Configuring a GPON ONT Capacity Profile (Distributed Mode)

A GPON ONT capability profile identifies the actual capability of a GPON ONU. After an ONT is added and bound to a Huawei GPON ONT capability profile, the ONU carries the corresponding services according to parameters configured in the capability profile.

Context

All GPON ONUs must be bound to the GPON ONT capability profile. Specify the ONT capability profile when running the ont add command to add an ONU offline or running the ont confirm command to confirm an automatically discovered ONU.

Currently, the system provides seven default ONT capability profiles that are solidified in the system. The default profiles cannot be modified. The default profile IDs range from 1-7. The reserved ONT capability profile IDs are 8-16.

The contents of the capability profile restrict the port number that is used in commands for GEM port mapping, T-CONT/PQ mapping, and the ONT VLAN management.

The ONT capability profile must be configured according to the actual capability of the ONU. Different the capability profile parameters vary according to different ONUs.

Procedure

Step 1 Run the ont-profile add command to configure an ONT HG8546M capability profile.

• When you add an ONT capability profile, if the profile ID is not specified, the system automatically allocates the least idle profile ID; if the profile name is not specified, the system adopts the default name ont-profile_x, where, x is the corresponding ONT capability profile ID.
• The system supports up to 128 ONT capability profiles.
• The system default profiles include the MDU profile and several common ONT (such as OT925, HG850, and HG810) profiles, which can be directly used. It is recommended to manually configure an ONT capability profile only when the default ONT capability profile fails to meet actual requirements.
• When you add an MDU profile manually, the number of the ports must be set to zero.

Step 2  Run the display ont-profile command to query the ONT capability profile.

Huawei 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 2-7 shows FTTx networking applications.

Huawei 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 such as Huawei MA5600T 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 like Huawei HG8546M 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.

Bridging + Voice ONT Network Scenario (GPON Access)

Service Requirements and Application Scenario
Service Requirements
Optical fibers are connected to user homes and triple play services are required. The following
provides detailed service requirements:
Internet access of multiple PCs in a home is supported.
Access of multiple telephones in a home is supported.
IPTV programs can be previewed and watched using STBs.
Service extension is supported and different services do not affect each other.
Proper service security is ensured.
– Internet access services are protected against unauthorized access, user account
theft or borrowing, MAC/IP spoofing, and malicious attacks.
– Voice and IPTV services are protected against MAC/IP spoofing, malicious attack,
and traffic flooding attacks.
Service faults are easy to locate and services are easy to maintain.
Application Scenario
The bridging+voice ONT like Huawei HG8546M  provides Layer 2 data (Internet and IPTV services) and VoIP services. This scenario provides transparent transmission channels and requires simple service configuration, so this scenario applies to Layer 2 networking.
For Internet services, a PC directly performs dial-up. Then, the upper-layer broadband
remote access server (BRAS) device authenticates and accesses the PC. The PC can also
access the Internet using the Dynamic Host Configuration Protocol (DHCP) or static IP
address.
For VoIP services, Huawei ONT with a bulit-in voice module encapsulates voice service
packets, and the OLT transmits them to the upstream next generation network (NGN) or
IP multimedia subsystem (IMS).
For IPTV services, the set top box (STB) obtains an IP address from the DHCP server
for ordering programs. The ONT transparently transmits the packets.

Configuration Process

Data Plan Principles for IP Addresses

Data Plan Principles for IP Addresses

Terminal Type:

1, Bridging+Voice ONT
Internet access:A PC obtains an IP address through PPPoE dialup. The ONT transparently transmits the packets.
VoIP:The ONT functions as a DHCP client and obtains an IP address from the DHCP server, or the NMS issues a static IP address to Huawei ONT using the configuration file. Voice signaling and media streams at multiple POTS ports share one IP address. Media streams are distinguished by port.
IPTV:The set top box (STB) obtains an IP address from the DHCP server for ordering programs. The ONT transparently transmits the packets.

2, Bridging ONT+HGW
Internet access:The HGW functions as a PPPoE client and obtains an IP address through PPPoE dialup. At the same time, the HGW functions as a DHCP server and allocates IP addresses to
PCs through the network cable and wireless fidelity (Wi-Fi) access. The ONT transparently transmits the packets.
VoIP:The HGW functions as a DHCP client and obtains an IP address from the DHCP server, or the application control server (ACS) issues a static IP address to the HGW using
TR069. Voice signaling and media streams at multiple Huawei POTS ports share one IP address. Media streams are distinguished by port. The ONT transparently transmits the packets.
IPTV:The HGW is configured with a bridging WAN port. The STB obtains an IP address from the DHCP server. The,HGW transparently transmits packets. The ONT also transparently transmits the packets.

3, Gateway ONT
Internet access:The HGW functions as a PPPoE client and obtains an IP address through PPPoE dialup. The ONT functions as a DHCP server and allocates IP addresses to PCs through the
network cable.
Wi-Fi access:l Layer 3 bridge Wi-Fi access service: A mobile equipment (ME) searches the SSID. After the ME is authenticated, the DHCP server assigns this ME the IP
address by IPoE. l Layer 3 route Wi-Fi access service: An ME searches the SSID. After the ME is authenticated, the DHCP address pool of an ONT assigns this ME the IP address and then
PPPoE dialup is automatically performed on the ONT such as Huawei HG8546M.
VoIP:The ONT functions as a DHCP client and obtains an IP address from the DHCP server, or the NMS issues a static IP address to the ONT using the configuration file. Voice signaling and media streams at multiple POTS ports share one IP address. Media streams are distinguished by port.
IPTV:The ONT functions as a DHCP client and obtains an IP from the DHCP server. At the same time, the ONT functions as a DHCP server and allocates IP addresses to STBs.