU16 are also available for the STG. IU9 IU10 is the cross-connect slots.
• Pair slots refer to a pair of slots whose resident boards' overhead can be processed by the buses on the backplanes. OptiX OSN 6800 supports pair slots.
  • At a site where OSC signals pass through, two OSC boards must be configured in paired slots.
  • When line boards or OTU boards function as regeneration boards, ESC signals need to pass through the boards. In this scenario, the two line boards or OTU boards must be configured in paired slots.
  • Paired slots among slots IU1 to IU8 and IU11 to IU16 support distributed service grooming.

What are the Highlights of Huawei SmartAX MA5600T/MA5603T/MA5608T Product (2)

Aggregation Management for Remote Sites

Huawei OLT supports aggregation management and plug-and-play for remote sites. This eliminates the needs of onsite software commissioning and OSS system integration, which simplifies device management.
The management of remote devices is concentrated on the OLT through the GE aggregation. In this way, the service configuration, software upgrade, and maintenance for remote sites can be implemented using the OLT, which greatly reduces the management complexity of an FTTx network.

Seamless Migration for PSTN Networks

The MA5600T/MA5603T/MA5608T provides access for various traditional services, enabling a PSTN network seamlessly evolve to an IP network.

Smooth Evolution from GPON to 10G GPON

By adding the WDM1r component, the MA5600T/MA5603T can be smoothly upgraded from GPON to 10G GPON.
Carriers can newly construct a 10G GPON network or upgrade a GPON network to a 10G GPON network. Specifically, the WDM1r component is added to the OLT so that GPON and 10G GPON signals can be transmitted over the same ODN in the multiplexing mode.

What are the Highlights of Huawei SmartAX MA5600T/MA5603T/MA5608T Product (1)

HetAN

Huawei MA5600T/MA5603T/MA5608T serves as the CO OLT and supports multiple network construction modes and diversified access media to provide access for home users, mobile users, and enterprise users. Such a heterogeneous access network (HetAN) wins popularity

-User access: provides access for home users, mobile users, and enterprise users.
-Network construction mode: supports FTTH, FTTB, FTTC, FTTW, FTTO, and FTTD networks.
-Access media: supports copper, fiber, cable, power line, and Wi-Fi access.

All in One

The integrated fiber-copper access platform and the access-aggregation integration capability of the MA5600T/MA5603T/MA5608T effectively ensure the smooth evolution of the access network.

What is the Service Mapping of Huawei OSN8800 Equipment?

Mapping Client Services into ODUk Signals

This section describes how the OptiX OSN 8800 maps services into ODUk signals. WDM equipment uses standard mapping procedures or timeslots to map signals into ODUk signals.

• When using the standard mapping procedures, Huawei OptiX OSN 8800 directly maps signals into ODUk signals and supports flexible grooming of services.
• When using timeslots, the WDM equipment can aggregate multiple services at rates lower than 1.25 Gbit/s into one ODU0 signal, or multiple services at rates lower than 2.5 Gbit/s into one ODU1 signal. This function enables multiple services to share the same ODU0 or ODU1 bandwidth.

Mapping Client Services Using Standard Mapping Procedures

The OptiX OSN 8800 can map client services without using timeslots. It can use standard mapping procedures to map client services directly into ODUk signals, as shown in Figure 1.

Figure 1 Mapping client services into ODUk 

Mapping Client Services Using Timeslots

The OptiX OSN 8800 divides an ODUk (k = 0, 1) signal into several timeslots, each with a bandwidth of 155 Mbit/s. It slices client services into 155 Mbit/s signal segments, each mapped into ODUk signals. The OptiX OSN 8800 can map multiple low-rate client services into one ODUk (k = 0, 1) signal, thereby improving bandwidth utilization.

The services that can be mapped into one ODU0 by OptiX OSN 8800 using timeslots include the following: FE, FDDI, ESCON, SDI, DVB-ASI, FC100, and FICON. Figure 2 shows how FE/FDDI and ESCON/SDI/DVB-ASI services are aggregated into one ODU0.

