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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).
Ethernet Port Configuration Parameters

Ethernet Port Configuration Parameters

Before configuring an Ethernet service, you need to configure the corresponding Ethernet ports.

Basic Attributes

This topic describes the parameters, such as the port attribute, port enabling status, and maximum frame length, that are used for configuring the basic attributes of an Ethernet port.

Table 2-184 lists the parameters that are used for configuring the basic attributes of an Ethernet port.

Table 2-184  Parameters for configuring the basic attributes of an Ethernet port

Field

Value Range

Description

Port

For example: NE1-6-EFS8-PORT1

Displays all the available ports on an Ethernet port. The letter n indicates the number of the PORT port.

Name

For example: PORT-1

Specifies the name of a PORT port. The name can contain up to 32 characters in English or 16 characters in Chinese.

Enabled/Disabled

Disabled, Enabled

Default value: Disabled

Enabled indicates that this port is used and services are available. Disabled indicates that the services on this port are not processed. Hence, when configuring a service, you need to enable the port to be used.

Working Mode

Auto-Negotiation, 10M Half-Duplex, 10M Full-Duplex, 100M Half-Duplex, 100M Full-Duplex, 1000M Full-Duplex

Default value: Auto-Negotiation

NOTE:
  • EGT1:
    • GE optical port: supports 1000M full-duplex and auto-negotiation.
    • GE electrical port: supports auto-negotiation.
  • The EFS8 board supports Auto-Negotiation, 10M Half-Duplex, 10M Full-Duplex, 100M Half-Duplex and 100M Full-Duplex.
  • EGS4:
    • GE electrical port: auto-negotiation, 1000M full-duplex, 100M full-duplex, and 10M full-duplex
    • GE optical port: auto-negotiation and 1000M full-duplex
    • FE optical port: 100M full-duplex

Specifies the working mode of the Ethernet port on a board. This parameter determines the maximum transmission rate and communication mode of the Ethernet port.

When setting this parameter, you must ensure the working modes of the interconnected ports are the same. Otherwise, the services are not available.

Maximum Frame Length

1518-9600

Default value: 1522

The Maximum Frame Length (Ethernet Port Attribute) parameter specifies the maximum frame length that is supported at an Ethernet port.

Impact on the System:

If the packet length exceeds the specified maximum frame length, the packets are discarded. Alternatively, the packet length is minimized to the specified frame length. This parameter takes effect only when the packet enters the port rather than when the packet that exits the port.

Recommendations:

Set the value as required. Generally, select the default value, unless otherwise specified.

Port Physical Parameters

Displays the value that is queried.

Displays the actual working status of the port.

MAC Loopback

Non-Loopback, Inloop

Default value: Non-Loopback

The MAC Loopback (Ethernet Port Attribute) parameter specifies the MAC loopback state at an Ethernet port. Port loopback setting is applied to locating faults only.

Impact on the System:

MAC loopback is a function of diagnosing faults. It may affect the services configured at the port. If the loopback state is set to Inloop, the services at the port may be interrupted.

Value description:
  • Non-Loopback: Indicates the normal state. If the equipment works normally, you do not need to set the MAC loopback.
  • Inloop: Loops back the services from the cross-connection side to the cross-connection side within the equipment at the local end.
PHY Loopback

Non-Loopback, Inloop

Default value: Non-Loopback

The PHY Loopback (Ethernet Port Attribute) parameter specifies the PHY loopback state at an Ethernet port. Port loopback setting is applied to locating faults only.

Impact on the System:

PHY loopback is a function of diagnosing faults. It may affect the services configured at the port. If the loopback state is set to Inloop, the services at the port may be interrupted.

Value description:
  • Non-Loopback: Indicates the normal state. If the equipment works normally, you do not need to set the PHY loopback.
  • Inloop: Loops back the services from the cross-connection side to the cross-connection side within the equipment at the local end.

Flow Control

This topic describes the parameters, such as autonegotiation and non-autonegotiation, which are used for configuring flow control function of an Ethernet port.

Table 2-185 lists the parameters that are used for configuring flow control of an Ethernet port.

