Radwin AMWL1250 Users Manual

Chapter 5

Diagnostics and Troubleshooting

This chapter describes the WinLink 1000 diagnostic functions, which include:

• Get Link Information

• Monitoring Performance

• Error detection and alarms including Link Compatibility

• Diagnostic tests (local and remote loopbacks on E1 or T1 link)

• Troubleshooting

• Frequently asked questions.

5.1 Automatic Link Data Collection (Get Link

Information)

The Get Link Information feature collects all the link and Manager information which can be used for diagnostics.

In the event of needing to contact technical support please send this file so as to speed up the assistance.

To get link information

1. Click Help on the menu bar, select Link Information.

The Get Link Information dialog box appears. See

2. Select or deselect the data options. If the file is to be sent to

Technical Support leave all options checked.

3. Click File Path to get to the directory to save the file in.

4. Click Start to save the information.

The file is saved as Link Information.txt

Figure 5-1

Automatic Link Data Collection (Get Link Information) 5-1

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

Figure 5-1. Get Link Information

5.2 Monitoring Performance

WinLink 1000 constantly monitors traffic over the radio link and collects the following statistics data:

• Site 1/Site 2 received traffic rate (in Mbps)

• Site 1/Site 2 received frames rate (in Mbps)

• Radio signal strength (in dBm)

• Error (Blocks).

The statistics (monitor) log and event log can be saved as TXT files. New alarms are automatically added to the text file, as they enter the event log.

Saving the Monitor Log

To save the monitor log:

1. From the Tools menu, choose Preferences.

The Preferences dialog box appears (see

2. Click the Monitor Tab.

3. Select the file to save.

5-2 Monitoring Performance

Figure 5-2

WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

4. Click the check box to open the file for saving.

5. Click the

button and in the Select File dialog box indicate in

which folder and under what name the alarm log file is to be saved.

6. Set the time interval for adding data to the file.

7. Click OK to save the file

Figure 5-2. Preferences Dialog Box, Monitor Tab

Setting the Events Preferences

You can define a color that the traps are displayed in the monitor pane, according to severity of the event. The severity is predefined.

To set the trap color:

1. From the Tools menu, choose Preferences.

The Preferences dialog box appears).

2. Click the Events Tab (see

3. Select the Event priority type and click on the

A color chart opens.

Monitoring Performance 5-3

Figure 5-3

button.

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

4. Select the desired color.

5. Repeat for all the trap types.

To set the trap background color:

• Click Background Color to change the text background.

To reset the trap colors:

• Click Reset Settings to return to the default color settings.

Saving the Events Log

To save the event log:

1. From the Tools menu, choose Preferences.

The Preferences dialog box appears (see

Figure 5-3

2. Click the Events Tab.

3. Select the file to save.

4. Click the check box to open the file for saving.

5. Click the

button and in the Select File dialog box indicate in which folder and under what name the alarm log file is to be saved, and click OK.

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

Figure 5-3. Preferences Dialog Box, Event Log Tab

Monitoring Performance 5-5

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

5.3 Viewing Performance Reports

The Performance Monitor Report displays performance views of each of the interfaces for each of the interfaces (ES, SES, and UAS), as well as Specific data per Interface type (e.g., TX and RX bytes for Ethernet). For the Air Interface, user defined thresholds data are collected. Refer to

Table

5-2

Data is collected and selectively displayed based on three time intervals as selected by the Interval radio buttons:

• Current (t=0)

• 15 minutes Intervals

• Daily.

(see

Figure 5-4

). Several performance data are collected

Table 5-1

and

UAS – This parameter counts the time the air link was not providing any service. There are several potential reasons for this situation; one of the sites has a power failure, high interference, maintenance operation etc.

Radio BBER Threshold – This parameter counts the seconds in which the radio performance is below a user specified threshold. The threshold is measured in percent. The threshold can be set from 0.1% up to 50%. For links with E1/T1 service the recommended value is 1% (system default). Excellent TDM service is expected below the 1% threshold, meaning that for 1% threshold, the expected BBER value should be 0 if there are no problems during the 15 min interval. If the BBER threshold increases some degraded service might be noticed. For links with Ethernet only service, 8% threshold is recommended and not 1% meaning that for 8% threshold, the recommended BBER value should be 0 if there are no problems during the 15 min interval. Since WinLink 1000 provides a loss less Ethernet service, there is throughput degradation in case of interference. The degradation is proportional to the BBER.

