Q001. What is the difference between Tera Term and netLD?

A001. Main difference between netLD and Tera Term.

1. netLD manage configurations of all devices on DB all at once.
Therefore, it is possible to avoid inconsistency of device management due to forgetting to
report configuration of having been changed.

In Tera Term, only administrator knows the contents of device change by himself.
On the other hand, it is possible for netLD to share history of changes among multiple users.

2. In netLD, it is possible to make report of configuration generation management,
comparison, and change history.
Therefore, it is possible to make trouble-shooting by configuration comparison with
previous one.

3. In netLD, it is possible to make multiple changes to managed devices all at once.
In Tera Term, it is necessary to create macro/script to make changes to multiple
devices at once.

Compare to Tera Term macro, configuration time is saved 89% to make accesslist
configuration change to 28 Cisco devices.
This is the data provided by NTT Data SMS.

Q002. In Command Runner, is it possible to run command causing rebooting devices in the middle of action?

A002. It is possible to run mutiple configuration commands at once,
but not to support configuration that reboots devices in the middle of action.

Q003. Is there a limit on the number of SmartBridges that can connect to one netLD server?

A003. We recommend that up to 10 SmartBridges connect to one netLD server.

Q004. Which ports does netLD use?

Aoo4. Check the section 7.1 Port Usage in NetLD Manual.

Q005. What are the requirements for Plug and Play (Zero-Touch)?

Q005. A5.There are following conditions to apply Plug and Play (formerly Zero-Touch): ・IOS: After ver.15.2(2) (for Zero-Touch, ver.12.3) released, CNS AutoInstall is implemented. *1 ・startup-config: There should be no "startup-config" that is valid to devices. *2 ・DHCP Server *3: In the case of using netLD DHCP server feature, it should be possible to distribute IP addresses via DHCP to target devices. *1 Implemented features of IOS can be checked from the link below: *2 When placing an order, choose the option in which default configuration is not installed on nvram. If you delete configuration manually, use commands such as "write erase", "erase startup-config", or "erase nvram" and the size of configuration on nvram must be zero. *3 If you don't want to use netLD DHCP feature, you can use an external DHCP Server (DHCP Option 150). If there is no router supporting Zero-Touch in the same broadcast domain in which netLD installed, configure a staging router as a DHCP relay that transfers DHCP requests to netLD.

Q006. How many generation configurations can netLD save?

A006.Data Retention setting has the following options: Perpetual, 1-7 years, and 6 months.

Q007. Is there documentation for core server and SmartBridges about traffic and process?

A7. Yes, you can download the document including the example of the structure of core server and SmartBridges from here.

Q009. Is it possible to import managed devices all at once.

A009. It is possible to import managed devices all at once with CSV files. Import procedures: 1. Select "Save inventory import Excel template" from Inventory tab on the right, and save it. 2. Open the file saved, input or select IP address, Network, and Adaptor, save it. 3. Select "Import/update inventory from Excel file" from Inventory tab, import Excel file that is saved in step 2.  

Q010. Why is a different IP address registered from the IP address that was specified by discovery?

A010. When netLD discovers the device that has multiple IP addresses, netLD chooses administrative IP address and registers it to avoid registering duplicate IP addresses of same device. Therefore, the IP address that is not specified by discovery can be registered. If such IP address that is registered, register it by going to "Add new device". When netLD discovers devices, administrative IP address is selected by following processes: 1. Run "show interface" command when netLD discovers. 2. Run "ping" in order of interfaces that is shown. 3. Pick the IP address that responds first as adminisrative IP address. Ping execution is operated by following processes: 1. Ping to softwareLoopback interface at first. 2. If there is no response from softwareLoopback,    ping to physical interface that is not loopback. 3. Do not ping to interface that is down.

Q011. How long does netLD keeps logs?

A011. According to specifications, there is no limit to how long logs are kept, but it depends on HDD capacity that netLD is installed. Once log file (netld.log) reaches 2048KB that is fixed as maximum size, backup file is produced as following: netld.log <- current netld.log.1 <- latest netld.log.2 <- second from latest netld.log.3 <- oldest Also, it is possible to change the maximum size of log and the frequency of backup. [Configuration procedures of file size] 1. Open "Net" by text editor. 2. Edit following lines: log4j.appender.SERVER.MaxFileSize=2048KB -> maximum size        log4j.appender.SERVER.MaxBackupIndex=3 -> frequency of backup 3. Reboot netLD service. ->Use command prompt stop service command: net stop netld start service command: net start netld ->Use control panel Select "Net LineDancer" from service to reboot.  

Q012.Can netLD send SNMP Traps?

A012.Yes, netLD sends SNMP Traps to destination IP address in case of following occasions:

・Configuration is changed at device *1
・New device is added in the network.
・Device is deleted.
・Backing up configuration of device is failed.
・Compliance is violated.

*1: At the time of backup, if there is any difference between latest configuration and the last
configuration, SNMP Trap will be sent.

Q013. Why is it late to reflect status icon next to device ip addresses?

A013. For reflection speed, it depends on netLD version that you use.

[In the case of using version before ver 10.10]
For device status, click "run" button on the left of device view and update it.

