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TechNotes-Understanding and Configuring Flex-PON 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Understanding and Configuring Flex-PON

Understanding and Configuring Flex-PON

Flex-PON is a flexible PON solution developed by Huawei for GPON and XG(S)-PON. It implements smooth network evolution through the integrated Flex-PON service board.

What Is Flex-PON?

Flex-PON is a flexible PON solution developed by Huawei for GPON and XG(S)-PON. It implements smooth network evolution through the integrated Flex-PON service board.

Multi-mode Integration

The ports of the Flex-PON service board can work in multiple modes , including:

  • GPON
  • XG-PON
  • XGS-PON
  • GPON&XG-PON Combo
  • GPON&XGS-PON Combo

The port mode of the Flex-PON service board can be set as required. After the port mode is set, the corresponding ONU can be connected to the optical module that matches the port mode.

Smooth Evolution

The Flex-PON supports the evolution from the GPON network to the XG(S)-PON network.

  • No board needs to be replaced. You only need to load the RTU (Right to Use, license) and replace the optical module to realize the evolution from GPON to XG(S)-PON.
  • The OSS needs to be integrated only once. After the evolution from the GPON network to the XG(S)-PON network, no secondary integration is required.
  • The ONT supports on-demand replacement.

Mapping between the Flex-PON port mode, RTU type, optical module type, and ONU type

When formulating an evolution solution for the Flex-PON, ensure that the port mode is supported by the RTU, optical module, and ONU. The following table lists the mapping between the Flex-PON port mode and the RTU, optical module, and ONU type.

Table 1-1 Mapping Between the Port Mode and the RTU, Optical Module, and ONU

Port Mode

RTU Type

Optical Module Type

ONU Type

GPON

No need

GPON

GPON ONU

XG-PON

XG(S)PON RTU

XG-PON

XG-PON ONU

XGS-PON

XG(S)PON RTU

XGS-PON

  • XG-PON ONU
  • XGS-PON ONU

XG-PON Combo

XG(S)PON RTU

XG-PON Combo

  • GPON ONU
  • XG-PON ONU

XGS-PON Combo

XG(S)PON RTU

XGS-PON Combo

  • GPON ONU
  • XG-PON ONU
  • XGS-PON ONU

Flex-PON Evolution Solution

This solution describes the smooth evolution from GPON to XG(S)-PON through the Flex-PON board.

Evolution Solution Overview

Before Evolution

Figure 1 shows the GPON FTTx network, the OLT uses the Flex-PON service board to connect to the GPON ONU before the evolution.

Figure 1-1 GPON FTTx Network

Evolution Solution

Figure 2 shows the smooth evolution from the GPON network to the XG(S)-PON network by Flex-PON solution.

Figure 1-2 Evolution Solution
The evolution solution must be completed in five steps:
  1. Loading RTU;
  2. Configuring the Flex-PON port mode;
  3. Replace the optical module;
  4. Replacing or adding an ONU;
  5. Configuring Services;

Operation Procedure

  1. Load the RTU. Use the NMS to remotely load the RTU to the Flex-PON port.
    • The Flex-PON port can work normally only when the corresponding RTU is loaded (except for the GPON mode).
    • The RTU can be loaded only through the NMS, this service scenario cannot be performed without the NMS.
  2. Set the Flex-PON port mode. On the OLT, run the port flex-mode { all | portid } { gpon | xg-pon | xgs-pon | combo-pon { xg/g | xgs/g } [ auto | wdm ] }command to set the port mode of the Flex-PON.

    Parameter

    Parameter Description

    all

    Sets the port mode of all ports on a flex-PON board.

    portid

    Set the port mode of a Flex-PON port.

    gpon

    Set the port mode of the Flex-PON port to GPON.

    xg-pon

    Set the port mode of the Flex-PON port to XG-PON.

    xgs-pon

    Set the port mode of the Flex-PON port to XGS-PON.

    combo-pon

    Set the port mode of the Flex-PON port to Combo-PON. In this case, you need to specify the Combo-PON type.

    xg/g

    Set the port mode of the Flex-PON port to XG-PON&GPON Combo-PON.

    xgs/g

    Set the port mode of the Flex-PON port to XGS-PON&GPON Combo-PON.

    auto

    Set the multiplexing mode of a combo-PON port to auto.

    wdm

    Set the multiplexing mode of a combo-PON port to WDM.

    For example, set port 0 of the Flex-PON board to work in xgs/g combo mode and set the multiplexing mode to WDM.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:combo-pon  
    { xg/g<K>|xgs/g<K> }:xgs/g
    { <cr>|auto<K>|wdm<K> }:wdm
  3. Replace the GPON optical module with a Flex-PON optical module.