Figure 2 Aggregating client services into one ODU0 

The services that can be mapped into one ODU1 by the OptiX OSN 8800 using timeslots include the following: FE, FDDI, STM-1, OC-3, ESCON, SDI, DVB-ASI, STM-4, OC-12, FC100, FICON, GE, HD-SDI, FC200, and FICON Express.Figure 3 shows how GE, STM-1/OC-3, and FC100 services are aggregated into one ODU1.

Figure 3 Aggregating client services into one ODU1 

Multiplexing and Mapping ODUk Signals into OTUk Signals

This section describes the structure that the OptiX OSN 8800 uses to multiplex board TN12M4001

 and map ODUk signals into OTUk signals. After the E/O conversion, the signals are sent to the WDM side.

The OptiX OSN 8800 can multiplex and map client signals into ODUk (k= 0, 1, 2, 2e, 3, 3e, 4, flex) signals and produce OTUk (k=1, 2, 2e, 3, 3e, 4) signals on the WDM side for line transmission. Figure 1 shows the ODUk multiplexing and mapping structure that the OptiX OSN 8800 supports.

Figure 1 Multiplexing and mapping ODUk signals into OTUk signals (OptiX OSN 8800) 

Hardware Information of Huawei S5700 Series Ethernet Switches

Hardware modules of Huawei S5700 refer to the interface card, SCU (Switch Control Unit), power
supply, and fan.

Logical structure of hardware modules

SCU
The SCU is fixed on the S5700 like S5700-28C-EI-24S. Each S5700 has one SCU.
The SCU is responsible for packet switching and device management. It integrates multiple
functional modules, namely, the main control module, switching module, and interface
module.
Main Control Module
The main control module implements the following functions:
Processing protocols
Functioning as an agent of the user to manage the system and monitor the system
performance according to instructions of the user, and report the running status of the
device to the user
Monitoring and maintaining the interface module and switching module on the SCU
Switching Module
The switching module, also called the switching fabric, is responsible for packet exchange,
multicast replication, QoS scheduling, and access control on the interface module of the SCU.
The switching module adopts high performance chips to implement line-speed forwarding and
fast switching of data with different priorities.
Interface Module
The interface module provides Ethernet interfaces for accessing Ethernet services.
Cards
The S5700 supports service and stack cards. Service cards allow flexible networking and
provide cost-effective and customized solutions. Stack cards connect multiple switches into
one logical switch, which implements on-demand expansion, reduces investments, simplifies
management, and improves network reliability.

Huawei OSN3500 Introduction

Positioning

Huawei OptiX OSN 3500 intelligent optical transmission system (the OptiX OSN 3500 for short) developed by Huawei is the next-generation intelligent optical transmission equipment.

Huawei OptiX OSN 3500 is of a "universal switch" architecture. That is, the OptiX OSN 3500 can be used in packet mode or in TDM mode. When used with the other equipment of Huawei, the OptiX OSN 3500 supports various networking applications, such as the pure packet mode application, hybrid networking application (overlay networking of the packet mode and TDM mode), and pure TDM mode application. By using a proper networking solution, the data service and conventional SDH service can be processed in the optimal manner.

Technology

The OptiX OSN 3500 transmits voice and data services on the same platform with high efficiency. It integrates the following technologies:

• In packet mode, the OptiX OSN 3500 supports the following technologies:
  • Multiprotocol Label Switching (MPLS)
  • Multiprotocol Label Switching Transport Profile (MPLS-TP)
  • Pseudo Wire Edge to Edge Emulation (ETH PWE3)
  • TDM PWE3
  • ATM PWE3
• In TDM mode, the OptiX OSN 3500 supports the following technologies:
  • Synchronous digital hierarchy (SDH)
  • Plesiochronous digital hierarchy (PDH)
  • Ethernet
  • Asynchronous transfer mode (ATM)
  • Storage area network (SAN)/Video
  • Wavelength division multiplexing (WDM)
  • Digital data network (DDN)
  • Pulse Code Modulation (PCM)

