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Viewing Device Configuration Details

Contents

Overview

After adding the device and providing the credentials, the details about the device can be obtained from the inventory tab in the GUI. This section explains how to view various details about the device and viewing the device configuration.

Viewing Devices

The devices added to DeviceExpert can be viewed from the "Inventory >> All Devices"

Viewing Device Details

Pre-requisite

To view device details/configuration, you should have supplied device credentials properly

Device Details

The Device Details are presented in three sections:

 

    1. Basic device properties (hostname, IP, device status, operation status etc.,)

    2. Hardware properties (device type, make, model, chassis details etc.,)

    3. Configuration Details (current configuration, history of changes in configuration etc.,)

Viewing Basic Device Properties

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose properties are to be viewed

    2. In the GUI that opens up, the device properties are displayed on the LHS

Hardware Properties

Upon giving credentials and taking backup of device configuration, hardware properties of the device such as chassis details, model number could be fetched and displayed on the device details page.

 

To view the hardware properties,

 

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose hardware properties are to be viewed

    2. In the GUI that opens up, click the tab "Hardware Properties" the device properties are displayed on the LHS

 

Note: Every time device configuration backup is done, the hardware properties are also fetched and updated. At any point of time, you wish to fetch harware properties, simply execute device backup.

 

Viewing Device Configuration

One of the important functions of DeviceExpert is retrieving the configurations from devices and storing them with proper versions in the database. At any point of time, you can view the current version or any of the previous versions of the configurations. This can be done from the 'Device Details' page.

 

Before proceeding further, it is pertinent to look at the definitions of the following terms:

 

  • Current Configuration: this reflects the currently available configuration in the device

    • Current Startup Configuration: this reflects the currently available startup configuration in the device - this is, the configuration that will be loaded when the device starts up

    • Current Running Configuration: this reflects the currently available running configuration in the device

  • Startup History: History of changes that were done over the Startup Configuration. This is presented in terms of change versions in hierarchical order

  • Running History: History of changes that were done over the Running Configuration. This is presented in terms of change versions in hierarchical order

  • Baseline Configuration: The Baseline configuration refers to a trusted working configuration. You can keep any version of device configuration as the Baseline Configuration. When you want to revert to a safe configuration version or while doing disaster recovery, Baseline configuration would come in handy

  • Labelled Configuration: For any version of configuration, you can associate a label - that is, a unique tag. As configuration versions keep on changing, you will have difficulty in remembering the version number of a particular good configuration. To avoid that, you can associate the version with a label for easy identification

  • Draft Configuration: As the name indicates, this is a new configuration created by you. For creating a draft configuration, you can take up any version of device configuration - startup or running - and save it as a draft as it is or after carrying out some changes. You can also create a new draft altogether

 

Viewing Current Version (Running & Startup)

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be viewed

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "Current Version" against "Running Configuration" / "Startup Configuration" whichever is required

Viewing Baseline Version (Running & Startup)

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be viewed

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "Baseline Version" against "Running Configuration" / "Startup Configuration" whichever is required

Viewing History of Running/Startup Configuration

The history of changes that were done over the Running/Startup Configuration are listed with version numbers representing the change. In addition, other details such as who effected the changes at what time and also the reason for the change are also listed.

 

To view the running configuration history,

 

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be viewed

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "Current Version" against "Running Configuration" / "Startup Configuration" whichever is required

    4. In the GUI that opens up, the current configuration is shown. The drop-down against the field "Configuration Version" provides the list of all configuration versions. Select the required version. It will be shown in the GUI.

 

Managing Configurations

Editing Configuration Files

You can choose any version in the startup/running history and edit them as draft.

 

To edit configuration files,

 

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be edited

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "Current Version" against "Running Configuration" / "Startup Configuration" whichever is required to edited

    4. In the GUI that opens up, the current configuration is shown. The drop-down against the field "Configuration Version" provides the list of all configuration versions. Select the required version. It will be shown in the GUI.

    5. Click "Edit as Draft" available in the drop-down under "Actions". You may now edit the content. Click "Save".  You may upload it to the device immediately (as startup/running configuration) by clicking the link "Upload" in "Actions"

Creating New Drafts

Instead of editing the startup/running configuration, you can create fresh draft configuration to upload only a few commands - say for updating SNMP community.

