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FTTH Networking Using PON Upstream Transmission
FTTH Networking Using P2P Upstream Transmission
User Side
Concept | Description |
Home gateway (HGW or HG) | A gateway device positioned for small office and home office (SOHO) users. It provides multiple service ports, such as POTS and LAN, wireless local area network (WLAN), or xDSL ports. The HGW supports routing and remote management and diagnosis. |
VoD | A technology that enables users to order any program in a VoD program library. During program playing, users can perform operations, such as pause, fast forward, fast rewind, and program locating. |
Multicast | Is also called broadband TV (BTV), which is similar to traditional cable TV (CATV) or satellite TV. User experience in watching a multicast program is the same as that in watching a traditional TV program. Unlike the traditional TV, the IPTV system encodes audio signals and sends them to user terminals through an IP network. |
Access Side
Concept | Description |
PON | A network that uses the point-to-multipoint (P2MP) network architecture. A PON network consists of an optical line terminal (OLT), an optical distribution network (ODN), and optical network units (ONUs). It uses optical fibers to transmit data, supports more users with less optical fibers, and provides high access rates. |
ODN | A network that consists of optical fibers and passive optical components, such as one or more optical dividers. The ODN network provides highly reliable optical paths to connect ONUs to an OLT. |
OLT | An aggregation device located at a central office (CO), which terminates PON protocols. |
Optical network terminal (ONT) | A user terminal that provides various ports for users. In PON networking, the PON board of an OLT communicates with an ONT through the intermediate ODN network. In point-to-point (P2P) networking, an OLT communicates with an ONT through a P2P Ethernet optical access board. |
Split ratio | A ratio used for dividing a downstream optical signal into sub-signals in the PON system. A greater split ratio will result in high optical power for signal transmission over the same physical distance. |
Fiber to the home (FTTH) | A type of network that provides high bandwidths for home users. In PON networking, an OLT connects to ONTs through an ODN network and the ONTs connect to home users. In P2P networking, an OLT connects to ONTs and the ONTs connect to home users. The OLT provides voice, Internet access, and IPTV services for home users. |
Network Side
Concept | Description |
User-facing provider edge (U-PE) | A supplier routing device that connects to the router of a customer edge (CE), which is an OLT in this document. The U-PE supports routing and Multiprotocol Label Switching (MPLS) encapsulation. If a U-PE connects to multiple CEs, the U-PE supports basic bridging functions. In this case, the U-PE forwards data frames, which reduces the load of switching provider edges (S-PEs). |
Aggregation provider edge (PE-AGG) | An aggregation router, which provides aggregation and route forwarding functions for access devices. Compared with U-PEs, PE-AGGs provide fewer ports and higher performance and switching rates. |
NGN or IP multimedia subsystem (IMS) | A type of network that centers around softswitches and uses an open and standardized architecture. It provides voice, video, and data services. A type of system that uses Session Initiation Protocol (SIP) signaling as its call control signaling. It provides voice, data, and multimedia services. NOTE: In this document, the NGN or IMS is the softswitch that supports H.248 or SIP. |
IPTV head end | A contents preparation platform in the IPTV system. It receives signals, converts media formats, and manages media materials. |
PART 1:Adding an ONT to an OLT
Services can be configured for an ONT only after the ONT is successfully added to an OLT.
Data Plan
Item | Data |
DBA profile | Profile name: ftth_dba_mngt · Profile type: Type1 · Fixed bandwidth: 1 Mbit/s Profile name: ftth_dba_hsi · Profile type: Type4 · Maximum bandwidth: 32 Mbit/s Profile name: ftth_dba_voip · Profile type: Type2 · Assured bandwidth: 1 Mbit/s Profile name: ftth_dba_iptv · Profile type: Type2 · Assured bandwidth: 1 Mbit/s |
ONT line profile | Profile name: ftth T-CONT ID for management services: 4 T-CONT ID for voice services: 5 T-CONT ID for video services: 6 T-CONT ID for Internet access services: 7 GEM port ID for management services: 11 GEM port ID for voice services: 12 GEM port ID for video services: 13 GEM port ID for Internet access services: 14 |
ONT service profile | Profile name: ftth ONT port capability set: adaptive |
Network topology data | PON port:0/1/0 ONT IDs: 1 and 2 |
PART 1:Adding an ONT to an OLT
Services can be configured for an ONT only after the ONT is successfully added to an OLT.
