Relevant Materials
Chapter 3 EVPL Service Configuration using Station by Station Method (VCTRUNK Shared)
3.1 Laboratory Network Topology Introduction
The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500.
The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and
#12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12.
One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.
Network Elements Ethernet board slot number
NE A #5
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3.2 Service Requirements
Branch H1 of company H and branch G1 of Company G are both located at NE A. While branch H2 of company H and branch G2 of company G are both located at NE B. Both companies needed an Ethernet service of bandwidth of 6Mbits/s to communicate with each other.
The services of company H need to be isolated from the services of company G. Traffic of company H and G, however, is complementary in terms of bandwidth.
3.3 Parameters Description
The network planning is shown below:
1. EVPL service for Company H between branch H1 and branch H2;
2. EVPL service for Company G between branch G1 and branch G2;
EVPL service for Company H between branch H1 and branch H2:
− Use VC-12 timeslot 1 to 3 of VC-4 number 1 for SDH link between NE A and NE B （VC4-1:VC12:1-3）。
− Use VC-12 timeslot number 1 to 3 of VC-4 number4
（VC4-4:VC12:1-3）of N2 EFS4 board for both NE A and NE B.
Parameters of external Ethernet ports on the Ethernet boards:
Parameters NE A NE B
Board N2EFS4 N2EFS4
Port PORT1 PORT1
Enabled/Disabled Enabled Enabled
Entry Detection Enabled Enabled
TAG Access Access
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Parameters of internal ports on the Ethernet boards:
Parameters NE A NE B
Boards N2EFS4 N2EFS4
Internal Port VCTRUNK1 VCTRUNK1
Bound Path VC4-4:VC12-1~3 VC4-4:VC12-1~3
Entry Detection Enabled Enabled
TAG Tag Aware Tag Aware
Default VLAN ID
Port Type PE PE
EPL Service Parameters (NE A and NE B station parameters):
Parameters EPL service of company H
Board N2EFS4
Service Type EPL
Service Direction Bidirectional
Source Port PORT1
Source Port C-VLAN(e.g.1,3-6)
100
Sink Port VCRTUNK1
Sink C-VLAN (e.g. 1,3-6)
100
EVPL service for Company G between branch G1 and branch G2:
− Use VC-12 timeslot number 4-6 of VC4 number 1 for SDH link between NE A and NE B（VC4-1:VC12:4-6）.
− Use VC-12 timeslot number 4 to 6 of VC-4 number 4
（VC4-4:VC12:4-6）of N2 EFS4 board for both NE A and NE B.
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Parameters of external Ethernet ports on the Ethernet boards:
Parameters NE A NE B
Board N2EFS4 N2EFS4
Port PORT2 PORT2
Enabled/Disabled Enabled Enabled
Entry Detection Enabled Enabled
TAG Access Access
Default VLAN ID 200 200
Port Type PE PE
Parameters of internal ports on the Ethernet boards:
Parameters NE A NE B
Board N2EFS4 N2EFS4
Internal Port VCTRUNK1 VCTRUNK1
Bound Path VC4-4:VC12-1~3 VC4-4:VC12-1~3
Entry Detection Enabled Enabled
TAG Tag Aware Tag Aware
Default VLAN ID
Port Type PE PE
EPL Service Parameters (NE A and NE B station parameters):
Parameters EPL service of company G
Board N2EFS4
Service Type EPL
Service Direction Bidirectional
Source Port PORT2
Source Port C-VLAN(e.g.1,3-6)
200
Sink Port VCTRUNK1
Sink C-VLAN
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3.4 Configuration Procedure
Configuration at NE A
Step 1 Configure Ethernet Port Parameters:
1、Login to U2000 Main Topology.
2、” Right click on NE A to select “NE Explorer”.
3、Select N2EFS4 board from the Board List.
4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.
5、 select “External Port”.
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55 6、The diagram below shows the 4 external port of the Ethernet board, all the ports are disabled by default. Port 1 and Port 2 needs to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and 2 and select “Enabled” as shown below.
After selecting, click the “Apply” button at the right bottom of the panel.
