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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).
Configuring EPL Services on an Ethernet Transparent Transmission Board

Configuring EPL Services on an Ethernet Transparent Transmission Board

EPL services provide the point-to-point Ethernet transparent transmission solution with the bandwidth exclusively occupied. EPL services are applicable when the communication equipment that is used to access the client-side data in the transmission network does not support VLANs or when the VLAN planning must be kept secret to the network operator.

Context

OptiX OSN 550 supports EPL services on an Ethernet transparent transmission board.

Networking Diagram

The completely isolated data services of two users at a station must be transported to another station.

Service Requirement

In the network as shown in Figure 2-67, the service requirements are as follows:

  • The two branches of user A that are located at NE1 and NE3 need to communicate with each other over Ethernet. A 10 Mbit/s bandwidth is required.
  • The two branches of user B that are located at NE1 and NE3 need to communicate with each other over Ethernet. A 20 Mbit/s bandwidth is required.
  • The services of user A must be isolated from the services of user B.
  • The Ethernet equipment of user A and user B provides 100 Mbit/s Ethernet ports of which the working mode is auto-negotiation, and does not support VLANs.
Figure 2-67  Networking diagram of the EPL services

NOTE:

This topic considers the OptiX OSN 550 as an example to describe the board layout. In the case of other products, the configuration method is the same, except for the slots. For the slot information, see the Hardware Description of the relevant product.

Board Configuration Information

Ethernet transparent transmission boards or Ethernet switching boards can be used for configuring EPL services. In this example, NE1 and NE3 are configured with two EGT1 boards respectively, which occupy logical slots 3 and 4.

Signal Flow and Timeslot Allocation

Ethernet services are received from an external port, encapsulated through an internal port, and mapped to the SDH network for transparent transmission. In this way, the node communicates with a remote node.

Figure 2-68 shows the signal flow and timeslot allocation of the EPL services.

For the method of calculating the bandwidth of the Ethernet services carried by a VCTRUNK, see Ethernet Service Bandwidths Carried by VCTRUNKs of Ethernet Boards.

Figure 2-68  Signal flow and timeslot allocation (Ethernet transparent transmission board)
NOTE:

The EGT1 board supports transparent transmission of Ethernet services, the link capacity adjustment scheme (LCAS), test frames, and other functions.



  • The EPL services of user A:
    • Occupy the first to fifth VC-12 timeslots of the first VC-4 (VC4-1:VC12:1-5) on the SDH link between NE1 and NE3 and pass through NE2.
    • Are added and dropped by using the first to fifth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-5) on the 3-EGT1 board of NE1 and the first to fifth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-5) on the 3-EGT1 board of NE3.
  • The EPL services of user B:
    • Occupy the sixth to fifteenth VC-12 timeslots of the first VC-4 (VC4-1:VC12:6-15) on the SDH link between NE1 and NE3 and pass through NE2.
    • Are added and dropped by using the first to tenth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-10) on the 4-EGT1 board of NE1 and the first to tenth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-10) on the 4-EGT1 board of NE3.
Table 2-158  Parameters of external ports on the Ethernet boards
Parameter NE1 NE3
Board 3-EGT1 4-EGT1 3-EGT1 4-EGT1
Port PORT1 PORT1 PORT1 PORT1
Enabled/Disabled Enabled Enabled Enabled Enabled
Working Mode Auto-Negotiation Auto-Negotiation Auto-Negotiation Auto-Negotiation
Maximum Frame Length 1522 1522 1522 1522
Table 2-159  Parameters of internal ports on the Ethernet boards
Parameter NE1 NE3
Board 3-EGT1 4-EGT1 3-EGT1 4-EGT1
Internal Port VCTRUNK1 VCTRUNK1 VCTRUNK1 VCTRUNK1
Mapping Protocol GFP GFP GFP GFP
Bound Path VC4-4:VC12-1-VC12-5 VC4-4:VC12-1-VC12-10 VC4-4:VC12-1-VC12-5 VC4-4:VC12-1-VC12-10

Configuration Process (Configuration on a Per-NE Basis)

The Ethernet transparent transmission boards support only EPL services. The EPL are already created by default and hence you need not configure the Ethernet transparent transmission boards on the U2000.

