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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 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).
Managing ATM/IMA Ports

Managing ATM/IMA Ports

On the OptiX OSN equipment, ATM/IMA ports are mapped into one ATM TRUNK.

Binding ATM TRUNKs

An ATM TRUNK can bind one or more E1 ports that transmit ATM/IMA services, or serial ports (SPs) that transmit ATM/IMA services.

Prerequisites

  • You are an NM user with Administrators rights or higher.
  • For ATM/IMA E1 services, set Port Mode in PDH Interface to Layer 2.
  • For Fractional ATM/IMA services, set Port Mode in PDH Interface to Layer 1 and configure Setting Serial Port Parameters.
Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE from the Object Tree and choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
  2. Click the Binding tab.
  3. Click Configuration.
    The Bound Path dialog box is displayed.
  4. Configure the related parameters according to planning information. Then, click to bind the required E1 ports or SPs to the ATM TRUNK.



    NOTE:
    • If ATM/IMA services need to be mapped into the ATM TRUNK that binds one or more E1 ports, select E1 in Level.
    • If ATM/IMA services need to be mapped into the ATM TRUNK that binds one or more serial ports, select Fractional E1 in Level.

  5. Click Apply, and then close the dialog box that is displayed.

Follow-up Procedure

If the IMA group is required, you need to bind the member links of the IMA group with the ATM TRUNK, enable the IMA protocol for the ATM TRUNK, and then configure the parameters of the IMA group.

Configuring an IMA group

If the ATM TRUNK binds IAM E1 links or Fractional IMA links, you need to configure the parameters of the IMA group.

Prerequisites

You are an NM user with Administrators rights or higher.

Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE from the Object Tree and choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
  2. Click the IMA Group Management tab.
  3. Configure the parameters of the IMA group according to planning information.



    NOTE:
    • When the IMA protocol needs to be enabled for the links bound with the ATM TRUNK, set IMA Protocol Enable Status to Enabled. Otherwise, set IMA Protocol Enable Status to Disabled.
    • After IMA Protocol Enable Status is set to Enabled, the E1 links or Fractional E1 timeslots bound with the ATM TRUNK are added to the IMA group.
    • The OptiX OSN equipment supports Symmetrical Mode and Symmetrical Operation only. Therefore, the parameters Minimum Number of Active Transmitting Links and Minimum Number of Active Receiving Links must be set to the same value. In addition, these two parameters must take the same value at the two ends of the IMA link.
    • On the two ends of the IMA link, you need to set IMA Protocol Version, IMA Transmit Frame Length, and Maximum Delay Between Links (ms) to the same values.
    • When IMA links are interconnected, the parameter Clock Mode needs to be set to different values at the interconnected ends. To be specific, if an NE is interconnected with a superior device (such as a BSC), the NE needs to adopt the ITC mode and the BSC needs to adopt the CTC mode; if an NE is interconnected with an inferior device (such as a NodeB), the NE needs to adopt the CTC mode and the NodeB needs to adopt the ITC mode.

  4. Click Apply, and close the dialog box that is displayed.

Setting ATM Port Parameters

This topic describes how to configure ATM port parameters.

Prerequisites

You are an NM user with Administrators rights or higher.

Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE from the Object Tree and choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
  2. Click the ATM Interface Management tab.
  3. Configure and adjust the ATM port attributes.



    NOTE:
    • UNI: the port connecting user-side devices. For example, the UNI port applies to the user-side interface on the common ATM network or to the user-side interface of the PE on the PSN network that transmits ATM PWE3 services.
    • NNI: the port connecting network-side devices. For example, the NNI port applies to the network-side interface on the common ATM network.
    • The ITU-T G.804 stipulates that the payload (48 bytes) of ATM cells must be scrambled before it is mapped into E1 signals. Therefore, you need to set this parameter to Enabled.
    • This parameter must assume the same value on the two ends of an ATM link. Otherwise, packet loss will occur.

  4. Click Apply, and close the dialog box that is displayed.

Querying Running Status of an IMA Group

This topic describes how to query the running status of an IMA group.

Prerequisites

You are an NM user with Administrators rights or higher.

Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE from the Object Tree and choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
  2. Click the IMA Group States tab. Then, close the dialog box that is displayed.
  3. Click Query, and then close the dialog box that is displayed.
  4. Query the running status of an IMA group.

Querying Link Running Status of an IMA Group

This topic describes how to query the running status of the member links of an IMA group.

Prerequisites

You are an NM user with Administrators rights or higher.

Tools, Equipment, and Materials

U2000

Procedure

  1. In the NE Explorer, select the NE from the Object Tree and choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
  2. Click the IMA Link States tab. Then, close the dialog box that is displayed.
  3. Click Query, and then close the dialog box that is displayed.
  4. Query the running status of the member links of an IMA group.
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Updated: 2019-01-21

Document ID: EDOC1100020976

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