[In the case of using ver.11.04]
Status of the job that has been run is reflected automatically.

Q014. I have run device discovery, but devices are not added.

A014. Please check the following: ・SNMP of devices should be valid. ・SNMP community that has been set to devices should be same as the one that has been set to netLD credential. ・Ping/SNMP to devices should not be shut out by Firewall or antivirus software. ・Multiple network groups should not exist on "Network Groups" of credential/protocol. netLD has been revised to display the result of discovery and error from v.11.04. [Device added.] This is a state that the device has been successfully discovered and added to device inventory list. [There was no SNMP response.] This is a state that the device responded to Telnet, SSH or Ping, but not SNMP request. Please make sure that SNMP of device is vaild. For setting method of SNMP of Cisco device, please refer to the following: [No adapter matches] This is a state that the device responded to SNMP request, but no adapters match to netLD. Please make sure that if netLD supports the device. [Server protocol settings for SNMP for this device are disabled.] This is a state that SNMP protocol in "Inventory" -> "Protocols" is disabled for the network group. Please check protocol settings. [There was no ICMP ping response.] This is a state that the device did not respond to ICMP ping request. (This status is only available for discovering single IP address.) Please make sure that ping/SNMP to devices is not shut out by Firewall or antivirus software. [Unable to establish TCP connection on port 22(SSH) or 23(Telnet).] This is a state that netLD cannot connect to port 22(SSH) and 23(Telnet) of the device. (This status is only available for discovering single IP address.) Please make sure that if those ports are available.

Q015. The job that was scheduled has not been run. Why is that?

A015. Please make sure that the trigger for the job has been set up. Setting method: Click [+] icon in the bottom of "Schedule" tab, set trigger name and contents, and Click "OK" button. Click floppy icon in the schedule window, and add it to "Trigger" column.

Q016. I would like to see the update history of netLD.

A016. For the update history of netLD, please refer to the link below:

Q017. How is switch with a stack configurations shown in netLD?

A017. Switch with a stack configuration is registered as one device. As methods of distinguishing a stack by netLD, there are following ways: 1. Command Runner Check a stack information by running command such as "show switch". 3750-Stk>show switch Current Switch#  Role      Mac Address     Priority     State -------------------------------------------------------- 1         Slave       0016.4748.dc80      5         Ready *2       Master    0016.9d59.db00     1         Ready 2. Hardware Report If there are main switch, member switch 1, and member switch 2, report is displayed as following: -C3750 -Switch -------------------------- Type  Slot#  Slot Type   ...  Description Chassis Card   1    stack Card   2    stack --------------------------

Q018. What is the rough estimate of the capacity of the database?

A018. In the case of managing hundreds devices throughout a year, the capacity will be about 100MB, which is fairly small.
*It would vary depending on frequency of use jobs, complexity of network like VLAN and heavy configuration.

Q019. What is Cron?

A019. Cron is a scheduler of job execution that is similar to Cron/Crontab of Unix. For description method of Cron, please refer to Net LineDancer Manual.

Q020. Is it possible to connect multiple servers to one SmartBridge?

A020. No, it is not possible to connect multiple servers to one SmartBridge.

Connection as "Server : SmartBridge = 1 : n" is only available.

Q021. Do adapters support all the netLD features?

A021. No. For features except backup, available features are different depending on the adapter.
For the supported features of each adapter, please refer to the list of "Supported Devices and Features" below:

Q022. I can't perform backup because the "Backup" menu is grayed out.

A022. If more devices have been registered than the number of devices the license permits, the "Backup" menu will be grayed out.
Please reduce the number of devices.

Q023. When I have performed configuration changes on, the error "No connection-based protocol specified…" has occurred. How can I solve this problem?

A23. It will be solved by backing up to devices.

netLD caches credentials and protocols that have been used to backup,
and pushes commands with tools such as "Command Runner" or configuration change to device by using those cached.
Therefore, the above error will happen when configuration change is performed in the status of cache deleted.

Also, the cache is to be renewed when credentials and protocols are changed.
If credential or protocol is changed, please backup configuration of devices without fail.

Q024. After having changed the password of device, the process of running backup has failed. What was the cause of failure?

A024. When the password of a device has been changed,
credentials also need to be changed according to the new passwords of the device.

Q025. I reinstalled netLD, but it seems that partial files are missing.

A025. If some files couln't be deleted because of in use during uninstall, those will be deleted when Windows is rebooted.
Therefore, when you reinstall netLD, please follow below steps:

1. Uninstall netLD.
2. Reboot Windows.
3. Install netLD.

Q026. netLD doesn't send an email of report that is set by job.

A026. Due to mail server settings, sending email with an account that is not registered in the server may be unavailable.
Please make sure SMTP server settings for sending email.

1. Click "Settings" in the right of screen.
2. Click "Mail Server" on the left menu, and enter each section.

・Mail server hostname or IP address
・From email address
・From name
・Server requires authentication
・Mail server username
・Mail server password

3. Click "OK".

Q027. I have run "Collect neighbor data" in "Device" menu to get "ARP Table" and "MAC Table", but nothing is shown. What should I do to make them display?