Radio RSS Threshold can also be used to indicate problems in the radio channel. After verifying the RSS according to the link budget calculator

Ethernet performance is not collected in PoE systems.

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

during the installation. A value of -5dB from the current RSS is recommended as a threshold.

Figure 5-4. Performance Monitoring Report window

Viewing Performance Reports 5-7

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

Table 5-1. Explanation of performance data

Data type Reported value Explanation

Generic PM Data

UAS – Unavailable Seconds

Seconds in which the interface was out of service.

ES – Error Second The number of

seconds in which there was at least an error block. Note that notation of an error block is different per interface.

SES – Severe Error Second

The number of seconds in which the service quality is low (the actual BBER ratio varies per interface).

BBE – Background Block Error

The number of error block in an interval.

Integrity A flag indicating that

the data is valid. Note that the PM data is not valid if not all the values were stored

Air Interface PM Data

Max RSL The maximum of the

receive signal level (measured in dBm).

Min RSL The minimum of the

receive signal level (measured in dBm).

Max TSL The maximum of the

transmit signal level (measured in dBm)

Possible reasons are: Clock changes within the interval and Power up reset

The transmit power is fixed. The value can be changed only by user

configuration

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

Data type Reported value Explanation

Min TSL The minimum of the

transmit signal level (measured in dBm).

RSL Threshold 1 This parameter counts

the number of seconds in which the RSL is below the specified threshold.

RSL Threshold 2 This parameter counts

the number of seconds in which the RSL is below the specified threshold.

TSL Threshold 1 This parameter counts

the number of seconds in which the RSL is above the specified threshold.

Ethernet Interface PM Data

BBER Threshold The BBER Threshold

value counts the number of seconds in which the Background Block Error Ratio (BBER) exceeds the specified threshold. Note, that the system is design for excellent quality of service with BBER of less then 1%. (at 1% BBER expected TDM BER is less than 1E-6.

Received Bytes The number of Mega

bytes received in the specified port within the interval

Viewing Performance Reports 5-9

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

Data type Reported value Explanation

Transmitted Bytes The number of Mega

bytes received in the specified port within the interval.

Table 5-2. Action of the tool bar button commands

Button Action

Get Data Uploads the selected report from the ODU.

Save Saves the data in a CSV or Text format for additional analysis.

Clear Removes the current data from the window.

Selection pane Selects the site, interface, and interval to be displayed.

Threshold

Close Closes the Performance Monitor Report window.

Opens the threshold configuration dialog box (Figure

set the Air Interface thresholds. Note that threshold change is effected immediately, but it does not change any historical data.

Figure 5-5. Threshold configuration dialog box

5-5) to

5.4 Error Detection and Alarms

WinLink 1000 detects compatibility problems, fault conditions of the radio or user links, and initiates alarms to alert the user.

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

To store the Event Log, first define the IP address, subnet mask, default gateway and trap address of the management PC, see

for details.

Chapter

Alarms (traps) are displayed in the Event Log in the lower panel of the Main Menu screen. The event log may be saved as a TXT file.

The event log includes the following fields:

• Sequential number (ID)

• Date and time stamp

• Message

• Trap source

• IP address of the ODU that initiated alarm.

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Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

Table 5-3. WinLink 1000 Alarms and Information Messages

Message Description

Radio Link – Sync Radio link is synchronized

Radio Link – Out Of Sync Radio link lost synchronization

Link Has Been Reset ODU was reset due to internal problem

TDM Interface – Normal TDM interface is operating properly

TDM Interface – LOS Loss of Synchronization is reported by TDM interface

TDM Interface – LOS

TDM Interface – AIS

TDM Interface – Loopback

Link Resetting Wireless link reset from the management station. This

Local ODU Resetting The local ODU reset from the management station.

Monitor was stopped since no connection to the link

TDM Service – Normal

TDM Service – Alarm Error has been detected on a TDM line

Configuration problem detected The link needs to be reinstalled

Channel Scanning in progress The ODU is scanning the channels for the remote ODU

Transmitting on <frequency> GHz

Radar activity was detected in <site>, on channel <frequency> GHz

Loss of Signal is reported by TDM interface

Alarm Indication Signal is reported by TDM interface

A loopback is active on TDM interface

alarm is caused by automatic reset after link configuration.

No ODU-to-IDU traffic was detected during the last 20 minutes.

TDM service is operating properly

The ODU is transmitting on the frequency channel listed

For DFS versions only. Radar is detected; the channel is prohibited for 30 minutes.

