Hybrid 10G GPON and GPON Network

Description

A hybrid 10G GPON and GPON network contains 10G GPON and GPON NEs. These 10G GPON and GPON NEs share an ODN.

Network Diagram

fig_feature_fttx_011502

On a hybrid 10G GPON and GPON network, an OLT uses 10G GPON and GPON boards to receive services. 10G GPON and GPON NEs share an ODN but use different service wavelengths. Therefore, a passive wavelength multiplexing device (WDM1r) is required.

Characteristics

  • Advantage: A GPON network is smoothly migrated to a 10G GPON network and the two networks share an ODN.
  • Disadvantages:
    • A WDM1r device is required on the ODN to multiplex wavelengths. This operation requires reconstruction for existing ODN networks and optical fiber connections, which interrupts services.
    • Various types of NEs (Huawei 10G GPON and Huawei GPON devices) are involved, and the maintenance is complicated.
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Pure 10G GPON Network

Description

A pure 10G GPON network contains only 10G GPON devices, including 10G GPON service board, 10G GPON optical network units (ONUs), and an optical distribution network (ODN). This scenario applies to a new 10G GPON FTTB or FTTC network. FTTB is the acronym for fiber to the building and FTTC is the acronym for fiber to the curb.

fig_feature_fttx_011501

Characteristics

  • Advantage: Only one type of network element (NE) (Huawei 10G GPON devices) is involved, and the maintenance is easy.
  • Disadvantage: A new ODN is required.

GPON Networking Applications

GPON is a passive optical transmission technology that applies in FTTx solutions, including fiber to the building (FTTB), fiber to the curb (FTTC), fiber to the door (FTTD), fiber to the home (FTTH), fiber to the mobile base station (FTTM), fiber to the office (FTTO), and fiber to the WLAN (FTTW), for voice, data, video, private line access, and base station access services. Figure 1 shows FTTx networking applications.

fig_feature_204301

The FTTx network applications in GPON access have the following in common: The data, voice, and video signals of terminal users are sent to ONUs, where the signals are converted into Ethernet packets and then transmitted over optical fibers to the OLT using the GPON uplink ports on the ONUs. Then, the Ethernet packets are forwarded to the upper-layer IP network using the uplink port on the OLT.

  • FTTB/FTTC: The OLT is connected to ONUs in corridors (FTTB) or by the curb (FTTC) using an optical distribution network (ODN). The ONUs are then connected to user terminals using xDSL. FTTB/FTTC is applicable to densely-populated residential communities or office buildings. In this scenario, FTTB/FTTC provides services of certain bandwidth for common users.
  • FTTD: uses existing access media at user homes to resolve drop fiber issues in FTTH scenarios.
  • FTTH: The OLT connects to ONTs at user homes using an ODN network. FTTH is applicable to new apartments or villas in loose distribution. In this scenario, FTTH provides services of higher bandwidth for high-end users.
  • FTTM: The OLT is connected to ONUs using an ODN network. The ONUs are then connected to wireless base stations using E1. The OLT connects wireless base stations to the core IP bearer network using optical access technologies. This implementation mode is not only simpler than traditional SDH/ATM private line technologies, but also drives down the costs of base station backhaul. FTTM is applicable to reconstruction and capacity expansion of mobile bearer networks. In this scenario, FTTM converges the fixed network and the mobile network on the bearer plane.
  • FTTO: The OLT is connected to enterprise ONUs using an ODN network. The ONUs are connected to user terminals using FE, POTS, or Wi-Fi. QinQ VLAN encapsulation is implemented on the ONUs and the OLT. In this way, transparent and secure data channels can be set up between the enterprise private networks located at different places, and therefore the service data and BPDUs between the enterprise private networks can be transparently transmitted over the public network. FTTO is applicable to enterprise networks. In this scenario, FTTO implements TDM PBX, IP PBX, and private line service in the enterprise intranets.
  • FTTW: The OLT connects to ONUs using an ODN network, the ONUs connect to access points (APs) using GE for WLAN traffic backhaul. FTTW is the trend in Wi-Fi construction.

Why Is GPON Required?

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.

For Huawei GPON products please check: http://www.thunder-link.com

What is Huawei ATN 950B ?

Product Overview:

Huawei ATN950B designed for 2G/3G/LTE, VLL (Virtual leased line) and integrated services bearing, ATN 950B is a comprehensive device with 10GE ports. The
compact design with 300mm depth and 2U height makes it occupy less space and satisfy all kind demands of machine room. ATN 950B
has large capacity of 56G and 6 flexible slots. The main control panel and power panel support redundancy, which can ensure the flexibility
and reliable of services. With the faith of Huawei ‘Any Media’, ATN950B has functions of multi-service access, clock transmit in any medium,
high precision frequency and time synchronism. Besides, it provides multiple access port, such as copper cable, fiber-optical and so on. It
can be co-cabinet with BTS BBU, which can save precious site resource and reduce the Capex of carrier.

Product Appearance:

ATN950B

Network Position:

Designed for 2G/3G/LTE, VLL (Virtual leased line) and integrated services bearing, ATN 950B is a comprehensive device with 10GE ports. The
compact design with 300mm depth and 2U height makes it occupy less space and satisfy all kind demands of machine room. ATN 950B
has large capacity of 56G and 6 flexible slots. The main control panel and power panel support redundancy, which can ensure the flexibility
and reliable of services. With the faith of Huawei ‘Any Media’, ATN950B has functions of multi-service access, clock transmit in any medium,
high precision frequency and time synchronism. Besides, it provides multiple access port, such as copper cable, fiber-optical and so on. It
can be co-cabinet with BTS BBU, which can save precious site resource and reduce the Capex of carrier.