Table 2-185  Parameters for configuring flow control of an Ethernet port

Field

Value Range

Description

Port

PORTn

Displays all the available MAC ports on an Ethernet board.

Specifies the PORT port. The letter n indicates the number of the PORT port.

Non-Autonegotiation Flow Control Mode

Disabled, Enable Symmetric Flow Control, Send Only, Receive Only

Default value: Disabled

The Non-Autonegotiation Flow Control Mode (Ethernet Port Attribute) specifies the flow control mode adopted when an Ethernet port works in non-auto-negotiation mode.

Value description:
  • Disabled: Indicates that the port disables the flow control function.
  • Enable Symmetric Flow Control: Indicates that the port can transmit PAUSE frames and process the received PAUSE frames.
  • Send Only: Indicates that the port sends the PAUSE frame only.
  • Receive Only: Indicates that the port can only process the received PAUSE frames.
Recommendations:

This parameter is meaningful only when you configure the EPL service. You can select the value as required.

Autonegotiation Flow Control Mode

Disabled, Enable Dissymmetric Flow Control, Enable Symmetric Flow Control, Enable Symmetric/Dissymmetric Flow Control

Default value: Disabled

The Autonegotiation Flow Control Mode (Ethernet Port Attribute) specifies the flow control mode adopted when an Ethernet port works in auto-negotiation mode.

Impact on the System:

If the negotiation result is to enable the flow control function, the PAUSE frame is transmitted to the upstream port.

Value description:
  • Disabled: Indicates that the port disables the flow control function.
  • Enable Dissymmetric Flow Control: Indicates that the port only transmits flow control frames, but does not process the received flow control frames.
  • Enable Symmetric Flow Control: Indicates that the port can transmit PAUSE frames and process the received PAUSE frames.
  • Enable Symmetric/Dissymmetric Flow Control: Indicates that the symmetric/dissymmetric flow control mode is decided by the auto-negotiation result.
Recommendations:

Generally, set this parameter to Enable Symmetric/Dissymmetric Flow Control, unless otherwise specified.

Network Attributes

This topic describes the parameters, such as port attribute and P port encapsulation format, which are used for configuring network attributes of an Ethernet port.

Table 2-186 lists the parameters that are used for configuring network attributes of an Ethernet port.

Table 2-186  Parameters for configuring network attributes of an Ethernet port

Field

Value Range

Description

Port

PORTn or VCTRUNKn

Specifies the PORT or VCTRUNK port. The letter n indicates the number of the port.

Port Attributes

UNI, C-Aware, S-Aware

NOTE:

The value ranges of the parameters are different from each other for different boards and products.

The Port Attributes (Ethernet Port) parameter specifies the position of a port in the network. Different port attributes support different packets.

Value description:
  • UNI: Indicates the interface between CE and PE. This port processes the packets with TAG attributes specified in IEEE 802.1Q. Moreover, this port identifies and processes the VLAN IDs of the received packets according to the supported Tag Aware, Access or Hybrid.
  • C-Aware: A C-Aware (C-VLAN Aware) port in the network is located in the position as the UNI port at the client access side. This port identifies and processes the VLAN (C-VLAN) in the packets. If the value of QinQ TYPE is valid, this port treats the outer labels of the packets as C-VLAN.
  • S-Aware: A S-Aware (S-VLAN Aware) port in the network is located in the position as the interface on the network side. This port identifies and processes the VLAN (S-VLAN) in the packets. If the value of QinQ TYPE is valid, this port treats the outer labels of the packets as S-VLAN.
Recommendations:

The port attribute depends on the port position in the network and the service. For this reason, select a proper port attribute as required. Generally, select the default value.