 

To create a draft,

 

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be edited

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "New Draft" against the field "Drafts for this device"

    4. In the text editor that opens up, you can create the draft with the required commands and "Save". You may upload it to the device immediately by clicking the link "Upload" in "Actions". You may upload it to the device immediately (as startup/running configuration) by clicking the link "Upload" in "Actions"

 

 

Important Note: When you upload a new draft to the running configuration of a device, the difference is merged with the previous version. On the other hand, when it is done on the startup configuration, only the draft contents are uploaded - that means, the previous version will be replaced by the draft contents. So, exercise care while uploading draft to the startup configuration.

 

Comparing Configuration Versions

One of the powerful features of DeviceExpert is its capability to provide side-by-side difference between any two configuration versions. You can compare two configuration versions of the same device or of different devices.

 

To compare configurations,

 

    1. Go to "Inventory >> All Devices" and click the hostname of the particular device whose configuration is to be compared

    2. In the GUI that opens up, the configuration details are displayed on the RHS

    3. Click the link "Current Version" against "Running Configuration" / "Startup Configuration" whichever is required

    4. In the GUI that opens up, the current configuration is shown. The drop-down against the field "Configuration Version" provides the list of all configuration versions. Select the required version, which is to be compared with another version.

    5. Go to "Show Difference" button and select an option from the drop-down (Diff with Previous, Diff with Baseline, Diff with Startup/Running, Diff with Any)

 

Option to Exclude Specific Lines/Text

 

While generating configuration difference between anytwo versions, there might be requirements to exclude certain specific lines or text. For example, lines containing Cryptochecksum information, speed token, NTP clock-period should be ignored while taking the difference. While DeviceExpert itself takes care of excluding information like the ones above, users can specify exclude criteria based on specific needs. Once the criteria is specified, DeviceExpert will exclude the lines matching the specified criteria for all devices belonging to the device template for which the exclude criteria is created.

You may make use of Regular Expressions while specifying the Exclude Criteria. For instance, if you wish to exclude the lines containing the text "logging" followed by an IP address, you may specify the criteria as logging.*

 

To specify the exclusion criteria,

 

 

Once you do this, the specified criteria will be enforced for the selected devices and the lines matching the criteria will be ignored while taking configuration difference.

Performing Various Actions on Devices/Configurations

From the "Inventory" >> "Device Details" page, you can perform various actions on the device such as enabling real-time configuration change detection, executing various 'show' commands on the device, edit device properties, edit credentials and launching telnet connection with the device.

Executing 'show' commands

You can execute 'show' commands such as 'Show Version', 'Show Interfaces', "Show Tech Support", "Show Access Lists", "Show Logging", "Show IP Traffic" and "Show Buffers" on specific devices from the inventory tab. DeviceExpert executes the command and displays the result.

 

To execute 'show' commands,

 

 

Note: If you want to execute show commands on multiple devices at one go, make use of the script execution in configuration templates.

 

Enabling Real-time Change Detection

Refer to the section Real-time change detection

 

Establishing Telnet Connection

You can launch telnet connection with the device from the Device Details page. Once you provide the credentials needed, you would be able to have a telnet console and work with it.

 

To launch telnet connection,

 

 

Remote Host:  The host to which the session is to be established

Remote Port: The default is set for telnet(23)

Login Name: One of the user name/login name present in the remote host

Password: Password for the user

Login Prompt: This is the prompt that the device issues for getting the user name

Password Prompt: This is the prompt that is issued by the device for getting the password

Command Prompt: This is the prompt displayed by the device for each command

 

Switch Port Mapper

DeviceExpert provides the 'Switch Port Mapper' tool that helps network administrators identify the list of devices connected to each port of the managed switch. This eliminates the need for manually tracing the network cables.

 

The tool discovers the devices plugged into each port of a specified switch. It helps in gaining visibility into the IP, MAC, VLAN, status and availability of ports. Total number of ports, total number of available ports, total number of transient ports are all provided. Since this is a real-time discovery, the administrators can also view the operational status and speed of each port.

 

You can execute the tool to view the mapping at any point of time. You may also create a scheduled task to execute the tool at regular intervals.

 

Prerequisite:

 

To execute switch port mapper, you should have entered SNMP credentials through SNMP profiles. If you have not created any SNMP profile, create one before proceeding further. Refer to this section for more details.

 

To execute 'Switch Port Mapper',

 

 

Note: Switch port mapping is applicable only for the SNMP-enabled devices. If you want to change the SNMP community, you can do that from the above UI that displays the mapping.

 

Creating scheduled task for periodic execution

 

Refer to the scheduled tasks section.

 

Generating switch port mapping reports

 

Switch Port Mapping scan results could be generated in the form of a report. From the switch port results page, click the link "Generate Report". The report could be generated as PDF too.

 

 

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