A027. Since "ARP Table" and "MAC Table" get the SNMP information of the device,
please make sure if the set communities are the same between SNMP setting of the device and the credentials of netLD.
*In netLD, when netLD discovers or collects neighbor information (click binoculars icon), information collected or updated is shown.

Q028. I have run "Live ARP Table", "Interface Brief", and "IP Routing Table" in "Tools" menu, but no results are shown. What should I do to make them display?

A028. "Live ARP Table", "Interface Brief", and "IP Routing Table" get SNMP information of the device.
Therefore, set SNMP of the device, and make sure the set communities are the same between community of device and credential of netLD.

Q029. I failed to activate my netLD license.

A029. Authenticating by serial number, an internet connection is necessary.
If internet connectivity is limited, online authentication may not be unavailable.
If the problem cannot be solved, we will issue license file for local authentication,
so please cotact
MAC of server is necessary to issue license file.
(In the case of multiplr NICs, please send one of NICs that are connecting with cable.)

Q030. Even though netLD service is working, login window is not shown.

A030. Please make sure that other Web server such as IIS or Apache is not working on netLD server.

Q031. The running result of configuration change was failed. To investigate of the causes, where should I check?

A031. If running job is failed, you can check the detail of error by double-clicking status icon.
In the case of the job that detail of result is shown, since the result of command between netLD and device will be shown,
it is possible to check contents.

Q032. The running result of "Command Runner" was an error. What is the possible reason for the error?

A032. There is a possibility that configuration of the device is not backed up.
Please make sure that configuration backup is completed correctly before running job.

Q033. I understand that a Cisco device is able to update firmware because there is a menu called "IOS Software Distribution". Is it possible to update firmware of other nodes except Cisco?

A033. For IOS Software Distribution feature, only firm update of Cisco device was available by default.
Firmware update of NEC WA is now available from menu "NEC WA Software Distribution".
For other devices, it is possible to update firmware by using Command Runner with job feature and creating job for firmware update.

Q034. If netLD runs job that includes wrong command, is it possible to roll the status back to where it was before running job?

A034. Yes, netLD has a feature to restore startup-config at any generations that have been backed up previously.

Q035. After applying any configuration change job, does netLD confirm that the operation has completed correctly?

A035. No. Since netLD just tries to insert registered commands to devices,
netLD operations don't include validating the configuration already inserted into the device.

Q036. Is it possible to do an operation such as running another job after running one job automatically and having confirmed previous one correctly?

A036. No, it is not possible to run operations of more than two jobs sequentially after a result analysis.
it is necessary to run those jobs one by one manually with current version.

Q037. Is it possible to run a job that was once created at fixed intervals?

A037. Yes, all jobs are to be implemented due to a schedule.
it is possible to run job that was created at fixed intervals.

Q038. Is there a limit to the number of jobs that can be added?

A038. No, theoretically there is no limit to the number of jobs.

Q039. Is it possible to run a configuration change not listed in the menu of netLD?

A039. Yes, netLD supports it by using the Command Runner feature.
*netLD may not always support interactive commands for some devices.

Q040. Do all configuration change menus support multi vendor environments?

A040. Yes, in addition, it is possible to use them without remembering different commands and grammar. For example, with the "Backup" menu, the a different command is used by each vendor, but it is possible to run backup without remembering those commands in the case of netLD.

Q041. How much configuration information can netLD save?

A041. It is possible to save as much configuration information as much as you need.

[Setting procedure]
1. Select "Settings" in the right of screen.
2. Select "Data Retention" from left menu.
3. Set "Duration to keep configuration history" to "Forever".

Q042. How does netLD the hardware information of managed nodes?

A042. netLD collects return values of commands like "show version", "show module",
and "show tech", what are called in Cisco device as H/W inventory information.

Q043. I don't want to run discovery in a network that is operating. In that case, how should I register managed devices?

A043. By selecting "Inventory" -> "Add new device", or by importing CSV file,
it is possible to register nodes manually.

Q044. When running backup to a large quantity of nodes all at once, will my network performance be affected?

A044. If bandwidth is a concern, we recommend running staggered backups. For example,if you run a configuration to automatically backup 1,00 nodes per week, consider creating 10 jobs that run backup of 100 nodes each, and stagger the running schedule.

Q045. How does netLD work internally when it runs configuration backup or change to multiple nodes at once?

A045. Basically, netLD runs various processes by CLI base.

By the way, netLD collects configurations with TFTP,
or issues "show startup-config" and "show-running" commands what are called in Cisco device to nodes,
and then saves return values as configuration information by copy and paste.

Q046. What are the required conditions to run discovery?

A046. The required conditions to run discovery are the following: ・netLD should be able to reach managed device and IP address. ・SNMP setting at node side should be valid. ・Nodes should be able to receive Telnet or SSH protocol.

Q047. How do I register managed nodes?

A047. It is possible to register nodes in these two ways:

・Run polling into LAN by IP address base, and register devices that have responded (= auto discovery).
・Enter IP address directly.
・Import CSV file.

Q048. How do I create a format to import devices?

A048. Create a format with CSV that includes the IP address and adapter ID.
You can save the inventory export Excel template from "Inventory" on the right of the screen.