Monitoring fo Radar activity on channel <frequency> GHz

Bit Failed indication Indicates ODU hardware problem. Send error code to

Link Status Indicates incorrect connection or incompatibility between

Site Status Indicates incorrect connection or operation at the site.

For DFS versions only. ODU is looking for Radar activity.

Technical Support.

versions. Available in 1.620 versions and above.

Available in 1.620 versions and above.

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

To view summary of saved alarms

• From the Tools menu, choose Active Alarm Summary.

The Active Alarms Summary window opens. See

Table 5-4

; for

an explanation of the command buttons.

Figure 5-6. Active Alarms Summary

Table

Command Action

Save Saves the alarms in CSV or text format for further

Refresh Reads the alarms from the ODU, and displays the

Site Selects site for the active alarms.

Error Detection and Alarms 5-13

5-4. Active Alarms command buttons

analysis.

alarms.

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

Close Closes the active alarm window.

5.5 Remote Power Fail Indication

Remote power fail indication indicates to one side that the other side has had a power failure. The failed site sends a final trap indication about the power loss just before powering off.

A Dying-Gasp circuit identifies the power failure at a minimum interval of 20 milliseconds before the IDU crash, during that interval a message notifying the power failure is sent to the remote end.

Alarm output number 4 indicates link loss due to power failure at the remote end.

5.6 Link Compatibility

WinLink 1000 indicates the version compatibility via software traps. As new hardware is added to existing networks compatibility issues may arise. An incompatibility issue is indicated to the user via a change of color of the Link Status box on the Main Menu screen. Trap messages in the Event Log indicate the problems or limitations and suggest upgrades when appropriate.

The following Link Status messages are given:

fullCompatibility - different software versions that are fully compatible.

Message indicates that upgrade is available.

restrictedCompatibility - different software versions that operate

correctly. However, new features are not supported

softwareUpgradeRequired - different software versions with limited

operation. The link will operate as Ethernet only; a full service will not be available. The message is software upgrade required.

versionsIncompatibility - different software versions that are not

compatible. User needs to perform local upgrades.

Table 5-5. Link Compatibility Trap Messages

Link State Link Link Status Site Description Site Link Status

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

State Text

fullCompatibility Active Green SW

restrictedCompatibility Active -

SW Version mismatch

softwareUpgradeRequired Active –

SW Upgrade Required

versionsIncompatibility Not

Active SW Upgrade Required

Color Desc.

Upgrade Available

Magenta (Same as authentication error)

Brown (Major) SW Upgrade

Red Local SW Upgrade

SW Upgrade Recommended

Required

Color

Yellow Green

Yellow Magenta

(Same as authentication error)

Yellow Brown (Major)

Yellow Red

5.7 Testing WinLink 1000

WinLink 1000 supports activation of the internal and external loopbacks on the local and remote units.

To activate a loopback:

1. From the Maintenance menu, choose Set Loopbacks.

The Loopbacks dialog box appears (see

2. From the Local or Remote drop-down box, select a loopback that

you intend to run, and click OK.

A confirmation message appears.

3. Click OK to activate a loopback.

WinLink 1000 activates selected loopback. A loopback status arrow in the Main menu turns green to indicate an active loopback.

To deactivate a loopback:

Figure 5-7

• From the From the Local or Remote drop-down box of the

Loopbacks dialog box, select None and click OK.

Testing WinLink 1000 5-15

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

A loopback is deactivated and the corresponding status arrow in the Main menu becomes dimmed.

Local External Loopback

Local WinLink 1000 can be set to an external loopback to test the local E1/T1 port and its connection to the local side user equipment. In this mode, data coming from the local user equipment is looped back to it

Figure 5-8

(see connected to the local unit.

Figure 5-7. Loopbacks Dialog Box

). This loopback is initiated from a management station

/T1

Interface

Testing

Equipment

Local ODU

Management

Station

Figure 5-8. Local External Loopback

Remote Internal Loopback

Remote WinLink 1000 can be set to an internal loopback to test connection between the local and remote units, the local E1/T1 port and its connection to the local side user equipment. In this mode, data

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

coming from the local WinLink 1000 is looped back to it (see

). This loopback is initiated from a management station connected to

the local unit.

E1/T1

Interface

Figure 5-9. Remote Internal Loopback

Remote External Loopback

Remote WinLink 1000 can be set to an external loopback to test the remote E1/T1 port and its connection to the remote side user equipment. In this mode, data coming from the remote user equipment is looped back to it (see inband command sent from a management station connected to the local unit.

