04-chapter 4 configuring ethernet transparent transmission services

OptiX Metro 500 Configuration Guide Contents

Huawei Technologies Proprietary

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Contents

4 Configuring Ethernet Transparent Transmission Services............................................4-1 4.1 Overview ................................................................................................................................... 4-1

4.1.1 Working Mode of the PORT Port ..................................................................................... 4-1

4.1.2 VCTRUNK........................................................................................................................ 4-2

4.1.3 LCAS................................................................................................................................ 4-2

4.1.4 Encapsulation Protocol .................................................................................................... 4-2

4.1.5 Test Frame ....................................................................................................................... 4-2

4.2 Configuring Ethernet Services .................................................................................................. 4-3

4.2.1 Service Requirement ....................................................................................................... 4-3

4.2.2 Service Planning .............................................................................................................. 4-4

4.2.3 Configuration Process...................................................................................................... 4-5

OptiX Metro 500 Configuration Guide Figures


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Figures

Figure 4-1 LCAS function 4-2

Figure 4-2 Test frames 4-3

Figure 4-3 Ethernet transparent transmission service example 4-4

Figure 4-4 NE board information 4-4

Figure 4-5 SDH timeslot allocation diagram 4-5

OptiX Metro 500 Configuration Guide Tables


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Tables

Table 4-1 Ethernet service connection 4-4

Table 4-2 Configuration process 4-6

OptiX Metro 500 Configuration Guide

4 Configuring Ethernet Transparent Transmission Services


4-1


This chapter describes how to configure Ethernet transparent transmission services on the OptiX iManager T2000. It contains the following sections: Overview Configuring Ethernet Service

4.1 Overview The EFT and ET1D boards of the OptiX Metro 500 support Ethernet transparent transmission. This chapter describes the EFT board only. An EFT has four PORT ports. Each PORT corresponds to a VCTRUNK. You need to acquire some basic knowledge of the following concepts before service configuration.

Note: The EFT board of the OptiX Metro 500 is also applicable to the OptiX 155622H(Metro1000).

4.1.1 Working Mode of the PORT Port

The PORT port of the EFT can be set to three working modes: 10M full-duplex 100M full-duplex Auto-negotiation. The working mode of the PORT of the EFT must be consistent with that of the interconnected PORT. The PORT of the EFT cannot be set to auto-negotiation if the




4-2

opposite end does not support this mode. 4.1.2 VCTRUNK

VCTRUNK is the transmission channel. A VCTRUNK can be bound with 1 to 63 VC-12s or VC-3s. An EFT has four PORT ports. Each PORT corresponds to a VCTRUNK.

4.1.3 LCAS

The EFT board supports link capacity adjustment scheme (LCAS). As shown in Figure 4-1, VCTRUNK1 is bound with four VC-12s, two transmitted over trail 1 and two over trail 2. If the VC-12 in trail 1 malfunctions, the two VC-12s in trail 2 transmit all Ethernet services. This is how LCAS works. You can enable the LCAS function as required at the NM side.

Router BRouter A NE1NE2

VCTRUNK1

Trail 1

Trail 2

Figure 4-1 LCAS function

4.1.4 Encapsulation Protocol

The EFT supports three encapsulation protocols as follows: GFP LAPS HDLC Note the encapsulation protocol across the network must be consistent when the EFT is configured.

4.1.5 Test Frame

The EFT board supports test frames to test the link at SDH side and to locate faults. As shown in Figure 4-2, if the Ethernet service between Router A and Router B fails, send test frames between NE1 and NE2 to see if there is any fault between them. NE1 sends test frames to NE2 and NE2 responds upon receiving the test frame. Thus, NE1 can judge whether there is a fault between NE1 and NE2.




4-3

Router BRouter A

NE1 NE2 NE3Test frame

Response frame

Figure 4-2 Test frames

Whether to send test frames, the transmitting mode and the number to be sent can be set. There are three transmitting modes as follows: Continue: Test frames are sent continuously, about once every 1ms. Burst: The number can be set and the interval is about 1ms. Not enabled: The transmission of test frames stops. The bandwidth of test frames can be omitted.