  • For the MPLS service, select P for the port that transmits or receives packets with MPLS labels.
  • For the QinQ service, select C-Aware or S-Aware for the port. Connecting to the port of the client network, a C-Aware port identifies and processes the packets with C-VLAN labels. Connecting to the port at the network side, an S-Aware port identifies and processes the packets with S-VLAN tags. The configuration examples are described as follows:
    • Add the S-VLAN tag to the service from Port A to Port B, and remove the S-VLAN tag from the service from Port B to Port A. Then select C-Aware for Port A, and S-Aware for Port B.
    • Configure a service from Port A to Port B to transparently transmit the C-VLAN tags at the client side. Then select C-Aware for Ports A and B.
    • Configure a service from Port A to Port B to transparently transmit the S-VALN tags at the network side. Then select S-Aware for Ports A and B.
    • Configure a service from Port A to Port B to switch the C-VLAN tags at the client side. Then select C-Aware for Ports A and B.
    • Configure a service from Port A to Port B to switch the S-VALN tags at the network side. Then select S-Aware for Ports A and B.

Advanced Attributes

This topic describes the parameters, such as the loop detection, loop port shutdown, and traffic threshold (Mbit/s), which are used for configuring the advanced attributes of an Ethernet port.

Table 2-187 lists the parameters that are used for configuring the advanced attributes of an Ethernet port.

Table 2-187  Parameters for configuring the advanced attributes of an Ethernet port

Field

Value Range

Description

Port

PORTn

Indicates the PORT. The letter n indicates the number of the PORT port.

Transmitting Rate (kbit/s) For example: 0 Indicates the Transmitting Rate.
Receiving Rate (kbit/s) For example: 0 Indicates the Receiving Rate.
Broadcast Packet Suppression

Enabled, Disabled

Default value: Disabled

The Broadcast Packet Suppression (Ethernet Interface Attributes) parameter specifies whether to enable the function for a port to suppress the broadcast packets and to control the traffic of the broadcast data packets that enter the port. If the broadcast packet suppression function is enabled, and if the broadcast traffic exceeds the specified threshold value, the broadcast packets that enter the port are discarded.

Impact on the System:

If Broadcast Packet Suppression is set to Enabled, the port can effectively suppress the traffic of the broadcast packets by using the statistic function of the network processor on the board.

Recommendations:

You can set this parameter according to whether to control the traffic of the broadcast packets.

Broadcast Packet Suppression Threshold

10%-100%

Default value: 30%

The Broadcast Packet Suppression Threshold(Ethernet Interface Attributes) parameter allocates the specified bandwidth to the broadcast packets. The bandwidth is allocated on the basis of the traffic proportion at the port. If the bandwidth allocated to the broadcast packets reaches the specified threshold, the port discards the broadcast data packets that are received.

Impact on the System:
  • If less bandwidth is allocated to the broadcast packets, some necessary broadcast services are affected.
  • If excessive bandwidth is allocated to the broadcast packets, excessive broadcast packets may enter the network. Consequently, the network running is affected.
Recommendations:

Generally, adopt the default value.

Traffic Threshold(Mbit/s)

0-100 (FE), 0-1000 (GE), in step length of 1

Default value: 100 (FE), 1000 (GE)

The Traffic Threshold(Mbit/s) (External Ethernet Port Attribute) parameter specifies the data flow threshold at external physical ports.

Impact on the System:

If the data flow at external physical ports is greater than the specified threshold, the FLOW_OVER alarm is generated.

Recommendations:

Generally, select the value according to the bandwidth.

Port Traffic Threshold Time Window(Min)

0-30

Default value: 0

The Port Traffic Threshold Time Window(Min) parameter specifies the duration for a VCTRUNK or a IP port to monitor the traffic after the zero traffic monitoring function of the port is enabled.

Impact on the System:

If the value of this parameter is too large, the port may fail to report the zero traffic alarm. If the value of this parameter is too small, the jitter due to the zero traffic alarm may occur on the port.

Recommendations:

The user can set this parameter according to the actual service requirement.

Loop Detection

Enabled, Disabled

Default value: Disabled

The Loop Detection (Ethernet Port Attribute) parameter specifies the function of reporting the self-loop alarms after one of the following loopback cases is detected.

  • For the external physical interface of the board, the transmit direction is connected to the receive direction by a fiber.
  • The two external physical ports on the board are cross-connected to each other through fibers.
  • The cross-connection is created on the same VCTRUNK of the board.
  • The cross-connection is created between different VCTRUNKs of the board.
Impact on the System:

After the self-loop check function is enabled for a port, the specified self-loop check packets are transmitted from the port. One packet is transmitted each second.