Q049. Is it possible to add columns of information for registered devices?

A049. Yes, it is possible to add up to 5 custom device fields in ver.11.04.
For added fields, it is possible to set viewing restriction to login user.

[Setting procedure]
1. Select "Settings" -> "Custom Device Fields", and enter names for each custom fields.
2. Select "Settings" -> "Users" -> "Add Users", and select custom field that user can view.

Q050. How can I determine which devices have changed configuration?

A050. From ver11.04, by using "advanced search" -> "Changed: Within range",
it is possible to search devices by specifying the date of configuration backed up.

Also, it is possible to check it by making "Configuration Changes" report from "Reports" in the right of the screen.

Q051. Is it possible to restrict the viewing of devices to each login user?

A051. Yes, by making network group and making devices grouping,
viewing restriction of devices is available in a network group unit.

[Setting procedure]
1. Select "Settings" -> "Networks", and add network.
2. Select added network from "Network" in the right of the screen.
3. Add device to network.
4. Select "Settings" -> "Users" -> "Add User" -> "Networks", and select network that user can view.

Q052. I would like to receive Trap from netLD to NMS. Is it necessary to set anything in NMS?

A052. To send Trap from netLD, it is necessary to compile private MIB at NMS side. You can donwload MIB to compile from the following:

Q053. Does netLD have a notification feature when configuration is changed?

A053. Yes, if the new configuration is compared with last cofiguration and there is any difference additionally found,
it is possible to send SNMP trap.

[Conditions of sending SNMP trap]
1. When configuration of a device is changed (when difference is detected.).
2. When a new device is added to inventory.
3. When a device is deleted from inventory.
4. When netLD backup job fails, trap will be contained hostname, IP address, configuration file name of device.

Q054. Is it possible to change the timeout of the console screen?

A054. Yes, it is possible to change the timeout of the console screen by following these steps:

[Using version later than ver.12.03]
1. Select "Settings".
2. Select "Network Server" and change "User login idle timeout (minutes)".
3. Push "OK" button.
* As for invalid timeout, set "525,600(maximum)". It is unnecessary to reboot netLD server.

[Using version before ver.12.03]
1. Stop netLD service.
2. Open the following folder in netLD folder (default location is directly under Program Files).
Net LineDancerosgi-configjetty
3. Open "" file, edit following line, and change the description "1800". (Unit: seconds)
ex1) If you want to change timeout to 10 minutes, change value to "600" (10 minutes × 60 seconds).
ex2) If you want to make no timeout, change value to "0".
4. Boot netLD service.

Q055. How can I set up dynamic credential?

A055. If the credentials of managed devices are same,
it is possible to use dynamic credential to apply the same credential to managed devices by specifying the IP address range.
Also, if the static credential already has a list of devices,
it is useful to associate each device with the each credentia,l one by one.

[Example of dynamic credential setting]
In the case of setting credential to following devices:
・, 192.168.2, credential like user and password all for three)
・ credential from others)

1. In "Credential" screen, add "Network Group" as any name.
2. Enter " -" to address specification column on the right, and add it.
3. Enter information like user and password of devices.
4. For, follow same steps above 1-3, and add credential.

Q056. Is it possible to change the configuration of multiple devices all at once?

A056. Yes, it is possible to select target devices by Ctrl or Shift key in Device view,
and then select tool from "Change" in the right of Device view and run it.
If you are unable to make changes to multiple devices all at once, the tool will be grayed out.

Q057. Is it possible to add managed devices all at once?

A057. Yes, it is possible to import devices from CSV file.
Also, it is possoble to add devices that have responded by discovery in specifying IP address range.

Q058. After I finish installing netLD, what should set up first?

A058. Basic features of netLD can be set up using the following steps: 1. Credential setting -> Enter information like password, user SNMP community of managed devices as credential. 2. Protocol setting -> Select protocol that is used to backup configuration of managed devices. 3. Add managed devices -> Add devices by manually or discovery with specifying IP address range. 4. Backup configuration -> Backup configuration of device. After following the above steps, you can use the Tool feature and the Report feature. Refer to the chapter 1.5, Initial Configuration in Net LineDancer Manual.

Q059. What can I do with the Tag feature?

A059. The Tag feature manages devices classified by groups with tags.
In Device view, it is possible to display only the devices you want to manage or apply jobs to target devices in a group unit.

[Procedures of adding Tag]
1. Click "Inventory" -> "Device Tags" in the right of device view.
2. Add new tags and click "OK" button.
3. Select devices and click "Device" -> "Associate tags" in the right of device view.
4. Select tags from a list of tag to apply.

Q060. Is it possible to check the command log that is run to devices?

A060. Yes, it is possible to get the command log by following these procedures:

[In the case of using version before ver.10.10]
1. Click "Help" -> "About" -> "Adapter Logging".
2. Select log to get by following.
・Logging debug and imortant message:
Server internal log and log of important message (credential error, device connection error, and adapter error or so)
(Save location Net LineDancerscratchlogs)
・Logging only important message (default):
Log of important message (credential error, device connection error, and adapter error or so)
(Save location Net LineDancernetld.log)
3. Run process to target device.