Exterior of the OptiX OSN 3500 

Network Application

As shown in Figure, the OptiX OSN 3500 is mainly used at the convergence layer and backbone layer of the metropolitan area network (MAN). The network application scenarios are described as follows:

• In TDM networking, can be networked with the other OptiX transmission equipment (the OptiX OSN 9560, OptiX OSN 9500, OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 3500 II, OptiX OSN 2500, OptiX OSN 1500, OptiX OSN 500, and OptiX OSN 550) to optimize the carrier's investment.
• With the packet switching technology, can constitute a packet data transmission network with the other OptiX transmission equipment (the OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 1500, OptiX OSN 500, OptiX OSN 550, OptiX PTN 910, OptiX PTN 950, OptiX PTN 1900, OptiX PTN 3900, and OptiX RTN 900) to meet the requirement for bearing IP services.
• Can be flexibly networked with WDM equipment and Huawei Metro equipment.
• Can transparently transmit services over third-party Layer 2 networks, allowing end-to-end configuration and management.

How to Measure the Transmit Optical Power of an Huawei OLT PON Port?

Check whether the optical module on a PON port of the OLT works properly by measuring the transmit optical power.

Prerequisites

• The OLT is powered on.
• The PON board is in the normal state.
• The PON port is enabled.

Tools, Meters and Materials

• Single-mode fiber jumper with the SC/PC connector. No longer than 1 m. Best to use new jumper.
• Burst optical power meter or ordinary optical power meter.

Impact on the System
When the transmit optical power of a PON port on Huawei OLT is measured, the PON port will fail to transmit any service.

Precautions
Before or after measuring the optical power, you need to clean the connector of the optical fiber. This is because if a contaminated optical fiber is connected to a normal optical fiber connector, the connector will be contaminated, which leads to abnormal attenuation and reflection and thus affecting optical path quality.

Procedure
Step 1 Configuring the measure parameters of the optical power meter.
Unit of optical power: dBm
Wavelength: 1490 nm
Step 2 Connect the optical power meter directly to the optical module on the OLT PON port using optical fiber jumper, as shown in Figure The value on the optical power meter is the transmit optical power of Huawei OLT MA5800 PON port.

• If the value on the optical power meter changes within a range of 0.2 dBm, take the average value.
• If the value on the optical power meter changes in a range wider than 0.2 dBm, then it is possible that the fiber is not properly connected, the fiber is excessively bent, or the fiber connector has dust.
• Do not bend the fiber. A bent fiber may affect the test result.

Step 3 Compare the test result with the optical module parameters of the corresponding board in the hardware description.

Huawei S6720S-26Q-EI-24S-AC switch Power Supply Configuration

Power Supply Configuration of S6720S-26Q-EI-24S-AC

An Huawei S6720S-EI switch can have one or two power modules installed.

When a switch has two power modules installed, the two power modules work in 1+1 redundancy mode. AC and DC power modules can be used together in the same switch.

Figure 1 shows the power supply connections of dual DC power modules. After DC power is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.

Power supply connections of dual DC power modules 

Figure 2 shows the power supply connections of dual non-PoE AC power modules. After AC power is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.

Power supply connections of dual non-PoE 170 W AC power module.

What is the Protection Relationship among Huawei OSN Products?

TPS protection relationship of all Huawei OSN products is listed as follows:

Huawei OSN 7500:

E1/T1: A maximum of one group of 1:4 protection. Slot 1 protects Slots 2, 3, 7 and 18.

E3/D3/E4/STM-1e: A maximum of one group of 1:3 protection. Slot 18 protects Slots 2, 3 and 7. 

Huawei OSN 3500:

E1/T1: A maximum of one group of 1:8 protection. Slot 1 protects Slots 2–5, 13–16.

E3/D3/E4/STM-1e: A maximum of two groups of 1:3 protection. Slot 2 protects Slots 3, 4 and 5. Slot 16 protects Slots 13, 14 and 15. A maximum of two groups of 1:1 protection. Slot 2 protects Slot 3 and Slot 16 protects Slot 15.