7、Click on the “TAG Attributes” tab, change the TAG to “Access” for Port 1 and Port 2 follow by changing the “Default VLAN ID” to 100 for Port 1 and “VLAN ID” to 200 for Port 2. Click “Apply” button to activate changes.
Step 2 Configure Ethernet Line Service:
1 、 At the Function Tree, select ”Configuration> Ethernet Service>
Ethernet Line Service”.
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56 2、On the panel, select “New” button to create new EVPL service between NE A and NE B for company H. In the Create Ethernet Service configuration panel, select “PORT 1” as Source Port, “VCTRUNK1” as Sink Port and type in 100 for the Source VLAN and Sink VLAN as shown below.
3、At this moment, the “Bound Path” panel is empty. To configure a bound path to VCTRUNK1, click “Configure” button follow by “>>” button for 3 times to bound VC12-1 to 3. Click the “OK” button at the bottom right of the panel and return to the Create Ethernet Line configuration panel.
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57 4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.
5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.
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58 7、Now, configure EVPL service for company G. Click “New” button and select “PORT2” as Source Port , “VCTRUNK1” as Sink Port and type in 200 for the Source VLAN and Sink VLAN as shown below.
8、Finally the Ethernet Line service has been successfully created and the Ethernet service for both company H and G will be displayed in the Ethernet Line panel.
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Step 3 Configure SDH service:
1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE explorer.
2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.
3 、At the SDH Service Configuration panel, click “New” to create cross-connection service for company H and G.
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60 4、At the Create SDH service panel, select the correct information from the options for NE A as shown below. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). Click “OK” . (The “Source Slot” and the “Sink Slot”
position have to be the same as the actual board slot number).
5、The SDH service created will be displayed as shown below.
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61 Configuration at NE B
Step 1 Configure Ethernet Port Parameters:
1、Login to U2000 Main Topology.
2、Right click on NE B to select “NE Explorer”.
3、Select N2EFS4 board from the Board List.
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62 4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface.
5、select “External Port”.
6、The diagram below shows the 4 external port of the Ethernet board, all the ports are disabled by default. Port 1 and Port 2 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and Port 2 and select “Enabled” as shown below.
After selecting, click the “Apply” button at the right bottom of the panel.
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63 7、Click on the “TAG Attributes” tab, change the TAG to “Access” for Port 1 and Port 2 follow by changing the “Default VLAN ID” to 100 for Port 1 and
“VLAN ID” to 200 for Port 2. Click “Apply” button to activate changes.
Step 2 Configure Ethernet Line Service:
1 、At the Function Tree, select ”Configuration> Ethernet Service>
Ethernet Line Service”.
2、To create a new Ethernet Line service for company H, click “New” and select PORT 1 as Source Port and VCTRUNK1 as Sink Port. Type “100”
as the Source and Sink VLAN ID.
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64 3、Click the “Configure” button to bound VC12:1-3 into VCTRUNK1 by clicking the “>>” button 3 times. Click “OK” when done.
4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.
5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.
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65 6、Now create a new Ethernet Line service for company G. Click “New”
again at the Create Ethernet Line service panel. (As both company H and G are sharing the same VCTRUNK1, therefore there is no need to bound path for company G again).
7、Finally the Ethernet Line service has been successfully created and the Ethernet service will be displayed in the Ethernet Line panel .
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Step 3 Configure SDH service:
1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE B” at the NE Explorer.
2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.
3、Click “Create” button to create a new SDH service.
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67 4、At the Create SDH service panel, select the correct information from the options as according to the diagram below. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). Click “OK” when done.
4、 The newly created SDH service will be shown on the panel as follow.
3.5 Test Service Configuration
When all the configuration has been completed, the configurations have to be tested to make sure it works.
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68 In order for us to test for the Ethernet service configuration for company H, two PCs are needed. Each PC is connected to port 1 of NE A and NE B. In the command prompt, use the “ping” command to test whether the services are configured successfully.
PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the
“ping” test in this case. The results below show the EPL service is working normally.
Next, test the Ethernet service configuration for company G by connecting two PCs to Port2 at NE A and NE B each. The method is same as of testing
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