    The optical module type must be the same as the port mode. Otherwise, the optical module cannot work properly.

  4. Add the XG(S)-PON ONU or replace the GPON ONU with the XG(S)-PON ONU.
  5. Configure services. For details, see the Flex-PON Configuration Guide.

GPON Evolution to XG-PON

Evolution Solution

Figure 1 shows the smooth evolution from the GPON network to the XG-PON network by Flex-PON solution.

Figure 1-3 GPON Evolution to XG-PON

Operation Procedure

  1. Load the RTU. Use the NMS to remotely load the XG(S)PON RTU to the Flex-PON port.
  2. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from gpon to xg-pon.
    For example, set port 0 of the Flex-PON board to the xg-pon mode.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:xg-pon  

    If a GPON ONU already exists on the Flex-PON port, you need to delete the GPON ONU and then switch the mode. Otherwise, the switching fails.

  3. Replace the GPON optical module with a XG-PON optical module.
  4. Add the XG-PON ONU or replace the GPON ONU with the XG-PON ONU.
    NOTE:

    The XG-PON optical module can be connected to only the XG-PON ONU.

  5. Configure services. For details, see the Flex-PON Configuration Guide.

  6. The evolution is complete.

Reference Information

After the XG-PON FTTx network evolution is complete, if you want to return to the GPON FTTx network, perform the following steps:

  1. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from xg-pon to gpon.

    If a XG-PON ONU already exists on the Flex-PON port, you need to delete the XG-PON ONU and then switch the mode. Otherwise, the switching fails.

  2. Replace the XG-PON optical module with a GPON optical module.
  3. Replace the XG-PON ONU with the GPON ONU.
    NOTE:

    The GPON optical module can be connected to only the GPON ONU.

  4. Configure services. For details, see the Flex-PON Configuration Guide.
  5. The evolution is complete.

GPON Evolution to XGS-PON

Evolution Solution

Figure 1 shows the smooth evolution from the GPON network to the XGS-PON network by Flex-PON solution.

Figure 1-4 GPON Evolution to XGS-PON

Operation Procedure

  1. Load the RTU. Use the NMS to remotely load the XG(S)PON RTU to the Flex-PON port.
  2. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from gpon to xgs-pon.
    For example, set port 0 of the Flex-PON board to the xgs-pon mode.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:xgs-pon  

    If a GPON ONU already exists on the Flex-PON port, you need to delete the GPON ONU and then switch the mode. Otherwise, the switching fails.

  3. Replace the GPON optical module with a XGS-PON optical module.
  4. Add the XGS-PON ONU or replace the GPON ONU with the XGS-PON ONU.
    NOTE:

    The XGS-PON optical module can be connected to XG-PON ONU and XGS-PON ONU.

  5. Configure services. For details, see the Flex-PON Configuration Guide.

  6. The evolution is complete.

Reference Information

After the XGS-PON FTTx network evolution is complete, if you want to return to the GPON FTTx network, perform the following steps:

  1. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from xgs-pon to gpon.

    If a XGS-PON ONU already exists on the Flex-PON port, you need to delete the XGS-PON ONU and then switch the mode. Otherwise, the switching fails.

  2. Replace the XGS-PON optical module with a GPON optical module.
  3. Replace the XGS-PON ONU with the GPON ONU.
    NOTE:

    The GPON optical module can be connected to only the GPON ONU.

  4. Configure services. For details, see the Flex-PON Configuration Guide.
  5. The evolution is complete.

GPON Evolution to XG-PON Combo

Evolution Solution

Figure 1 shows the smooth evolution from the GPON network to the XG-PON Combo network by Flex-PON solution.

Figure 1-5 GPON Evolution to XG-PON Combo

Operation Procedure

  1. Load the RTU. Use the NMS to remotely load the XG(S)PON RTU to the Flex-PON port.
  2. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from gpon to xg/g combo-pon and set the multiplexing mode to WDM.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:combo-pon  
    { xg/g<K>|xgs/g<K> }:xg/g
    { <cr>|auto<K>|wdm<K> }:wdm
    NOTE:

    The XG-PON Combo supports the GPON ONU type. Therefore, you do not need to delete the GPON ONU when switching the port mode.

  3. Replace the GPON optical module with a XG-PON Combo optical module.

    After the port mode is switched to XG-PON Combo mode, the GPON optical module can continue to work and the GPON ONU can continue online. However, after the GPON optical module is removed and inserted, the GPON optical module cannot work. In this case, the XG-PON Combo optical module must be inserted.