Prerequisites

You must be familiar with Flow of Configuring EPL Services.

Background Information

By default, EPL service connections from external ports to internal ports are already created for Ethernet transparent transmission boards. The EPL service connections can be queried on the U2000, but cannot be created, modified, or deleted on the U2000.

If the Ethernet transparent transmission boards in the actual application scenarios are different from the boards in this example, you need to learn about the requirements for configuring specific boards.

Procedure

  1. Configure the EPL services of user A1 and user B1 on NE1.
    1. Set the attributes of the external ports (PORT1 of 3-EGT1 board and PORT1 of the 4-EGT1 board) used by the services of user A1 and user B1.

      • In the NE Explorer, select the EGT1 and then choose Configuration > Ethernet Interface Management > Ethernet Interface from the Function Tree.
      • Select External Port.
      • Click the Basic Attributes tab. After setting the parameters, click Apply.
        Parameter Value in This Example Description

        Enabled/Disabled

        PORT1: Enabled

        PORT1 is used by the service of user A1. PORT2 is used by the service of user B1. In this example, Enabled/Disabled is set to Enabled for PORT1 and PORT2.

        Working Mode

        PORT1: Auto-Negotiation

        In this example, the Ethernet service access equipment of user A1 and user B1 supports the auto-negotiation mode. Hence, Working Mode is set to Auto-Negotiation for PORT1 and PORT2.

        Maximum Frame Length

        PORT1: 1522

        Generally, this parameter adopts the default value 1522.

        MAC Loopback

        PORT1: Non-Loopback

        The MAC loopback setting is used for fault diagnosis. In this example, MAC Loopback is set to Non-Loopback.

        PHY Loopback

        PORT1: Non-Loopback

        The PHY loopback setting is used for fault diagnosis. In this example, PHY Loopback is set to Non-Loopback.

    2. Set the attributes of the internal ports (VCTRUNK1 of 3-EGT1 board and VCTRUNK1 of the 4-EGT1 board) used by the services of user A1 and user B1.

      • Select Internal Port.
      • Click the Encapsulation/Mapping tab. After setting the parameters, click Apply.
        Parameter Value in This Example Description
        Mapping Protocol

        VCTRUNK1: GFP

        In this example, the EFS8 board is used. This parameter adopts the default value GFP. Mapping Protocol of the VCTRUNKs on the Ethernet boards of the interconnected equipment at both ends must be set to the same value.
        Scramble

        VCTRUNK1: Scrambling mode [X43+1]

        In this example, this parameter adopts the default value Scrambling mode [X43+1]. Scramble of the VCTRUNKs on the Ethernet boards of the interconnected equipment at both ends must be set to the same value.
        Check Field Length

        VCTRUNK1: FCS32

        In this example, this parameter adopts the default value FCS32. Check Field Length of the VCTRUNKs on the Ethernet boards of the interconnected equipment at both ends must be set to the same value.
        FCS Calculated Bit Sequence

        VCTRUNK1: Big endian

        When Mapping Protocol is set to GFP, FCS Calculated Bit Sequence is set to Big endian. FCS Calculated Bit Sequence of the VCTRUNKs on the Ethernet boards of the interconnected equipment at both ends must be set to the same value.
        Set Inverse Value for CRC

        VCTRUNK1: -

        When Mapping Protocol is set to GFP, this parameter is valid and adopts the default value -. Set Inverse Value for CRC of the VCTRUNKs on the Ethernet boards of the interconnected equipment at both ends must be set to the same value.
      • Click the Bound Path tab. Click the Configuration button. Set the following parameters in the Bound Path Configuration dialog box that is displayed. Then, click Apply.
        User Parameter Value in This Example Description
        User A1←→user A2 Configurable Ports VCTRUNK1 (3-EGT1) As shown in Figure 2-68, VCTRUNK1 of the 3-EGT1 board is used by the service between user A1 and user A2.
        Available Bound Paths Level VC12-xv

        The service between user A1 and user A2 uses a 10 Mbit/s bandwidth. Hence, five VC-12s need to be bound.