Remote ODU Local ODU

Figure 5-10

). This loopback is initiated by an

/T1

Interface

Management

Station

Figure 5-

Testing

Equipment

Testing

Equipment

Local Internal Loopback

Local WinLink 1000 can be set to close an internal loopback to test connection between the local and remote units, remote E1/T1 port and its connection to the remote side user equipment. In this mode, data coming from the remote user equipment is looped back to it (see

Figure 5-11

from a management station connected to the local unit.

/T1 E1

Interface

Inband Loopback

Activation Command

Remote ODU

Local ODU

/T1

Interface

Management

Station

Figure 5-10. Remote External Loopback

). This loopback is initiated by an inband command sent

Testing WinLink 1000 5-17

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

E1/T1

Interface

Testing

Equipment

Remote ODU

Figure 5-11. Local Internal Loopback

5.8 Troubleshooting

Use

Table 5-7

Symptom Remedy

and

Table 5-7

to diagnose any faults in the system.

Table 5-6. Troubleshooting

Inband Loopback

Activation Command

Local ODU

/T1

Interface

Management

Station

Verify that AC power is connected to the IDU. No power

Verify that the ODU cable is properly wired and connected.

No signal

Complete the installation procedure from the management software.

Verify the ODU alignment. Check that the radio configuration of both site A and site B units are the same (channel and SSID).

Weak signal Verify the ODU alignment, reconfigure the link.

Verify the beeper sounds the Best Signal sequence.

The WinLink 1000 LEDs show faults in the system or the link.

Table 5-7. Troubleshooting with WinLink 1000 LEDs

LED Status Remedy

PWR Off Check that AC adapter is connected to the

IDU-E and the AC power outlet.

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WinLink 1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting

IDU Orange Check that the IDU/ODU cable is properly

wired and connected.

ODU Red Check that the IDU/ODU cable is properly

wired and connected.

AIR I/F

SERVICE

Orange Complete the installation procedure from

the management software.

Red Check the ODU Antenna alignment. Check

that the radio configuration of both site A and site B units are the same (channel and SSID).

Off Check the TDM service configuration in the

NMS.

Orange Check that the system is not in loopback

mode. Check the site B IDU ports and cables and site B external equipment.

Red Check the site A IDU ports, cables and

external equipment.

5.9 Replacing an ODU

Prior to any action verify that both ODUs have the same software version (Configuration > Configure site >Inventory). If one ODU has an old software version, perform a software upgrade. It is important to configure the new ODU exactly the same as the old ODU to avoid configuration mismatches, which will disrupt the link.

An ODU may be replaced with a new ODU in one several ways.

• Use the backup

If a backup of the configuration is available, restore that configuration using Configuration > Configure site > Restore.

• Manual Configuration

The new ODU can be configured manually according to the link configuration, remember to use the same settings for SSID, channels, link password, IP addresses, and names.

• Restore Factory Setup

From version 1.6xx the feature of Restore Factory Setup is

Replacing an ODU 5-19

Chapter 5 Diagnostics and Troubleshooting WinLink 1000 Installation and Operation Manual

available. Using this feature we recommend putting the remaining ODU back to factory setup Configuration>Configure site>Advance option, and then activate the second ODU reconfiguring the link from scratch.

Option number 3 is our recommended option preventing configuration mismatches.

5.10 Frequently Asked Questions

Q: What performance issues will arise due to environmental conditions?

A: WinLink 1000 is not sensitive to environmental conditions. However if heavy rain or snowfall is expected ensure the performance by allowing a higher fade margin in the link budget planning calculations.

Q: When using the WinLink 1000, what is the potential for interference between our system and other cellular or wireless Networks devices?

A: The WinLink 1000 is a robust system. However since it operates in unlicensed band there maybe some interference. Nevertheless, the fact that we can manually set the frequency gives us the flexibility to find a clear channel. In addition each WinLink 1000 link uses unique user configurable SSID code.

Q: What protocol does the WinLink 1000 use, i.e. 802.11?

A: WinLink 1000 uses a proprietary protocol; this protocol contains improved options that more efficiently support the clock reconstruction from the TDM services.

Q: What type of security is offered on WinLink 1000?

A: WinLink 1000 has three levels of security:

1. AES hardware mechanism

2. Each unit uses a unique SSID link-specific code (up to 24

alphanumeric characters)

3. Proprietary protocol protects from eavesdropping from other

systems.

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