TS-BTS-SW-0190: SBTS Symptom Saving and Tools Guideline
Tool
Log
Local or Remote log
collection
BTS Mediator log
BTS Mediator log
Yes/Yes
RF log
RF log
Yes/Yes
*) These tools are being prepared for SBTS/SRAN Support
9.1 Essential logs for problem analysis
This chapter introduces how to collect a general set of logs required by Nokia support teams
and R&D and also describes the ways of collecting the configuration data and collecting the
logs created by SBTS base stations in case of a failure (saved into the system module
memory) by WebEM. Also, collection of live system logs with local PC connection is shown in
this chapter.
NOTICE:
After logs collection is finished, the SBTS must be set back to the original
configuration!
All flags and R&D parameters must be set back to the original values.
All configuration files have to be removed from SBTS.
Enabled logging causes additional CPU load, which may affect the SBTS performance.
9.1.1 SRAN BTS Web Element Manager
BTS Web Element Manager is a tool for local or remote SBTS management and can be
accessed in a web browser either on a laptop / PC (recommended) or a mobile device.
Supported browsers are:
Google Chrome
The main use-cases are troubleshooting (also from NetAct) and software and configuration
updates.
Web Element Manager functionality can also be used locally when O&M link to NetAct is not
available. The main management actions from Web Element Manger are:
1. HW/SW status view:
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SW status and version information,
Equipment view,
Site properties,
Synchronization status.
2. Fault/Alarm state view:
active / cancelled
acknowledged / unacknowledged
3. User authentication using centralized user database (CNUM) from NetAct or from the
local user credentials. The NetAct single-sign on support is used when starting Web
Element Manger at the NetAct environment.
4. Snapshot creation / file transfer.
9.1.2 IP setting for local connection with SBTS
In case of local connection with SBTS (Local Maintenance Port -> LMP is used on SBTS), there
is a need to configure the IP settings on PC to establish connection. This is necessary for
many tasks executed during local connection including SBTS Element Manager, FTP/SFTP
connection to system module, various logging.
Figure 1: IP settings for local connection.
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Tip:
If there are some problems with connection or logging, disable all items in the network
card properties but TCP/IPv4.
9.1.3 BTS Web Element Manager connection with SBTS
In order to collect snapshot, open the web browser with following link:
https://192.168.255.129/ or https://192.168.255.1/ for local connection via LMP port of
SBTS
https://<mPlaneIpAddress>/ for remote connection via OAM IP network where
<mPlaneIpAddress> is an IP address of management plane defined in SBTS configuration.
Figure 2: IP address of management plane defined in SBTS configuration
Next, log into BTS Element Manager. The default user name is Nemuadmin and default
password is nemuuser.
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Figure 3: Log-in window to SBTS Element Manager
9.1.4 Snapshot collection
1. Log into BTS Element Manager and select Snapshot from the Diagnostic tab:
Figure 4: Snapshot creation tab in BTS Element Manager
2. Select the snapshot’s coverage.
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All log files – recommended
Most important log files
Figure 5: Creating new snapshot
3. Then, select Save location. The user can choose one of the following locations to save
the snapshot:
remote – the snapshot will be stored on the external server (NetAct or LSS) via
BTSMED. The destination depends on the BTSMED configuration:
<managedObject class="com.nokia.btsmed:TRBLCADM" version=”xxx"
operation="update" distName="/BTSMED-1/TRBLCADM-1">
<p name="trblSnapDestination">netact</p> or
<pname="trblSnapDestination">lss</p>
local – just after its creation, the snapshot will be stored in the local drive of the PC
connected to the SBTS with BTS Element Manager.
additionally, collect snapshots for LTE cells.
4. In the Reason field, details about this snapshot collection can be inserted.
5. Next, press the Collect snapshot button to start saving the snapshot.
In case SBTS Element Manger is crashed, then in order to take snapshot it is necessary to
connect to the SBTS via SSH and execute the following set of commands:
telnet 192.168.255.129 15007
log -a -z Snapshot.zip
6. The snapshot file will be created in /tmp/ by default.
7. Now, upload the file Snapshot.zip with FTP/SFTP client to the local PC.
8. Afterwards, remove all files in SBTS with the command rm -r /tmp/Snapshot.zip
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