Huawei OSN 2500:

E1/T: If slots are not split, there is a maximum of one group of 1:4 protection. Slot 5 protects Slots 6, 7, 12 and 13. If Slots 5, 6 and 7 are split, there are a maximum of two groups of 1:2 protection. Slot 5 protects Slots 6 and 7. Slot 19 protects Slots 20 and 21.

E3/D3/E4/STM-1e: A maximum of two groups of 1:1 protection. Slot 6 protects Slot 7, and Slot 13 protects Slot 12.

Huawei OSN 2500CRG:

The OSN2500CRG does not support TPS protection.

Huawei OSN 1500I:

E1/T1: If slots are not split, there is a maximum of one group of 1:2 protection. Slot 11 protects Slots 12 and 13. If Slots 11, 12 and 13 are split, there is a maximum of one group of 1:2 protection. Slot 1 protects Slots 2 and 3, Slots 6 protects Slots 7 and 8, and Slot 11 protects Slots 12 and 13.

E3/D3/E4/STM-1e: A maximum of two groups of 1:1 protection. Slot 12 protects Slot 13.

Huawei OSN 1500II:

E1/T1: If slots are split, there is a maximum of one group of 1:1 protection. Slot 2 protects Slot 12. 

What Is the Relationship Between the LOF and LOS Alarms?

How to detect LOF and LOS alarms and what is the relationship between these two alarms? What alarm is generated if optical fibers are removed when Huawei MA5606T or MA5652G serves as an Huawei ONU?

LOF indicates loss of frame. When such an alarm is generated, the ONU can receive optical signals. LOS indicates loss of signal. When such an alarm is generated, the ONU fails to receive optical signals. The mechanisms of detecting LOFi and LOSi alarms are as follows:

• LOFi: If four consecutive frames of an OLT fail to locate an upstream frame of an ONU, the LOFi alarm is generated and the ONU goes offline.
• LOSi: If four consecutive frames of Huawei OLT fail to receive an upstream optical signal of an ONU, the LOFi alarm is generated and the ONU goes offline.

The relationship between the LOF and LOS alarms is as follows:

• Use an optical attenuator to test the ATM 155/622 Mbit/s optical port and increase the attenuation gradually. It is found that the alarm status changes as follows: normal -> SD -> LOF -> LOS. This indicates that after LOF is generated, if the attenuation is increased further, no optical signal is received and LOS is generated. If an optical fiber is removed, LOF may be generated first and then LOS, which is related to the alarm detection mechanism. The LOSi, LOFi, and LCDGi alarms are detected in the time window mode. In the first several detections, if the time window detects the threshold for frame losing, the LOFi alarm will be generated.
• If the PON line generates an LOF alarm, LOS will not be generated. This is because the PON port uses the time division system. If an LOF alarm is generated, the ONT goes offline and then the OLT like MA5603T does not assign the timeslot (bandwidth) to the ONU. Therefore, the OLT does not detect whether the ONT transmits upstream optical signals and an LOS alarm is not generated.
• If LOS is generated, LOF/SD will be suppressed. This is because LOS is the alarm of the highest severity.

When the MA5606T and MA5652G serve as an ONU and the optical patch is normal, LOS is generated when an optical fiber is removed.

How to Operate MAC Address Table Configuration?

How to Configure MAC Address Table on Huawei S2300 and S3300 Switch

Networking Requirements
As shown in Figure, the MAC address of the user host PC1 is 0002-0002-0002 and that
of the user host PC2 is 0003-0003-0003. PC1 and PC2 are connected to the Switch through the
LSW. The LSW is connected to Eth0/0/1 of the Switch, which belongs to VLAN 2. The MAC
address of the server is 0004-0004-0004. The server is connected to Eth0/0/2 of the Switch.
Eth0/0/2 belongs to VLAN 2.

• To prevent hackers from using MAC addresses to attack the network, configure two static MAC address entries for each user host on the Switch.
• To prevent hackers from stealing user information by forging the MAC address of the server, configure a static MAC address entry on the Switch for the server.

Configuration Roadmap
The configuration roadmap is as follows:
1. Create a VLAN and add an interface to the VLAN to implement Layer 2 forwarding.
2. Configure static MAC address entries to prevent MAC address attacks.
3. Configure the aging time of dynamic MAC address entries to update the entries.