4.2 Configuring Ethernet Services 4.2.1 Service Requirement

A non-protection chain is required, as shown in Figure 4-3. There are two companies A and B. Branch 1 (A1) and branch 2 (A2) of A communicate with each other over a 48 Mbit/s bandwidth; branch 1 (B1) and branch 2 (B2) of B communicate with each other over 8 Mbit/s bandwidth.




4-4

Transport network1

48M

42M

A Branch 1

:OptiX Metro 500

:Switch

:Service connection

NE3NE2

NE1

B Branch 1

A Branch 2 B Branch 2

Figure 4-3 Ethernet transparent transmission service example

Prepare the following as required. NE board information Ethernet service connection table SDH timeslot allocation diagram

4.2.2 Service Planning

1. NE Board Configuration For the board configuration of each NE, see Figure 4-4.

SCC STG XC SL1D PL1D EFT

NE1

SCC STG XC SL1D PL1D

NE2

SCC STG XC SL1D PL1D

NE3

EFT

EFT

Figure 4-4 NE board information

2. Ethernet Service Connection Table There is Ethernet service between A1 in NE1 and A2 in NE2, and between B1 in NE1 and B2 in NE2. For the Ethernet service connection, refer to Table 4-1. Table 4-1 Ethernet service connection

Service A1A2 B1B2

Source NE NE1 NE1




4-5

Service A1A2 B1B2

Source board-port 6-EFT-1 6-EFT-2

Occupied timeslot VC4-1:VC3-1 VC4-2:VC12-1 to VC12-4

Port working mode Autosensing Autosensing

Number of bound VC-12s 1 4

LCAS Enabled Enabled

Encapsulation protocol GFP GFP

Sink NE NE2 NE3

Sink board-port 6-EFT-1 6-EFT-1

Note: The EFT supports a bandwidth of at most two VC-4s at the SDH side. The first VC-4 only supports VC-3 virtual concatenation, and the second VC4 supports the virtual concatenation of VC-12 or VC-3. Thus the board supports at most six VC-3s, or three VC-3s and 63 VC-12s. The second VC-4 can be configured as the virtual concatenation of either VC-12 or VC-3.

3. SDH Timeslot Allocation Diagram Figure 4-5 shows the timeslot allocation diagram of Ethernet services on the SDH network.

TimeslotNE 2NE NE 1 NE 3

VC12 : 1-4

4-SL1D-24-SL1D-1 4-SL1D-24-SL1D-1VC3 : 1

t6:VC4-2:VC12-1 VC12-2 VC12-3 VC12-4

t6:VC4-1:VC3-1

t6:VC4-2:VC12-1 VC12-2 VC12-3 VC12-4

t6:VC4-1:VC3-1

Figure 4-5 SDH timeslot allocation diagram

4.2.3 Configuration Process

Table 4-2 lists the procedure to configure Ethernet transparent transmission service on T2000.




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Table 4-2 Configuration process

Stage Description

1 Creating a Board

2 Configuring an Ethernet Interface

3 Configuring SDH Service

4 Configuring Ethernet Test List

Note To create NE and SDH network on the T2000, refer to chapter 1.

This section takes NE1 as an example to illustrate how to configure Ethernet services. The configuration process of NE2 and NE3 is almost the same as that of NE1.

1. Creating a Board Step Action

1 In the Main Topology, double-click the NE1 icon to display the NE Panel.

2 Right-click the slot 6 and select Add EFT from the board list. Click Close.

Click to close the NE panel.

3 Repeat steps 1 and 2 to configure the EFT for NE2 and NE3.

2. Configuring an Ethernet Interface

Note The working mode of the PORT of the EFT must be consistent with that of the interconnected PORT. The PORT of the EFT cannot be set to auto-negotiation if the opposite end does not support this mode.