[In the case of using version later than ver.11.04]
1. Click "Help" -> "About" -> "Adapter Logging".
2. Enter target IP address.
ex) IP/CIDR: -> Click "Enable recording of adapter operations".
* Effective time of debug is 5 minutes.
(Save location Net LineDancerscratchlogs)
3. Run process to target device.

Q061. There are two installation programs in the program file. Which should I use to install or upgrade netLD?

A061. Since SmartBridge is added from ver11.xx,
we are providing not only netLD install program but also SmartBridge install program.
If SmartBridge is installed to netLD server by accident, existing data will be deleted,
so please make sure that data is backed up, and then install it after checking program.

[In the case of installing or upgrading netLD server]
Execute the following program:

[In the case of installing or updating SmartBridge]
Execute the following program:

Q062. If new version is released, how can I upgrade netLD?

A062. There are two ways to upgrade netLD.

[In the case of using version before ver.10.10 or online connection is unavailable from server]
Stop the service of existing netLD and install new version over existing netLD.
For more details of procedures, please refer to the "Upgrade Manual" that is distributed
when you download upgrade version.

[In the case of using version later than ver.11.04 and online connection is available]
Run "Software Update" from netLD console, and upgrade it.

1. Select "Settings" on the right of screen.
2. Select "Software Update"on the left menu.
3. Click "Install Update".
4. Update will be started. After that, service will be rebooted.
5. After completing update, the screen will automatically change to login screen.

Q063. What are the system requirements for installation?

A063. The requirements depend on the number of managed nodes.

Please refer to the following:

[Precaution of installation]
Please make sure that other software will not use the same ports,
which netLD will be deployed before installation.

Q064. Is it possible to push configuration with variable of multiple lines by using SmartChange?

A064. No, netLD doesn't support variable of multiple lines.
However, it is possible to correspond by making configurations algebraic value every one line.

1. Make template of following style.

conf t
write mem

2. Export template (xls).
please refer to the following:

3. Enter algebraic value to template.
Enter algebraic value to xls template.

4. Import
Import template.
please refer to the following:

*It is necessary to make template to each vendor.

Q065. Do leap years affect netLD?

A065. No, leap years do not affect netLD.
However, in the case of using Cron feature and Monthly in schedule feature,
when you specified 29th as the end of February of leap year, and if the year is not leap year,
it will be recognized as March 1st and schedule may not work correctly.

Q066. Is it possible to customize columns of "Devices" screen showing managed nodes?

A66. A new feature called "Custom Device Fields" was added with Ver.11.04.

In Custom Device Fields, it is possible to add maximum 5 columns that can be named specifically.
Also, it is possible to give viewing restriction to each column.

Q067. Can netLD work on LinuxOS?

A067. Linux CentOS/later than RedHat 5.x/6.x is supported.

Q068. Is it possible for multiple users to share netLD at once?

A068. Yes.
Also, it is possible to give permissions and viewing restriction to each user.

Q069. Does netLD have capacity limits for any kind of data?

A069. No, netLD doesn't have limits to the capacity except for the physical HDD limit.

Q070. In the case of netLD server crashing, how can I recover it?

A070. Once server is completely unavailable for some reason,
replace it with new server and contact with an explaination about what happened.
We will then reissue license.

Q071. How does the netLD license work?

A071. There are two types of licensing.

[Online authentication license]
When netLD is installed, enter the license key and authenticate it online.

[File authentication license]
We issue license file that is tied up with MAC address information of netLD server.
Apply the license file to netLD server and authenticate it off-line.

Q072. Can I develop a device adapter for netLD?

A072. It requires both professional language skill and network knowledge.
If you want to manage the devices that are not in our adapter list,
please contact for details.

Q073. How many nodes can netLD manage with one license?

A073. If the server that netLD is installed has enough resources,
it is possible to manage about 10,000 nodes with SmartBridge each handling 2,000 nodes(option) wit one license.

Also, by using SmartBridge that is implemented from ver.11.04,
it is possible to manage a maximum of 20,000 nodes with one core server.

Please refer to system requirements of netLD.

Q074. Is there a possibility that features of netLD might be unavailable due to updating OS of devices that have already been supported? If so, how can you support us?

A074. Yes, because of updating OS of devices, and if the commands that have been changed, the features of netLD will be unavailable. If you have a valid support contract, we will provide support at no charge.

Q075. Is it possible to backup the configuration of credentials of a Linux server?

A075. Yes, netLD supports Linux servers.

Q076. Does netLD work on VMware?

A076. Yes, netLD works on VMware.
We have an operational achievement on vSphere.

For more details, please contact

Q077. Is it possible to specify "save location" that is different from folder that netLD is installed?

A077. Yes, you can do that.

For details of setting or so, please contact

Q078. Is it possible to get support on-site?

A078. No, it is not possible. We do offer Webex support.

For more details, please contact

Q079. What is the scope of support?

A079. Support covers the following:

・Q&A by email or phone regardless of presale or aftersales.
・Fixing bugs
・Free provision of new version installer
・Fixing adapters of OS that are supported
*Some adapters need to be updated in line with netLD version up.