Data Plan
Item | Data |
DBA profile | Profile name: ftth_dba_mngt · Profile type: Type1 · Fixed bandwidth: 1 Mbit/s Profile name: ftth_dba_hsi · Profile type: Type4 · Maximum bandwidth: 32 Mbit/s Profile name: ftth_dba_voip · Profile type: Type2 · Assured bandwidth: 1 Mbit/s Profile name: ftth_dba_iptv · Profile type: Type2 · Assured bandwidth: 1 Mbit/s |
ONT line profile | Profile name: ftth T-CONT ID for management services: 4 T-CONT ID for voice services: 5 T-CONT ID for video services: 6 T-CONT ID for Internet access services: 7 GEM port ID for management services: 11 GEM port ID for voice services: 12 GEM port ID for video services: 13 GEM port ID for Internet access services: 14 |
ONT service profile | Profile name: ftth ONT port capability set: adaptive |
Network topology data | PON port:0/1/0 ONT IDs: 1 and 2 |
Procedure
1. Configure GPON ONT profiles.
GPON ONT profiles include the DBA profile, line profile, service profile, and alarm profile.
• DBA profile: A DBA profile describes the 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 ONT-side service.
• Service profile: A service profile provides the service configuration channel for the ONT 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 ONT lines. When a statistical value reaches the threshold, the host is notified and an alarm is reported to the log host and the NMS.
a. Configure a DBA profile.
Run the display dba-profile command to query the existing DBA profiles in the system. If the existing DBA profiles in the system cannot meet the requirements, run the dba-profile add command to add a DBA profile.
huawei(config)#dba-profile add profile-name ftth_dba_mngt type1 fix 1024
huawei(config)#dba-profile add profile-name ftth_dba_voip type2 assure 1024
huawei(config)#dba-profile add profile-name ftth_dba_iptv type2 assure 1024
huawei(config)#dba-profile add profile-name ftth_dba_hsi type4 max 32768
Select a DBA profile of the proper bandwidth type and configure proper bandwidth according to the service types and total user count of the ONT. Note that the sum of the fixed bandwidth and the assured bandwidth must not be greater than the total bandwidth of the PON port.
b. Configure an ONT line profile.
Create a GPON ONT line profile, named ftth, and bind it to the DBA profile.
huawei(config)#ont-lineprofile gpon profile-name ftth
huawei(config-gpon-lineprofile-1)#tcont 4 dba-profile-name ftth_dba_mngt
huawei(config-gpon-lineprofile-1)#tcont 5 dba-profile-name ftth_dba_voip
huawei(config-gpon-lineprofile-1)#tcont 6 dba-profile-name ftth_dba_iptv
huawei(config-gpon-lineprofile-1)#tcont 7 dba-profile-name ftth_dba_hsi
Create different GEM ports according to different service types, in which
• GEM port 11 is used to carry management services.
• GEM port 12 is used to carry voice services.
• GEM port 13 is used to carry video services.
• GEM port 14 is used to carry Internet access services.
huawei(config-gpon-lineprofile-1)#gem add 11 eth tcont 4
huawei(config-gpon-lineprofile-1)#gem add 12 eth tcont 5
huawei(config-gpon-lineprofile-1)#gem add 13 eth tcont 6
huawei(config-gpon-lineprofile-1)#gem add 14 eth tcont 7
To change the default QoS mode, run the qos-mode command to set the QoS mode to gem-car or flow-car, and run the gem add command to set the index of the traffic profile bound to the GEM port.
When the QoS mode is priority-queue (PQ), the default queue priority is 0; when the QoS mode is flow-car or gem-car, traffic profile 6 is bound to the GEM port by default (no rate limitation).
After the configurations are complete, run the commit command to apply the parameters settings.
huawei(config-gpon-lineprofile-1)#commit
huawei(config-gpon-lineprofile-1)#quit
c. Configure an ONT service profile.