        For the method of computing the bound timeslots based on the service bandwidth, see Ethernet Service Bandwidths Carried by VCTRUNKs of Ethernet Boards.

        Service Direction Bidirectional The service between user A1 and user A2 is a bidirectional service.
        Available Resources VC4-4

        For the resources used by the specific boards, see Requirements for Binding Paths with VCTRUNKs on Ethernet Boards.

        Available Timeslots VC12-1 to VC12-5 Five VC-12s need to be bound for the service from user A1 to user A2. In this example, the first to the fifth VC-12 need to be selected in sequence.
        User B1←→user B2 Configurable Ports VCTRUNK1 (4-EGT1) As shown in Figure 2-68, VCTRUNK1 of the 4-EGT1 board is used by the service between user B1 and user B2.
        Available Bound Paths Level VC12-xv

        The service between user B1 and user B2 uses a 20 Mbit/s bandwidth. Hence, 10 VC-12s need to be bound.

        For the method of computing the bound timeslots based on the service bandwidth, see Ethernet Service Bandwidths Carried by VCTRUNKs of Ethernet Boards.

        Service Direction Bidirectional The service between user B1 and user B2 is a bidirectional service.
        Available Resources VC4-4

        For the resources used by the specific boards, see Requirements for Binding Paths with VCTRUNKs on Ethernet Boards.

        Available Timeslots VC12-1 to VC12-10 Ten VC-12s need to be bound for the service from user B1 to user B2. In this example, the first to the tenth VC-12 need to be selected in sequence.

    3. Configure the cross-connections from the Ethernet services to the SDH links for user A1 and user B1.

      • In the NE Explorer, select NE1 and then choose Configuration > SDH Service Configuration from the Function Tree.
      • Click Create on the lower-right pane to display the Create SDH Service dialog box. Set the parameters as follows.
        User Parameter Value in This Example Description
        User A1 Level VC12 The timeslot bound with the service of user A1 is at the VC-12 level. The service level must be consistent with the level of the path bound with the VCTRUNK.
        Service Direction Bidirectional The service of user A1 is a bidirectional service.
        Source Slot 3-EGT1-1(SDH-1) When you create a bidirectional SDH service from an Ethernet board to a line board, it is recommended that you set the slot of the Ethernet board as the source slot.
        Source VC4 VC4-4 The value range of Source VC4 is consistent with the value range of Available Resources, which is set for the paths bound with VCTRUNK1. In the case of VCTRUNK1, the value of Available Resources is VC4-4.
        Source Timeslot Range(e.g.1,3-6) 1-5 The value range of the source timeslot is consistent with the value range of Available Timeslots, which is set for the paths bound with VCTRUNK1. In this example, the value range of Available Timeslots is from VC12-1 to VC12-5.
        Sink Slot 5-SL4D-1(SDH-1) When you create a bidirectional SDH service from an Ethernet board to a line board, it is recommended that you set the slot of the line board as the sink slot.
        Sink VC4 VC4-1 In this example, VC4-1 is specified as the VC-4 timeslot of the Ethernet service on the line board.
        Sink Timeslot Range(e.g.1,3-6) 1-5 The value range of the sink timeslot can be the same as or different from the value range of the source timeslot. The number of source timeslots must be, however, the same as the number of sink timeslots. For example, if the source timeslots are five VC-12s, the sink timeslots must be five VC-12s.
        Activate Immediately Yes -
        User B1 Level VC12 The timeslot bound with the service of user B1 is at the VC-12 level. The service level must be consistent with the level of the path bound with the VCTRUNK.
        Service Direction Bidirectional The service of user B1 is a bidirectional service.
        Source Slot 4-EGT1-1(SDH-1) When you create a bidirectional SDH service from an Ethernet board to a line board, it is recommended that you set the slot of the Ethernet board as the source slot.
        Source VC4 VC4-4 The value range of Source VC4 is consistent with the value range of Available Resources, which is set for the paths bound with VCTRUNK1. In the case of VCTRUNK1, the value of Available Resources is VC4-4.
        Source Timeslot Range(e.g.1,3-6) 1-10 The value range of the source timeslot is consistent with the value range of Available Timeslots, which is set for the paths bound with VCTRUNK1. In this example, the value range of Available Timeslots is from VC12-1 to VC12-10.
        Sink Slot 5-SL4D-1(SDH-1) When you create a bidirectional SDH service from an Ethernet board to a line board, it is recommended that you set the slot of the line board as the sink slot.
        Sink VC4 VC4-1 In this example, VC4-1 is specified as the VC-4 timeslot of the Ethernet service on the line board.
        Sink Timeslot Range(e.g.1,3-6) 6-15 The value range of the sink timeslot can be the same as or different from the value range of the source timeslot. The number of source timeslots must be, however, the same as the number of sink timeslots. For example, if the source timeslots are 10 VC-12s, the sink timeslots must be 10 VC-12s.
        Activate Immediately Yes -