Q080. Is it possible to use other products on the same server as netLD?

A080. Yes, it is theoretically possible as long as the other product doesn't use the port that netLD uses.
In addition, please ensure that a server has enough resources.

The list of the ports that netLD uses is shown in NetLD Manual.

Q081. Is it possible to add to the number of managed nodes after buying an initial license for 50 nodes?

A081. Yes, it is possible by buying an additional license.

For more details, please contact

Q082. How much bandwidth does netLD use for getting an OS image? Also, how long does it take to process?

A082. For bandwidth and processing time of OS image retrieval, please refer to the following:

netLD server: Windows 7
Core2 Duo CPU T7250 @ 2.00GHz 1.99GHz


Line Speed:

■IOS image retrieval
・Processing time -> 124 seconds (file size: 22,629KB)
・Bandwidth usage -> 2Mbps (average)

*Processing time may vary due to OS image size, response speed, server spec, and line speed.

Q083. Does netLD support redundancy? What is the best way to operate it?

A083. netLD v14.06 now supports redundant configuration. The older versions do not support redundancy configuration. To prevent issues in case of a system crash, we have successfully used the following techniques in the past: ・Reserve 2 netLD servers beforehand. When the active server is down, activate the standby server, which will continue operation instead. ・Backup netLD server at OS level periodically, and restore backup to reserved server when server is down. The former is easier to restore, but it is required to buy 2 product licenses beforehand. On the other hand, the latter needs only 1 license, but when the server is replaced, it is necessary to reissue netLD license, which might significantly delay the system backup. Also, netLD supports clustering in Japanese windows. The following combination of system has been confirmed already. Windows Server 2008 Hyper-V and CLUSTERPRO X. For operating environments, please contact  

Q084. What is the recommended system requirement for netLD server?

A084. The more nodes you will manage, the more powerful the server should be.
Please check the link below:

If you let us know how many nodes will be managed, we will answer promptly.

Q085. Can netLD manage the devices from any vendor?

A085. We are releasing a list of devices that netLD supports.
Please check the link below:

For devices that are not supproted, it may be necessary to develop an adaptor. Generally speaking, it is possible to support devices that have CLI.
Fore more details, please contact

Q086. What kind of devices can netLD manage?

A086. netLD mainly supports managed router, L2, L3 switch, firewall, and wireless AP.
Please check the link below:

Also, we are able to develop adapters on-demand when device is not supported.
*Note: There may be a device that cannot be supported.
For more details, please contact

Q087. What are the requirement specifications of netLD?

A087. You can check system requirement of netLD from the link below:

Q088. Does netLD support IPv6?

A088. Yes, netLD supports IPv6 in all versions.

Q089. How much bandwidth does netLD use for configuration backup? How long does it take to process?

A089. For bandwidth and processing time of configuration back up, please refer to the following:

netLD server:
Windows 7
Core2 Duo CPU T7250 @ 2.00GHz 1.99GHz


Line Speed:

■Bandwidth and processing time of configuration back up
・Processing time -> 5 seconds
・Bandwidth usage -> 350Kbps (maximum)

*Processing time may vary due to configuration size, response speed, server spec, and line speed.

Q090. Where does netLD store MIB files?

A090. MIB files are stored in netLD server directly "/osgi-config/network".

Q091. Does netLD have an OS software distribution feature?

A091. Yes, netLD supports OS software distribution feature to Cisco IOS and NEC WA.

OS software dostribution is supported in Cisco IOS and NEC WA only.
it is possible to distribute OS software by using "Command Runner".

Q092. Is it possible to change the configurations of multi-vendor devices all at once?

A092. Yes, netLD implements a tool menu of commands that is commonly used.
In the case of using tool menu, it is possible to change configurations of multi-vendor devices all at once.

Q093. When backing up or changing configurations, is it possible to limit processing nodes?

A093. Yes, you can change processing nodes at once by using the following steps:

1. Open "" file in the "Net LineDancerosgi-cnfigdispatcher" folder.
2. Change the value of "maxThreadCount=10"(number of processing nodes at once).
*Note: we don't recommend changing the value to bigger value than fixed value.
Failures by violating our recommendation might be subject to no more support from us in this issue.
3. Reboot netLD

Q094. Is it possible to unify the task of logging into netLD with authentication server like Radius and LDAP?

A094.  netLD v14.06 supports this feature now. ID and Password was necessary for every Net LineDancer login in older versions, but with v14.06 Active Directory authentication is supported. Login authentication can be correlated by just specifying the authentication server.

Q095. Does netLD encrypt security information that is entered or inventory that is backed up?

A095. No, netLD doesn't encrypt data of managed nodes.
When data encryption is necessary, please use the EFS feature of Windows OS.

Q096. Is it possible to run multiple jobs on the same schedule?

A096. Yes, it is possible to run 10 registered jobs at the same time.
Also, in the case of more than 10 jobs, netLD runs 10 jobs in registered order.
If one of them has been completed, the 11th one will be added and processed.

Q097. In the case of entering wrong commands by CLI, is it possible to determine if my commands are correct via netLD?

A097. No, netLD does not understand either grammar or correctness of commands entered into CLI.