Procedure
Step 1 Configure static MAC address entries.
# Create VLAN 2 and add Ethernet0/0/1 and Ethernet0/0/2 to VLAN 2.
<Switch> system-view
[Switch] vlan 2
[Switch-vlan2] quit
[Switch] interface ethernet 0/0/1
[Switch-Ethernet0/0/1] port hybrid pvid vlan 2
[Switch-Ethernet0/0/1] port hybrid untagged vlan 2
[Switch-Ethernet0/0/1] quit
[Switch] interface ethernet 0/0/2
[Switch-Ethernet0/0/2] port hybrid pvid vlan 2
[Switch-Ethernet0/0/2] port hybrid untagged vlan 2
[Switch-Ethernet0/0/2] quit
# Configure a static MAC address entry.
[Switch] mac-address static 2-2-2 Ethernet 0/0/1 vlan 2
[Switch] mac-address static 3-3-3 Ethernet 0/0/1 vlan 2
[Switch] mac-address static 4-4-4 Ethernet 0/0/2 vlan 2
Step 2 Set the aging time of a dynamic MAC address entry.
[Switch] mac-address aging-time 500
Step 3 Verify the configuration.
# Run the display mac-address command in any view to check whether the static MAC address
entries are successfully added to the MAC address table.
[Switch] display mac-address static vlan 2
-------------------------------------------------------------------------------
MAC Address VLAN/VSI Learned-From Type
-------------------------------------------------------------------------------
0002-0002-0002 2/- Eth0/0/1 static
0003-0003-0003 2/- Eth0/0/1 static
0004-0004-0004 2/- Eth0/0/2 static
-------------------------------------------------------------------------------
Total items displayed = 3
# Run the display mac-address aging-time command in any view to check whether the aging
time of dynamic entries is set successfully.
[Switch] display mac-address aging-time

Aging time: 500 seconds

More Related:

S2318TP-EI-DC

Huawei Low-end Switches Upgrade The APP System

The S5700 four series description

Configuring a Device to Communicate with an NM Station

Do you know how to Replace a Power Module or Fan Module?

Some switch models support pluggable power modules and fan modules. Figure shows
the fan module slots and power module slots on Huawei S6700-EI switch as an example.

Before replacing a power module, ensure that the switch is powered by the other power
module. Replacing the only power module of a switch will interrupt services.
If two power modules are installed in a switch, they work in 1+1 backup mode. Replacing
one power module will not interrupt services. If you are replacing both power modules,
replace the second one only after the first replaced one is working (its indicator is steady
green).

Tools and Accessories
ESD wrist strap or ESD gloves
Phillips screwdriver
Procedure
Step 1 Wear an ESD wrist strap or ESD gloves. When wearing an ESD wrist strap, ensure that it is in
close contact with your wrist and grounded properly.
Step 2 Turn off the power module.
Step 3 Remove the power cable from the power module. The procedure for removing a power cable
is the reverse of the procedure for installing the power cable.
Step 4 Remove the power module from the Huawei switch.
1. Use a Phillips screwdriver to loosen the captive screw on the power module.
2. Holding the handle, gently pull out the power module.

Step 5 Install the replacement power module in the switch.

Step 6 Connect the power cable to the new power module.

Step 7 Turn on the power module.
Step 8 Use either of the following methods to check whether the new power module is working
normally:
Observe the STATUS indicator on the panel. If the indicator is steady green, the power
module works normally.
Run the display device command to check the running status of the new power module.

Follow-up Procedure
If the new power module does not work normally, contact the equipment supplier or local
maintenance personnel for technical support.

Huawei S1720&S2700&S3700&S5700&S6700 Switch VLAN Termination and Voice VLAN

VLAN Termination
Involved Network Elements
Other network elements are not required.

License Support
VLAN termination, that is, QinQ and Dot1q on a sub-interface, is a basic feature of a switch
and is not under license control.