Recommendations:

To check the self-loop port, select Enabled.

Association with other parameters:

The loop port shut-down function takes effect only after the loop check function is enabled.

Loop Port Shutdown

Enabled, Disabled

Default value: Enabled

The Loop Port Shutdown (Ethernet Port Attribute) parameter is set to disable the self-loop port after a self-loop port is detected if the loop port shutdown function is enabled. After the self-loop port is shut down, the self-loop port only transmits or receives the self-loop detection packets rather than any other packets. If the port is not a self-loop port, it starts to work again.

Impact on the System:

If a port enables the loop port shut-down function, the IEEE 802.3ah protocol blocks the port once the port is detected to be a self-loop port. In this case, the services at the port are interrupted. All the packets based on the upper-level protocol are discarded.

Recommendations:

To block a self-loop port, select Enabled. Otherwise, select Disabled.

Association with other parameters:

The loop port shutdown function takes effect only after the IEEE 802.3ah protocol and the loop detection function are enabled.

TAG Attributes

Tag attributes are important attributes for configuring Ethernet services, including the parameters such as the default VLAN ID, VLAN priority, ingress detection setting, and tag ID.

Table 2-188 lists the parameters for configuring the tag attributes of an Ethernet port.

Table 2-188  Parameters for configuring the tag attributes of an Ethernet port

Field

Value Range

Description

Port

PORTn or VCTRUNKn

Specifies the PORT or VCTRUNK port. The letter n indicates the number of the port.

Tag Identifier

Access, Tag Aware, Hybrid

Default value: Tag Aware

The Tag Identifier parameter ndicates that the Ethernet port supports IEEE 802.1Q Ethernet packets that contain VLAN tags. You can set three attributes to differentiate the packets from each other so that these packets can be transmitted efficiently.

Value description:
  • Access: A port receives only the packets that do not contain VLAN tags. After receiving the packets, the port adds the default VLAN tag (PVID) to these packets. When the packets are transmitted from the port, the VLAN tags are stripped off the packets.
  • Tag Aware: A port receives only the packets that contain VLAN tags and discards the packets that do not contain VLAN tags. When the packets are transmitted from the port, they are directly forwarded to the next port.
  • Hybrid: A port can receive all the packets regardless of VLAN tags. After receiving the packets that do not contain VLAN tags, the port adds the default VLAN tag (PVID) to these packets. When the packets are transmitted from the hybrid port, the egress port determines whether the VLAN tags contained in the packets are the same as the PVID. If yes, the egress port strips the VLAN tags off the packets and then forwards these packets. Otherwise, the egress port directly forwards these packets.
Recommendations:

The tag attributes are configured for MAC ports and VCTRUNK ports. Hence, the VCTRUNK ports at both ends of the trunk link can be configured with the tag attributes. In the case of a link, the services are available only when the parameters of the tag attributes are the same for the VCTRUNK ports on the source and sink ports. No requirements are proposed for the tag attributes of MAC ports.

Association with other parameters:
  • If Tag is set to Access for a port, packets without VLAN IDs are added with the default VLAN IDs when they enter the port. After these packets are transmitted from the port, their VLAN IDs are peeled off.
  • If Tag is set to Hybrid for a port, packets without VLAN IDs are added with the default VLAN IDs when they enter the port. After these packets are transmitted from the port, the VLAN IDs are peeled off if they are the same as the default VLAN IDs. Otherwise, these packets are directly transmitted.
  • If Tag is set to Tag Aware for a port, packets without VLAN IDs are discarded before they enter the port. Otherwise, these packets are directly transmitted.
  • For C-Aware and S-Aware ports, the tag attribute cannot be set.

Table 2-189 lists the mapping relationship between the packets handled by the port and the tag identifiers.

Default VLAN ID

1-4094

Default value: 1

The Default VLAN ID (Ethernet Port Attribute) parameter specifies the default VLAN ID of a port.

Recommendations:

Allocate the default VLAN ID according to the networking plan of the service carrier.

