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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).
Configuration Example (Point-to-Point Transparently Transmitted E-Line Services)

Configuration Example (Point-to-Point Transparently Transmitted E-Line Services)

This section considers a point-to-point transparently transmitted E-Line service as an example to describe how to configure the Ethernet service according to the network planning information.

Networking Diagram

This section describes the networking information about the NEs.

As shown in Figure 3-35, NE1 is a terminal station of a backhaul network. The service requirements are as follows:

  • NE1 transparently transmits the Ethernet services from the NodeB to NE2 in point-to-point manner.
  • DSCP flags are used to identify the priorities of the Ethernet services from the NodeB.

To meet the preceding requirements, point-to-point transparently transmitted E-line services are configured; in addition, corresponding QoS processing is configured.

Figure 3-35  Networking diagram (point-to-point transparently transmitted E-Line 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.

The connections of Ethernet links shown in Figure 3-35 are described as follows.

Table 3-181  Connections of Ethernet links (NE1)
Link Port Description
Between NE1 and the NodeB 3-EM6T-3 Configure this port to access services from the NodeB.
Between NE1 and NE2 3-EM6T-2

Configure this port to transmit backhaul services from a NodeB.

Service Planning

You need to plan the corresponding parameters information before configuring an Ethernet service.

Service Planning (Ethernet Ports)

The service planning information contains the information about all the parameters required for configuring Ethernet ports.

Table 3-182 provides the information about the Ethernet port involved in the service.

NOTE:
  • In this example, the GE port on the NodeB works in auto-negotiation mode. Hence, the GE port of each NE that accesses services must work in auto-negotiation mode. If the peer Ethernet port works in another mode, the local Ethernet port must work in the same mode. The working modes of the Ethernet ports inside the network are planned as auto-negotiation.
  • In this example, to ensure that the Ethernet frames that carry more than one tag such as QinQ can traverse the equipment, the maximum frame length is set to 1620 (bytes). If the equipment needs to transmit jumbo frames with a greater length, set the maximum frame length according to the actual length of a jumbo frame. Normally, if the equipment is interconnected with NodeBs, the maximum frame length can also assume its default value of 1620.
  • Generally, the flow control function is enabled only when the NE or the peer equipment is inadequate for QoS processing. The planning information of flow control must be the same for the equipment at both ends.
Table 3-182  Ethernet port
Parameter

3-EM6T-3

3-EM6T-2

Encapsulation Type Null
Working Mode Auto-Negotiation
Max Frame Length (bytes) 1620
Flow Control Disabled
Service Planning (Ethernet Services)

The service planning information contains the information about all the parameters required for configuring Ethernet services.

Table 3-183 provides the detailed service planning information.

Table 3-183  Point-to-point transparently transmitted E-line service
Parameter NE1
Service ID 1
Service Name NodeBtoNE2_Eline
Direction UNI-UNI
BPDU Not Transparently Transmitted
Source Port 3-EM6T-3
Source VLANs Blank
Sink Port 3-EM6T-2
Sink VLANs Blank
Service Planning (QoS)

The service planning information contains the information about all the parameters required for configuring QoS.

QoS (Diffserv)

DS is the basis for QoS. It is recommended that the VLAN priority or DSCP value of the NodeB services be allocated according to the service type. Then, the transmission network creates the corresponding DS domain according to the allocated VLAN priority or DSCP value. Each Ethernet port involved in the service must use the same DS configuration.

In this example, the NodeB services are allocated with corresponding DSCP values according to the service type, and the NEs allocate the PHB service classes according to the DSCP value, as shown in Table 3-184. Each Ethernet port involved in the service uses the same DS configuration.

Table 3-184  Service class and PHB service class
PHB Service Class DSCP Corresponding Service Type
CS7 56 -
CS6 48 -
EF 40 Real-time voice service and signaling service (R99 conversational and R99 streaming services)
AF4 32 -
AF3 24 Real-time OM and HSDPA services (OM streaming and HSPA streaming services)
AF2 16 Non-real-time R99 service (R99 interactive and R99 background services)
AF1 8 -
BE 0 HSDPA data service (HSPA interactive and background services)
NOTE:
  • During the mapping of the PHB service class, CS7 is not recommended, because CS7 may be used to transmit Ethernet protocol packets or inband DCN packets on the NE.
  • The default mapping relationships for the DS domain comply with the network planning requirements and therefore do not need to be modified.
  • The required trusted packet type is not the C-VLAN priority but IP-DSCP value. Therefore, the trusted packet type needs to be modified for service-associated Ethernet ports applied in the default DS domain.
QoS (Queue Scheduling Mode)

Generally, all Ethernet port involved in the service use the same queue scheduling mode.

Table 3-185 lists the queue scheduling mode used by each Ethernet port involved in the service in this example.

Table 3-185  Queue scheduling mode
PHB Service Class Queue Scheduling Mode
CS7 SP
CS6 SP
EF SP
AF4 WRR (weight = 5)
AF3 WRR (weight = 60)
AF2 WRR (weight = 30)
AF1 WRR (weight = 5)
BE SP
QoS (CAR or Shaping for a Specified Service Flow)

Normally, flow control is already performed on 2G/3G base stations and BSCs/RNCs and therefore CAR or shaping processing does not need to be performed again on the backhaul network.