Feature Dependencies and Limitations

• Termination sub-interfaces cannot be configured on an Eth-Trunk member interface. 
• You are advised to add member interfaces to an Eth-Trunk and configure termination sub-interfaces on the Eth-Trunk in sequence. Termination sub-interfaces can be configured successfully on an Eth-Trunk only when the device where member interfaces reside support termination sub-interfaces.
• The VLAN IDs terminated by a sub-interface cannot be created in the system view or be displayed using a display command.
• When VLAN IDs terminated by a sub-interface are used for Layer 3 forwarding, only the first VLAN takes effect even if multiple inner VLAN IDs are specified.
• VLAN termination sub-interfaces cannot be created on a VCMP client.
• The VLAN terminated by a sub-interface cannot be configured as a super-VLAN or sub VLAN.
• If the PW-side interface is a Layer 3 interface switched by the undo portswitch command, the AC-side interface cannot be a subinterface belonging to a Layer 3 interface; otherwise, traffic forwarding is abnormal. This rule applies to Huawei S6720-EI, S6720S-EI and S5720EI.

Voice VLAN

Involved Network Elements

Other network elements are not required.

License Support

The voice VLAN can be available only after the S1720GW, S1720GWR, S1720GW-E, and

S1720GWR-E have the license loaded. The S1720GW-E and S1720GWR-E have the preconfigured

license before delivery. CFM is available on other models without loading the license.

Feature Dependencies and Limitations

• VLAN 1 cannot be configured as a voice VLAN.
• To transmit different services, ensure that the voice VLAN and default VLAN on an interface are different VLANs.
• Only one VLAN on an interface can be configured as a voice VLAN at a time.
• After a voice VLAN is configured on an interface, VLAN mapping, VLAN stacking, or traffic policies cannot be configured on the interface.
• Do not set the VLAN ID to 0 on an IP phone.
• The S5720-HI do not support the automatic mode.
• In auto mode, access, negotiation-auto, or negotiation-desirable interfaces cannot be added to a voice VLAN. To add the interface to the voice VLAN, run the port link-type command to change the link type of the interface to trunk or hybrid.
• In V200R003 and later versions, the automatic mode takes effect only when the voicevlan remark-mode mac-address command is configured to increase the priority of voice packets based on MAC addresses and the voice-vlan enable command without include-untagged specified is configured to enable voice VLAN on the interface.
• When the remark (user group view) and voice-vlan remark commands are used together to modify the user packet priority in V200R008, if the services conflict:

– For S5720HI, the priority configured using the remark (user group view)

command takes effect.

– For S5720-EI and S6720EI, the priority configured using the voice-vlan remark

command takes effect.

How to Configure a General ONT VAS Profile?

After configuring a general ONT VAS profile and binding it to an ONT successfully, you can activate the ONT and directly apply the value-added service defined by the profile to the subscribers of the ONT. Each ONT can be bound to only one general ONT VAS profile.

Context

An ONT general VAS profile can incorporate multiple ONT VAS profiles for different ONT types and software versions and therefore can be referenced by those types and versions of ONTs.

An ONT HG8245H for example of V100R003 or a later version can be bound to a general ONT VAS profile only.

If an .xml file containing service configuration data already exists, right-click, and choose Add (Import File) to configure a new general ONT VAS profile.

Procedure

1.    Choose Configuration > Access Profile Management (traditional style) from the main menu or select Fix-Network NE Configuration in Application Centerand choose Access Service > Access Profile Management (application style) from the main menu.

2.    In the dialog box that is displayed, choose PON Profile > ONT VAS Profile from the navigation tree.

3.    Click the General ONT VAS Profile tab.

4.    In the information list, right-click and choose Add from the shortcut menu.

5.    In the dialog box that is displayed, set the required parameters.

6.    Click Next.

7.    In the dialog box that is displayed, set user-defined parameters for Huawei ONTs of different software versions.

Result

On the Terminal Reference tab, you can query all ONTs that are bound to this ONT VAS profile.

Follow-up Procedure

To bind an ONT to a new general ONT VAS profile, right-click, and choose Bind Other General VAS Profile from the shortcut menu