Product Features:

Compact 10GE Redundancy Platform: Only 2U height, coordinating with multiple security functions, ATN 950B has high reliability
with the main control panel redundancy, cross board redundancy and power panel redundancy.

Any Media Access: Multiple service access interfaces such as 10GE/GE/FE, Cpos, Smart E1 are supplied, so ATN 950B can totally meet
the demands of services and scenarios, boosting the unification of multiple networks at the last mile.

Large Capacity, All Services Borne: ATN 950B has eight 10GE ports, two 10GE ports of single slot which is better to satisfy the customer’s
service access demand. ATN 950B supports service comprehensive bearer of 2G/3G/LTE and VLL (Virtual leased line). As pre-AGG, and with
large capacity of 56G and FIB of 128K, ATN 950B can be applied in scenarios of 10GE rings, ring with chain and pre-aggregate node.

Big Buffer Design, Against Congestion Effectively: With the design of big buffer, ATN 950B series can against network traffic burst
effectively and promote customer experience.

Plug-and-Play, Replace-and-Play, High Efficiency Deployment: One time site visit and remote plug and play configuration can realize
services fast provisioning to 5 minutes. With the design of Built-in test packet generator (compliant with RFC2544/Y.1564), it is tester
free for the service deployment
Perfect Clock synchronization Solution: ATN 950B series supports IEEE1588v2 OC, BC and TC all mode, 1588 ACR, Synchronous
Ethernet, Adaptive clock recovery which perfectly solves the problems of high precision clock synchronization and in-buliding clock
coverage of mobile packet bearer network. ATN 950B series fulfills the clock synchronization requirement of LTE evolution in long run
and reduces investment on GPS and BITS.

Hardware NQA&OAM, Reliable Performance Statistics: ATN 950B series has the hardware-OAM capability. 3.3ms packet interval
ensures the fault be detected as fast as possible and services be switched within 50ms. It supports multiple OAM protocols (Y.1731,
Y.1564, BFD over everything, TWAMP and RFC2544 etc.). And, via collecting and detecting real-time services performances, the quality
status of the whole network is open-and-shut.

SDN-Based Software Architecture, Simplified O&M: Based on SDN software architecture, faced application, ATN 950B supplies
standard north API and south API to realize new service rapid innovation. The separation of controlling plane and forwarding plane
makes the disperse devices unified managed and service deployment decoupled from forwarding plan.

How to do if the root password of a Huawei OLT is lost?

Load the empty database matched the device again through DoS. After restarting the device, log in to the system by using the default root password admin (Huawei OLT) or mduadmin (MDU). This method will lead to loss of data configurations and the user needs to configure the data again.

Modify the configuration file using the U2000.
On the U2000, choose Administration > NE Security Management > LCT User Management from the main menu.
On the LCT User Management tab page, select NE User and then Device Type. Select the desired device name from the Device Name column and user name from the Name column. In the displayed dialog box, choose Set Password to set the new password.

If the device is managed by the NMS, modify the configuration file on the NMS as follows:
Back up the configuration file of the device on the NMS.
Open the configuration file and find out the record of changing the root password, as shown in boldface in the following display.
[MA5600V800R005: 6833]
#
[global-config]

<global-config>

terminal user name buildrun_new lww231 *[)!AAYS*Y&aU86K;V-a@AUA!!* 1 2009:06:04

:17:07:25 2009:06:04:17:07:25 root 2 6 —–

terminal user name buildrun_new bmsmpls *[4P]`OUIa%=[G]0U3=OWJY1!!* 0 2009:06:

08:15:01:02 2009:06:08:15:01:02 root 3 65535 —–

adsl mode switch-to ADSL

vdsl mode switch-to normal
Delete the boldface part and then save the configuration file.
Load the modified configuration file to the system through the NMS and activate the configuration file.
Log in to the device by using the default root password admin (OLT) or mduadmin (MDU).

How to Creating link in U2000 between NE40 & S9300, performance data is not showing in U2000?

Issue Description

In U2000 after creating link and instance between Huawei NE40 & S9300, performance data (packet loss, delay & jitter) is not showing in U2000

Alarm Information

Null

Handling Process

following steps to solve this problem.

Step 1:login to  device  S9303_CE_A   
Step 2:run the command  delete the nqa-server info   
Step 3:undo nqa-server udpecho 10.254.1.241 [IP address of nqa-server]
Step 4: recreate the link PM instance  for the Link NE40___S9303_CE_A
Step 5:login the device check the nqa-server status
Step 6:display  nqa-server

display nqa-server supposed to show like below 
[S9306-33]display nqa-server
NQA Server Max:5000                  NQA Server Num:1
NQA Concurrent TCP Server:0          NQA Concurrent UDP Server:1

nqa-server udpecho 10.254.1.241 33434    Active
Root Cause

After checking the configuration of S9300 by display nqa-server and found NQA Server is not active on that device. Here is the display status:

[S9303_CE_A] display nqa-server
NQA Server Max:5000                  NQA Server Num:1
NQA Concurrent TCP Server:0          NQA Concurrent UDP Server:1

nqa-server udpecho 10.254.1.241 33434
This shows the NQA serve status is inactive

Suggestions

Carefully check the NQA server status when you encounter this problem.