Q098. In the case of failed SmartChange, is it possible to check how much the job has been processed?

A098. Yes, you can check the list of nodes that has been running the jobs, the commands sent and the acknowledgements between server and devices.

Q099. When netLD manages nodes over WAN, how fast is WAN's line required at least?

A099. Line speed that is faster than 128K is required. However, in the case of managing with 128K, task of backing up configuration may be delayed.

Q100. When backing up a new configuration, is the previous configuration deleted?

A100. Configurations that have been backed up previously are saved as history and can be referred or compared with other configuration later.
You can set the duration to keep configuration history by "Settings" -> "Data Retention" on the right of screen.

Q101. What protocol dose netLD use to connect to a device (discovery, config backup, or change)?

A101. For discovery, ICMP and SNMP are used.
For backup and change, SNMP, SSH, TELNET, and TFTP or so are used.
Depending on devices, netLD choose necessary protocols below:


*SSH or TELNET is required.

Q102. Which database does netLD use?

A102. netLD uses Apache Derby as database. And also, netLD uses Posgres in redundant configuration (available on Linux platform only).

Q103. When I access netLD remotely, is safe from a security standpoint of view?

A103. Yes, when you access netLD remotely by browser, https is used between server and clients.

Q104. Can netLD export inventory?

A104. Yes, you can export inventory as CSV by "Inventory" -> "Export inventory as Excel file" on the right of "Devices" screen.

Q105. Is it possible to check the history of jobs that have been run? Also, how long can netLD save the history?

A105. Yes, you can check it by "Jobs" Tab -> "Job History".

You can check the following contents by "Job History":

・Name of job (both automatic and manual)
・Start time
・End time
・Result of running Tool and Report job (double-click job)
・Result of running via Terminal Proxy

Q106. What is the difference between the evaluation and the release version?

A106. There are no difference about except for its validity.

However, evaluation version has following limits:

available nodes: 100 nodes
expiration date of license: 30 days

[In the case of online authentication]
30 days since the date installed

[In the case of off-line authentication]
30 days since the date of license file that was created

Q107. Is it possible to check the license expiration date?

A107. Yes, you can check the license expiration date by referring to "Help" -> "About" on the right of screen. Also, netLD warns you by popup banner (1min) within 90 days from expiration.

Q108. Can netLD set user access control and authentication?

A108. Yes, netLD can combine mix and matched permissions and set them to user account.

Q109. Which OS does netLD support?


* Windows Server 2008 (SP3)
* Windows Server 2008 R2
* Windows Server 2012
*Linux RedHat 5.x/6.x

For more detail, please contact

Q110. How is the subscription license updated in netLD?

A110. If a user wishes to convert an evaluation into a full version, they need a new/updated license.enc file provided by LogicVein.

The license.enc file is copied into the osgi-config/security directory and the service restarted.

That’s it, it should be activated with a new license at that point.

Q111. Give an example of creating a custom Smart Change to enable Netflow on router interfaces.

A111. Here is an example of creating a custom Smart Change to enable Netflow on router interfaces.

1. Go to the Job Management tab

2. Select “New Job” -> Smart Change


3. Enter a Job name and click Ok.
4. In the job editor, paste in some Netflow boilerplate commands.


5. Now let’s parameterize some of the contents to create a tool.
Highlight a fragment to create a replacement, then click on the + button ...



6. Create a “Choice" of interfaces for the user to select from …

7. Use the same value for both the “interface" command and the “flow-export source” by highlighting the target, and then dragging and dropping from the list of replacements.


8. Save the job and close the editor.


9. On the Devices tab, select a device(s), and from the Smart Change menu choose your new tool.


10. Fill in your desired data and execute.

It’s that simple.
There are of course many other features of Smart Change, such as exporting an Excel spreadsheet where many devices and values can be populated and then imported to execute a mass change, etc.

Q112. netLD can do bulk configuration of devices, including distribution of IOS updates. Is there a limit on the number of devices that could be upgraded in a single batch?

A112. Regarding bulk configuration changes and IOS distribution, there is no limit to the number of devices in a single batch.

Q113. What are the browser requirements for netLD?

A113. We always recommend being on the latest versions of both the browser and flash.
But these are our minimum client requirements:

Adobe Flash Player:

  • Flash version 13 and up.
  • Internet Explorer: version 8 and up.
  • Chrome: version 38 and up.
  • Firefox: version 31 and up.
Java is not required.

We don't have specific support requirements for the client operating systems, but in general we don't support operating systems that are themselves no longer supported (eg: since Microsoft no longer supports Windows XP, we also don't support XP).

Q114. What kind of license does netLD support?