QoS (Port Shaping)

If the Ethernet bandwidth planned for the aggregation link is lower than the total bandwidth of the aggregation services, you can perform port shaping at the edge node to limit the Ethernet service traffic that travels to the aggregation node, preventing congestion at the aggregation node.

In this example, you do not need to perform port shaping.

Configuration Process

This section describes the process for data configuration.

Configuration Process (Ethernet Ports)

This section describes the process for configuring Ethernet ports.

Prerequisites

  • You must be an NM user with NE operator authority or higher.
  • The Ethernet board must be added on the NE Panel.
Tools, Equipment, and Materials

U2000

Procedure

  1. Configure Ethernet ports. See Setting the General Attributes of Ethernet Interfaces.


    The values for the relevant parameters are provided as follows.

    Parameter Value

    3-EM6T-3

    3-EM6T-2

    Enable Port Enabled
    Port Mode Layer 2
    Encapsulation Type Null
    Working Mode Auto-Negotiation
    Max Frame Length(bytes) 1620

Configuration Process (Service Information)

This section describes the process for configuring service information.

Prerequisites

  • You must be an NM user with NE operator authority or higher.
  • The Ethernet board must be added on the NE Panel.
  • The parameter Port Mode is set to Layer 2 for the UNI port that carries the E-Line service.
Tools, Equipment, and Materials

U2000

Procedure

  1. See Configuring UNI-UNI E-Line Services and configure the E-Line services.


    The values for the relevant parameters are provided as follows.

    Parameter Value
    Service ID 1
    Service Name NodeBtoNE2_Tline
    Direction UNI-UNI
    BPDU Not Transparently Transmitted
    MTU (bytes) -
    Service Tag Role -
    Source Port 3-EM6T-3
    Source VLANs Blank
    Sink Port 3-EM6T-2
    Sink VLANs Blank

Configuration Process (QoS)

This section describes the procedures for configuring QoS.

Procedure

  1. OptiX OSN 500/550 see Modifying the Mapping Relationships for the DS Domain, OptiX OSN 580 see Modifying the Mapping Relationships for the DS Domain, and change the mapping relationships for the DS domain.

    The values for the relevant parameters that need to be set in the main interface are provided as follows.

    Parameter Value
    Mapping Relation ID 2
    Mapping Relation Name Default Map 2

    The values for the relevant parameters that need to be set in the Ingress Mapping Relation tab page are provided as follows.

    CVLAN SVLAN IP DSCP MPLS EXP PHB
    0 0 Default value Default value BE
    1 1 AF11
    2 2 AF21
    3 3 AF31
    4 4 AF41
    5 5 EF
    6 6 CS6
    7 7 CS7

    The values for the relevant parameters that need to be set in the Egress Mapping Relation tab page are provided as follows.

    PHB CVLAN SVLAN IP DSCP MPLS EXP
    BE 0 0 Default value Default value
    AF11 1 1
    AF21 2 2
    AF31 3 3
    AF41 4 4
    EF 5 5
    CS6 6 6
    CS7 7 7
    NOTE:
    • The AF1 is classified into three sub service classes, namely, AF11, AF12, and AF13, only one of which is valid. In this example, the AF11 is used. It is the same case with the AF2, AF3, and AF4.
    • The default mapping relationships for the DS domain comply with the network planning requirements and therefore do not need to be modified.

  2. OptiX OSN 500/550 see Changing the Ports in a DS Domain, OptiX OSN 580 see Changing the Ports Applied to a DS Domain and Their Trusted Packet Types, and change the ports that are applied to the DS domain and their trusted packet types.

    Selected Port Packet Type

    3-EM6T-1

    3-EM6T-2

    ip-dscp
    NOTE:

    The required trusted packet type is not the C-VLAN priority but IP-DSCP value. Therefore, the trusted packet type needs to be modified for service-associated Ethernet ports applied in the default DS domain.

  3. OptiX OSN 500/550 see Creating a Port Policy, OptiX OSN 580 see Creating a Port Policy, and create the port policy.

    The values for the related parameters are provided as follows.

    Parameter Value
    Policy ID 1
    Policy Name Port_Comm
    Grooming Police After Reloading

    SP (CS7, CS6, and EF)

    WRR (AF4-AF1)

    SP (BE)

    Policy Weight(%)

    5 (AF4)

    60 (AF3)

    30 (AF2)

    5 (AF1)

    Bandwidth Limit Disabled (for all PHB service classes)

  4. OptiX OSN 500/550 see Setting the Port That Uses the Port Policy, OptiX OSN 580 see Setting the Port That Uses the Port Policy, and set the ports that use the port policy.

    The values for the related parameters are provided as follows.

    Parameter Value
    Port_Comm
    Port

    3-EM6T-3

    3-EM6T-2

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Updated: 2019-01-21

Document ID: EDOC1100020976

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