Association with other parameters:
  • If Tag is set to Access for a port, packets without VLAN IDs are added with the default VLAN IDs when they enter the port. After these packets are transmitted from the port, their VLAN IDs are peeled off.
  • If Tag is set to Hybrid for a port, packets without VLAN IDs are added with the default VLAN IDs when they enter the port. After these packets are transmitted from the port, the VLAN IDs are peeled off if they are the same as the default VLAN IDs. Otherwise, these packets are directly transmitted.
  • If Tag is set to Tag Aware for a port, packets without VLAN IDs are discarded before they enter the port. Otherwise, these packets are directly transmitted.
VLAN Priority

0-7

Default value: 0

The VLAN Priority (Ethernet Port Attribute) parameter specifies the priority of the default VLAN ID of a port. It indicates the priority of the service quality.

Recommendations:

Set the VLAN priority according to the service requirements and the allocation of the service carrier.

Entry Detection

Enabled, Disabled

Default value: Enabled

The Entry Detection (Ethernet Port Attribute) parameter specifies whether to identify the tag labels in the data packets.

The entry detection function can be disabled in the port-based services only. If the entry detection function is disabled, you may fail to configure other VLAN-based services.

Value description:
  • Enabled: The port checks the Tag label. In this case, the Tag attribute of the port is valid.
  • Disabled: The port does not check the tag label. In this case, the Tag attribute of the port is invalid.
Recommendations:
  • To transmit the data packet transparently, the user can disable the entry detection function.
  • To forward the data packet according to the contents of the data packet, the user can enable the entry detection function.
Table 2-189  Mapping relationship between the packets handled by the port and the tag identifiers
Packet Type Attribute of the Ingress Port Handling Method
Ethernet packets that contain tags Tag aware The port transmits these packets.
Access The port discards these packets.
Hybrid The port transmits these packets.
Ethernet packets that do not contain tags Tag aware The port discards these packets.
Access The port transmits these packets after adding the default VLAN ID to these packets.
Hybrid The port transmits these packets after adding the default VLAN ID to these packets.

Encapsulation/Mapping

The equipment supports the setting of encapsulation and mapping protocols for Ethernet packets, including the parameters such as mapping protocol, scrambling code, and CRC or not.

Table 2-190 lists the parameters that are used for configuring the encapsulation and mapping of an Ethernet port.

Table 2-190  Parameters for configuring the encapsulation and mapping of an Ethernet port

Field

Value Range

Description

Port

VCTRUNKn

Indicates the VCTRUNK port. The letter n indicates the number of the VCTRUNK port.

Mapping Protocol

GFP, LAPS, HDLC

Default value: GFP

The Mapping Protocol parameter specifies the mapping protocol of the VCTRUNK port.

Impact on the System:

The Mapping Protocol parameter of the VCTRUNK is the basic setting of the VCTRUNK port. If the parameter value is different from that of Mapping Protocol for the VCTRUNK of the interconnected equipment, the service is interrupted.

Value description:
  • GFP: Uses the GFP protocol to encapsulate the data of the VCTRUNK port.
  • LAPS: Uses the LAPS protocol to encapsulate the data of the VCTRUNK port.
  • HDLC: Uses the HDLC protocol to encapsulate the data of the VCTRUNK port.
Recommendations:

The value of Mapping Protocol for VCTRUNK of the local equipment must be the same as that of Mapping Protocol for the VCTRUNK of the interconnected equipment.

Scramble

Unscrambled, Scrambling mode[X43+1], Scrambling mode[X48+1]

Default value: Scrambling mode[X43+1]

NOTE:

The OptiX OSN 550 does not support Scramble mode[X48+1].

The Scramble parameter specifies whether to scramble the payload area of the encapsulation protocol and the scramble mode.

Impact on the System:

If the value of Scramble for the VCTRUNK of the local equipment is different from that of Scramble for the VCTRUNK of the interconnected equipment, the service is interrupted.