A114. 1.Perpetual licenses This license type does not expire, which means that the software functionality is maintained, neither interrupted nor disappeared. *However, let us tell you how the annual support period works for you. An expiration warning message bar will be shown up 90days before the actual expiration date on netLD screen. *Annual support license is sold separately at the same time of the software purchase by the customers. *Our policy would not allow customers to purchase the software only without annual support license as our goal is to make sure that customers will derive the benefits from using netLD and will be happy. 2.Subscription license (Cloud version) This license type has 1 year expiration in the case of both ONLINE and OFFLINE versions. The product does not function any longer after 1 year. *ONLINE version means that customer can open and disclose their network accessible to netLD interactions,which will allow us to issue the license here by not requiring customer’s MAC address while OFFLINE version isolates their network from any outside accesses. The customer OFFLINE should provide us with the MAC address for netLD server ,which is more commonly practiced by the customers. If the network is isolated,you need to encourage the customer to provide MAC address for us by return. *The number of nodes in subscription is unlimited,which will allow customers to increase or even decrease the number of nodes during their uses. This means that the license provide more flexible approach for customers but ScienceLogic adopting the same marketing approach encourages customers to reach 3-year agreement. Please note that this rule applies to both evaluation license and subscription license. For your convenience, you can download the above as pdf.

Q115. On which devices does netLD support Change Adviser?

A115. netLD supports Change Adviser for the following devices:

+Foundry FastIron
+Cisco IOS
+Fujitsu Ipcom
+Cisco SecurityAppliance (ASA)
+Fujitsu SRS
+H3C Switch
+AlliedTelesis XSeries

Q116. Could I have an overview on how the backup process with netLD works from start to end?

A116. Here is a basic overview of the backup procedure...

  1. Initiate CLI connection to device
  2. Run commands
  3. Possibly send configurations over FTP or TFTP back to netLD
  4. Close connection to device
  5. Save hardware and software information to database
  6. Compare configurations and save to database if there is a change
And here are a little more details for each of the steps...
  1. netLD initiates a backup using the configured protocols and credentials. If the connection with the protocols or credentials fails, it will retry with the next configured combination of credentials and protocols until it can successfully log in to the device. netLD will remember the last successful combination of credentials and protocols for the next time a backup operation is performed against the device.
  2. netLD executes a set of commands against the device in order to collect various hardware and software information from the device. It will also run commands to collect the configuration itself.
  3. Depending on device support this might all be over the CLI (SSH or Telnet) but in some cases netLD will issue a TFTP or FTP command to send the configuration back to the netLD server.
  4. The connection to the device is closed.
  5. The parsed hardware and software information from the device is updated in the netLD database.
  6. netLD will perform a configuration comparison of the collected configurations against the previous backup's configurations. If there is a change the configuration files are saved into the netLD database. (The configurations are saved using a "reverse delta" model, so only the changes themselves are saved rather than the entire configuration.)
If you are running a smart bridge there is an additional step after the communication with the device where the SmartBridge will check it's saved CRC hash of the configuration to see if there is a change or not. If the CRC hash of the configurations are unchanged then it will tell the main server that there are no changed. This allows the system to save on bandwidth communicating between the smart bridge and main server in the common case of there being no changes.

Q117. Which protocol does netLD use to communicate between server and SmartBridges?

A117. SSL is used between SmartBridge and netLD.

Q118. When I try to run Terminal Proxy, an error message "SSH2 autologin error: user authentication failed." is displayed.

A118. This error message only appears with Tera Term version 4.87. Downgrading Tera Term to a lower version, this message will never appear.

Q119. How can I apply the configuration I wrote directly?

A119. The draft configuration feature, added to Net LineDancer v13.08, can be used to push the config you directly edited on the devices.

Q120. Can I register the memo format frequently used?

A120. On v13.08, the memo template feature is added. This memo is also available for the configuration or draft configuration, which are also added on this version. For each type of memo (devices, configuration, draft configuration), one template can be created.

Q121. Can I attach memos in the inventory?

A121. Yes, you can attach memos to the devices in the inventory. On v13.08, you can also attach it for the config and draft config.* * Draft configuration is added on v13.08, where users can edit a configuration directly and push it on the devices.

Q122. What is Change Advisor?

A122. Change Advisor was added to Net LineDancer v13.08, which can generate commands automatically and push them on the devices.

Q123. What does the “@@ -101,6 +101,7 @@” on the report represent?

A123. It is the result of the diff output in the unified format: @@ -"the number of the lines of old file"+"the number of the lines of new file" @@ "@@ -101,6 +101,7 @@" means "the difference between the line 101 through 107 of old file and the line 101 through 108 of new file."

Q124. Regarding failing to import data from an Excel sheet.

A124. ■Case 1: Failed to import static credential from an Excel sheet. Please check the following: 1. Is there a space or an irregular character in the "IP Address" column? 2. Is there a double-byte character in IP addresses? 3. Are there two identical IP addresses in the sheet? In above cases, only those lines containing such errors are not imported. (Other lines are imported.) ■Case 2: Failed to import inventory from an Excel sheet with an error. Please confirm the IP addresses in the imported file. If there are any two identical IP addresses, you cannot import the inventory. ■Case 3: There is some lines that are not imported from an Excel sheet. Please check the followings. 1. Is there any space or an irregular character in the "IP Address" column? 2. Is there any double-byte character in IP addresses? In above cases, only those lines containing such errors are not imported. (Other lines are imported.)

Q126. How do I brand the login page with my company logo?

A126.  Create a PNG version of your logo with the dimensions of 210 x 90 pixels (width x height).  Rename the file to partner-login.png and copy it to the directory where netLD is installed.