2+2 XPIC swap to 4+0 guide

8/10/2019 2+2 XPIC swap to 4+0 guide

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2+2 swap to 4+0 guide


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2+2 swap to 4+0 guide Internal Use Only

ZTE Confidential Proprietary 2013 ZTE CORPORATION. All rights reserved. I

TABLE OF CONTENTS

1 Introduce ........................................................................................................... II

2 The preparation for cutover ........................................................................ III

3 The operation of the specific ....................................................................... III3.1 Protection mode ................................................................................................ III3.2 Frequency ......................................................................................................... IV3.3 Hybrid Reversal .................................................................................................. V3.4 Switch Configuration ....................................................................................... VIII

3.5

NMS Connection

............................................................................................. VIII3.5.1 Near End Connection ...................................................................................... VIII3.5.2 Far End Connection .......................................................................................... IX3.5.3 Microwave Configuration ................................................................................... IX

4 After Cutover .................................................................................................. XI4.1 Check the IDU panel alarm ............................................................................... XI4.2 Check BTS Information .................................................................................... XII4.3 Check the performance report ......................................................................... XII4.3.1 Check the Aggregate PM Report ..................................................................... XII4.3.2 Check the Signal Level ................................................................................... XIII4.3.3 Check the MSE ............................................................................................... XIII

4.3.4

Check the XPI

................................................................................................. XIV

5 Rollback Plan ................................................................................................ XIV


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1 Introduce

4+0 configuration with S340 is actually 2*(2+0) XPIC in a nodal. Four IDUs are

installed in two enclosures, two IDUs in main enclosure build a 2+0 XPIC, and other

two IDUs in expansion enclosure building another 2+0 XPIC.

Now we need reuse the 2+2 XPIC material, we can use the two main enclosures

build two 2+0 XPIC links!

This configuration guide describes the procedures to make a 2+0 XPCI terminal

working in one enclosure, repeat the same procedures for the IDUs in another

enclosure. The following procedures are related to link configuration, other setting,

link general information, and so on.

The following is the 2+2 to 4+0 manual guide.


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2 The preparation for cutover

(1) The preparation of the tools and instrumentation, software version and system

network scheme, etc.

(2) Check IF cable with corresponding labels! In order to make a distinction between

polarization and ODU!

(3) Telnet the IDU, take the capture about the license, protection mode,

MRMC,RSL,XPD,MSE and so on .In order to make sure reach the KPI after the

cutover to the 4+0.

(4) Telnet the IDU, check the IP and remark, use the same ip after cutover.

3 The operation of the specific

3.1 Protection mode

(1)Change two IDUs protection mode in the standby enclosure to disable, and then

change the two IDUs protection mode in the main enclosure to disable. Next step,

remove the protection cable.

2+2 XPIC Protection Configuration


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4+0 Protection Configuration

3.2 Frequency

(1)Change the standby enclosure IDU V and H frequency to the other frequency

which is scanning frequency result! 2+2 link use the one pair frequency and

4+0(2*(2+0)) use the two pairs frequency.

2+2 XPIC frequency


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4+0 frequency

3.3 Hybr id Reversal

In order to guarantee same loss, we need to reversal the Hybrid. We can move one

site the IF cable in main enclosure1 to the main enclosure2. Next step, move the IF

cable in main enclosure2 to the main enclosure1. Please find the following picture

about the 2+2 XPCI and 4+0.

2+2 Connection Chart


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4+0 Connection Chart

The following chart is the whole chart which 2+2 cutover to 4+0 scheme. All Carriers are working as

transparent channels. Four carries are connected to ZTE switching individually. Layer 2 aggregation is

done on ZTE switch for 4+0 protection.


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3.4 Switch Configuration

The 4+0 switch mode use the single pipe same as the 2+2 switch mode. No need to

change the switch mode.

3.5 NMS Connection

3.5.1 Near End Connect ion

In 4+0 mode, the connection is shown.


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3.5.2 Far End Connect ion

In 4+0 mode, the connection is shown.

3.5.3 Microwave Configuration

The configuration of both site is the same.

3.5.3.1 Management Ports

The path of management ports is shown.


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3.5.3.3 Switch Configuration

Additional Ethernet port is needed in the near end site for EMS.

The configuration is shown.

Auto-negotiation: OFF

Speed: 100M

Duplex: Full

Mode: Access

4 After Cutover

4.1 Check the IDU panel alarm

After cutover, you need to check the IDU alarm in the panel , make sure no critical

alarm, if have alarm in the IDU panel, please find the reason and clear the alarm.


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4.2 Check BTS Information

After cutover, we guarantee the BTS is up. Please call the BSC guys to check the site

status.

4.3 Check the perfo rmance repor t

After cutover, please check the Aggregate PM report and signal level and MSE and XPI,

All the performance need reach the KPI.

4.3.1 Check the Aggregate PM Report


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4.3.4 Check the XPI

5 Rollback Plan

Any upgrade failed, we will rollback to 2+2 link to ensure BTS still can works

normally. Then we will analyze the reason.

2+2 XPIC swap to 4+0 guide

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