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8/10/2019 2+2 XPIC swap to 4+0 guide
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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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Managements Ports Configuration
3.5.3.2 Wayside
The path of wayside and configuration is shown in below!
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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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4.3.2 Check the Signal Level
4.3.3 Check the MSE
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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.
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