  4. Add the XG-PON ONU or replace the GPON ONU with the XG-PON ONU.
    NOTE:

    The XG-PON Combo optical module can be connected to GPON ONU and XG-PON ONU.

  5. Configure services. For details, see the Flex-PON Configuration Guide.

  6. The evolution is complete.

Reference Information

After the XG-PON Combo FTTx network evolution is complete, if you want to return to the GPON FTTx network, perform the following steps:

  1. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from xg/g combo-pon to gpon.

    If a ONU already exists on the Flex-PON port, you need to delete the ONU and then switch the mode. Otherwise, the switching fails.

  2. Replace the XG-PON Combo optical module with a GPON optical module.
  3. Replace the XG-PON ONU with the GPON ONU.
    NOTE:

    The GPON optical module can be connected to only the GPON ONU.

  4. Configure services. For details, see the Flex-PON Configuration Guide.
  5. The evolution is complete.

GPON Evolution to XGS-PON Combo

Evolution Solution

Figure 1 shows the smooth evolution from the GPON network to the XGS-PON Combo network by Flex-PON solution.

Figure 1-6 GPON Evolution to XGS-PON Combo
NOTE:

XG(S)-PON is short for XG-PON and XGS-PON.

Operation Procedure

  1. Load the RTU. Use the NMS to remotely load the XG(S)PON RTU to the Flex-PON port.
  2. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from gpon to xgs/g combo-pon and set the multiplexing mode to WDM.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:combo-pon  
    { xg/g<K>|xgs/g<K> }:xgs/g
    { <cr>|auto<K>|wdm<K> }:wdm
    NOTE:

    The XGS-PON Combo supports the GPON ONU type. Therefore, you do not need to delete the GPON ONU when switching the port mode.

  3. Replace the GPON optical module with a XGS-PON Combo optical module.

    After the port mode is switched to XGS-PON Combo mode, the GPON optical module can continue to work and the GPON ONU can continue online. However, after the GPON optical module is removed and inserted, the GPON optical module cannot work. In this case, the XGS-PON Combo optical module must be inserted.

  4. Add the XG(S)-PON ONU or replace the GPON ONU with the XG(S)-PON ONU.
    NOTE:

    The XGS-PON Combo optical module can be connected to GPON ONU, XG-PON ONU and XGS-PON ONU.

  5. Configure services. For details, see the Flex-PON Configuration Guide.

  6. The evolution is complete.

Reference Information

After the XGS-PON Combo FTTx network evolution is complete, if you want to return to the GPON FTTx network, perform the following steps:

  1. Set the Flex-PON port mode. On the OLT, set the Flex-PON port mode from xgs/g combo-pon to gpon.

    If a ONU already exists on the Flex-PON port, you need to delete the ONU and then switch the mode. Otherwise, the switching fails.

  2. Replace the XGS-PON Combo optical module with a GPON optical module.
  3. Replace the XG(S)-PON ONU with the GPON ONU.
    NOTE:

    The GPON optical module can be connected to only the GPON ONU.

  4. Configure services. For details, see the Flex-PON Configuration Guide.
  5. The evolution is complete.

Flex-PON Configuration Guide

Figure 1 shows the flowchart for configuring the Flex-PON service. After setting the Flex-PON port mode, you can configure services according to the configuration cases in the corresponding scenario.

Figure 1-7 Flowchart for configuring the Flex-PON service

Configuration Procedure

  1. Set the port mode of the Flex-PON.

    On the OLT, run the port flex-mode command to set the port mode of the Flex-PON.

    NOTE:

    The configured Flex-PON port mode must be the same as the optical module type. Otherwise, the cannot work properly.

    For example, set port 0 of the Flex-PON board to work in xgs/g combo mode and set the multiplexing mode to WDM.
    huawei(config-if-gpon-0/1)#port flex-mode
    { all<K>|portid<U><0,15> }:0 
    { combo-pon<K>|gpon<K>|xg-pon<K>|xgs-pon<K> }:combo-pon  
    { xg/g<K>|xgs/g<K> }:xgs/g
    { <cr>|auto<K>|wdm<K> }:wdm

  1. Service configuration.

    NOTE:

    After the GPON is switched to the XG(S)-PON, pay attention to the following points:

    • For the evolution from GPON to XG-PON Combo or XGS-PON Combo, if the GPON ONU is not replaced after the evolution, the GPON ONU configuration remains unchanged.
    • For the evolution from GPON to XG-PON and XGS-PON, the XG-PON ONU or XGS-PON ONU needs to be configured because the GPON ONU is replaced with the XG-PON ONU or XGS-PON ONU after the evolution.

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Updated: 2019-09-19

Document ID: EDOC1100086824

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