Create a GPON ONT service profile, named ftth. Configure the capability set of the ETH port and POTS port to adaptive. Then the system automatically adapts to the ONT according to the actual capability of the online ONT.
huawei(config)#ont-srvprofile gpon profile-name ftth
huawei(config-gpon-srvprofile-1)#ont-port eth adaptive pots adaptive
After the configurations are complete, run the commit command to apply the parameters setting.
huawei(config-gpon-srvprofile-1)#commit
huawei(config-gpon-srvprofile-1)#quit
2. Add an ONT.
Connect two ONTs to GPON port 0/1/0. Set the ONT IDs to 1 and 2, SNs to 3230313126595540 and 6877687714852901, passwords to 0100000001 and 0100000002, discovery mode for password authentication to once-on, and management mode to OMCI. Bind the two ONTs to ONT line profile ftth and ONT service profile ftth.
There are two methods of adding an ONT: add an ONT offline and confirm an automatically discovered ONT.
• Add ONTs offline.
If the password of an ONT is known, run the ont add command to add an ONT offline.
huawei(config)#interface gpon 0/1
huawei(config-if-gpon-0/1)#ont add 0 1 password-auth 0100000001 once-on no-aging omci ont-lineprofile-name
ftth ont-srvprofile-name ftth
huawei(config-if-gpon-0/1)#ont add 0 2 password-auth 0100000002 once-on no-aging omci ont-lineprofile-name
ftth ont-srvprofile-name ftth
• Confirm automatically discovered ONTs.
If the password or SN of an ONT is unknown, run the port portid ont-auto-find command in GPON mode to enable the ONT auto-discovery function of the GPON port. Then, run the ont confirm command to confirm the ONT.
huawei(config)#interface gpon 0/1
huawei(config-if-gpon-0/1)#port 0 ont-auto-find enable
huawei(config-if-gpon-0/1)#display ont autofind 0
//After this command is executed, the information about all ONTs connected to the GPON port through optical splitters is displayed.
huawei(config-if-gpon-0/1)#ont confirm 0 ontid 1 sn-auth 3230313126595540 omci ont-lineprofile-name
ftth ont-srvprofile-name ftth
huawei(config-if-gpon-0/1)#ont confirm 0 ontid 2 sn-auth 6877687714852901 omci ont-lineprofile-name
ftth ont-srvprofile-name ftth
If multiple ONTs of the same type bound to the same line profile or service profile are connected to the same port, you can bulk add ONTs by bulk confirming automatically discovered ONTs to make configuration easier and more efficient. To do so, the preceding command can be modified as follows:
huawei(config-if-gpon-0/1)#ont confirm 0 all sn-auth omci ont-lineprofile-name ftth
ont-srvprofile-name ftth
• (Optional) Bind the alarm profile to the ONT.
The default profile 1 is used in this example.
huawei(config-if-gpon-0/1)#ont alarm-profile 0 1 profile-id 1
huawei(config-if-gpon-0/1)#ont alarm-profile 0 2 profile-id 1
1. Check ONT status.
After an ONT is added, run the display ont info command to query the current status of the ONT. Ensure that Config flag of the ONT is active, Run State is online, Config state is normal, and Match state is match.
huawei(config-if-gpon-0/1)#display ont info 0 1
---------------------------------------------------------------------
F/S/P : 0/1/0
ONT-ID : 1
Control flag : active //Indicates that the ONT is activated.
Run state : online //Indicates that the ONT goes online successfully.
Config state : normal //Indicates that the configuration state of the ONT is normal.
Match state : match //Indicates that the capability profile bound to the ONT is consistent with the actual capability of the ONT.
...//The rest of the response information is omitted.
When Config state is failed, Run state is offline, or Match state is mismatch:
• If Control flag is deactivated, run the ont activate command in GPON mode to activate the ONU.
• If Run state is offline, a physical line may be broken or the optical module may be damaged. Check the line and the optical module.
• If Config state is failed, the configured ONU capability exceeds the actual ONU capability. In this case, run the display ont failed-configuration command in the diagnose mode to check the failed configuration item and the failure cause. Then, rectify the fault accordingly.
Reference link
https://forum.huawei.com/enterprise/en/access-network-olt-ma5608t-common-configuration/thread/523633-100181
Thanks