Configure the Ethernet interface referring to Table 4-1.

Step Action

1 In the Main Topology, right-click the NE1 icon and select NE Explorer.

2 In the NE Explorer, select the 6-EFT board of NE1.

3 In the Function Tree, choose Configuration > Ethernet Interface Management > Ethernet Interface.




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Step Action

4 Select Internal Port. Click the Encapsulation/Mapping tab. Configure the attributes of VCTRUNK1 and VCTRUNK2 according to Table 4-1. y Mapping Protocol: GFP. It must be consistent with the opposite end. For other parameters, use the default values. Click Apply.

5 Click the LCAS tab and enable LCAS. y Enabling LCAS: Enabled. Click Apply.

6 Click the Bound Path tab. Click Configuration, the Bound Path Configuration dialog box is displayed.

7 Configure the bound path of company A in this dialog box. y Configurable Ports: VCTRUNK1. y Level: VC3-xv. y Direction: Bidirectional. y Available Resources: VC4-1. y Available Timeslots: VC3-1. Click , and the configured bound path is listed in the Selected Bound Paths pane. Click Apply.




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Step Action

8 Configure the bound path from B1 to B2 in this dialog box. y Configurable Ports: VCTRUNK2. y Level: VC-12-xv. y Direction: Bidirectional. y Available Resources: VC4-2. y Available Timeslots: VC12-1 to VC12-4. Click , and the configured bound path is listed in the Selected Bound Paths pane. Click OK.

9 In the Ethernet Interface window, select External Port.

10 Click the Basic Attributes tab and set the parameters of MAC1 and MAC2 according to Table 4-1. y Enabled/Disabled: Enabled. y Working Mode: Auto-Negotiation. If both ends support auto-negotiation, set the

working mode to auto-negotiation. Otherwise, set the working mode the same with that of the opposite end. y Maximum Packet Length: 1522 For other parameters, use the default values. Click Apply.

3. Configuring SDH Service Refer to Figure 4-5, and configure the SDH service of NE1.

Step Action

1 Select NE1 in the NE Explorer.

2 In the Function Tree, choose Configuration > SDH Service Configuration.

3 Click Create to set the following parameters in the Create SDH Service dialog box: y Level: VC3. y Direction: Bidirectional. y Source Slot: 6-EFT-1(SDH-1). y Source VC4: VC4-1. y Source Timeslot Range: 1. y Sink Slot: 4-SL1D-2(SDH-2). y Sink VC4: VC4-1. y Sink Timeslot Range: 1. y Activate Immediately: Yes. Click Apply.




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Step Action

4 Set the following parameters in the Create SDH Service dialog box: y Level: VC12. y Direction: Bidirectional. y Source Slot: 6-EFT-1(SDH-1). y Source VC4: VC4-2. y Source Timeslot Range: 14. y Sink Slot: 4-SL1D-1(SDH-1). y Sink VC4: VC4-1. y Sink Timeslot Range: 14. y Activate Immediately: Yes. Click OK.

4. Configuring Ethernet Test List Step Action

1 In the NE Explorer, select the 6-EFT board of NE1.

2 In the Function Tree, choose Configuration > Ethernet Maintenance > Ethernet Test.

3 Set parameters in the Ethernet test list. y Send: In the Continue mode, test frames are sent continuously, about once

every 1s. In the Burst mode, the transmitting time can be set and the interval is about 1s. In the Not enabled mode, the transmission of test frames stops.y Send Direction: SDH Direction. y Frames to send: 0255. "20" is recommended. Click Apply.

4 Configuring Ethernet Transparent Transmission Services4.1 Overview4.1.1 Working Mode of the PORT Port4.1.2 VCTRUNK4.1.3 LCAS4.1.4 Encapsulation Protocol4.1.5 Test Frame

4.2 Configuring Ethernet Services4.2.1 Service Requirement4.2.2 Service Planning4.2.3 Configuration Process

04-chapter 4 configuring ethernet transparent transmission services

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