Value description:
  • Unscrambled: Does not scramble the payload area.
  • Scrambling mode[X43+1]: Scrambles the payload area in [X43+1] mode.
  • Scrambling mode[X48+1]: Scrambles the payload area in [X48+1] mode.
Recommendations:

The value of Scramble for VCTRUNK must be the same as that of Scramble for the VCTRUNK of the interconnected equipment.

Set Inverse Value for CRC

Yes, No

Default value: Yes

The Set Inverse Value for CRC parameter specifies whether to set an inverse value for the CRC field of the HDLC or LAPS protocol.

Impact on the System:

If the value of Set Inverse Value for CRC for the VCTRUNK of the local equipment is different from that of Set Inverse Value for CRC for the VCTRUNK of the interconnected equipment, the service is interrupted.

Value description:
  • Yes: Sets an inverse value for the CRC field.
  • No: Does not set an inverse value for the CRC field.
Recommendations:

The value of Set Inverse Value for CRC for VCTRUNK of the local equipment must be the same as that of Set Inverse Value for CRC for the VCTRUNK of the interconnected equipment.

Association with other parameters:

This parameter takes effect only when Mapping Protocol is set to LAPS or HDLC.

Check Field Length

No, FCS16, FCS32

Default value: FCS32

NOTE:

The value ranges of the parameters are different from each other for different boards and products.

The Check Field Length parameter specifies the length of the CRC field of the mapping protocol.

If Mapping Protocol is set to HDLCor LAPS, and if the value of Check Field Length is different from that for the interconnected VCTRUNKs at the two ends, the service is interrupted.

Value description:
  • No: The protocol frame does not contain the CRC field. Only the GFP protocol supports this option.
  • FCS16: The CRC field of the protocol frame contains 16 bits.
  • FCS32: The CRC field of the protocol frame contains 32 bits.
Recommendations:

If Mapping Protocol is set to HDLC or LAPS, the value of Check Field Length must be consistent for the interconnected VCTRUNKs at the two ends.

Association with other parameters:

If Mapping Protocol is set to HDLC or LAPS, select FCS32 only.

FCS Calculated Bit Sequence

Big endian, Little endian

NOTE:

The value ranges of the parameters are different from each other for different boards and products.

The FCS Calculated Bit Sequence parameter specifies the sequence of storing the bits in the CRC field of the mapping protocol.

If the value of FCS Calculated Bit Sequence for the VCTRUNK of the local equipment is different from that of FCS Calculated Bit Sequence for the VCTRUNK of the interconnected equipment, the service is interrupted.

Value description:
  • Big endian: Stores the FCS field based on Big endian.
  • Little endian: Stores the FCS field based on Little endian.
Recommendations:

The value of FCS Calculated Bit Sequence for the VCTRUNK of the local equipment must the same as that of FCS Calculated Bit Sequence for the VCTRUNK of the interconnected equipment.

Bound Path

This topic describes the parameters, such as available resources, available timeslots, and service direction, which are used for binding a path with an Ethernet port.

Table 2-191 lists the parameters that are used for binding a path.

Table 2-191  Parameters for bound path

Field

Value Range

Description

Configurable Ports

For example: VCTRUNKn

Displays all the available VCTRUNK ports on the board.

Available Resources

For example: VC4-1

Displays all the available VC-4s.

Available Timeslots

For example: VC12-1

Displays all the available timeslots.

VCTRUNK Port

VCTRUNKn

Displays the number (n) of the VCTRUNK port.

Level

For example: VC12-xv

Specifies the level of a path that is bound with the VCTRUNK.

Service Direction

Bidirectional, Uplink, Downlink

Default value: Bidirectional

Specifies the direction of the Ethernet service.

Bound Path

For example: VC4-4-VC12(1-2)

Specifies the number of the path to be bound.

Bound Path Count

For example: 3

Displays the number of VCTRUNKs to be bound.

Used Channel

For example: Uplink:VC4-3-VC3(1-3):3 Downlink:VC4-3-VC3(1-3):3

Displays the actually used channel.

Activation Status

Active, Deactive

Displays whether the path is active.

Display in Combination

-

If you select Display in Combination, the bound paths are displayed in a centralized manner. Otherwise, the bound paths are displayed in a distributed manner.

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Updated: 2019-01-21

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