  2. Configure the pass-through services of user A1 and user B1 on NE2.
    1. Click . Select NE2 in the Navigation Tree that is displayed. Then, click OK.
    2. In the NE Explorer, select NE2 and then choose Configuration > SDH/PDH Service Configuration from the Function Tree.
    3. Click Create on the lower-right pane to display the Create SDH/PDH Service dialog box. Set the parameters as follows.

      Parameter Value in This Example Description
      Level VC12 The SDH service of NE1, which passes through NE2, is at the VC-12 level.
      Service Direction Bidirectional As shown in Figure 2-68, the SDH service from NE1 to NE2 is a bidirectional service.
      Source Slot 5-SL4D-1(SDH-1) As shown in Figure 2-68, the service signals are transmitted from 5-SL4D-1(SDH-1) to 5-SL4D-2(SDH-2). In this example, Source Slot is set to 5-SL4D-1(SDH-1).
      Source VC4 VC4-1 VC4-1 is allocated to the service from NE1 to NE2.
      Source Timeslot Range(e.g.1,3-6) 1-15 The service between user A1 and user B1 uses timeslots 1-15.
      Sink Slot 5-SL4D-2(SDH-2) As shown in Figure 2-68, the service signals are transmitted from 5-SL4D-2(SDH-2) to 5-SL4D-1(SDH-1). In this example, Sink Slot is set to 5-SL4D-2(SDH-2).
      Sink VC4 VC4-1 It is recommended that you set Sink Slot to be the same as Source Slot.
      Sink Timeslot Range(e.g.1,3-6) 1-15 The service between user A1 and user B1 uses timeslots 1-15.
      Activate Immediately Yes -

  3. Configure the EPL services of user A2 and user B2 on NE3.

    Refer to 1 and configure the EPL services for users A2 and B2.

  4. Check whether the service between user A1 and user A2 and the service between user B1 and user B2 are correct.
  5. Enable the performance monitoring function of the NEs. For details, see Setting Network-Wide Performance Monitoring.
  6. Back up the configuration data of the NEs. For details, see Backing Up the NE Data to the System Control Board.
Relevant Task

If the services are configured incorrectly and thus need to be deleted, see Deleting Ethernet Private Line Services.

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Updated: 2019-01-21

Document ID: EDOC1100020976

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