You use Looking Glass to run some commands on a device
from the Junos Space user interface. The following types of commands
are supported: show, ping, test,
and traceroute. If you enter an unsupported command, the
following message is displayed: Looking glass supports
only the commands without '|','<' and '>' and starting with ping/show/test/traceroute.
Before you start executing commands by using Looking Glass,
ensure that you have configured the Looking Glass Device response
timeout in secs option on the Modify Application Settings page.
This setting defines the maximum time that Junos Space Network Management
Platform waits to collect the command output. The default timeout
interval is 120 seconds.
To run a supported command on a device by using Looking
Glass:
- On the Junos Space Network Management Platform user interface,
select Devices > Device Management.
The Device Management page that appears lists all the devices
that currently exist in the Junos Space Platform database.
- Select the devices on which you want to run the
show command and select Device Operations > Looking Glass from
the Actions menu. The Looking Glass page is displayed.
- (Optional) By default, a green check mark is displayed
against all the devices, which indicates that all the devices are
selected. To select only a few devices, press the Ctrl key and select
the devices by clicking the appropriate device icons.
A green check mark is displayed against the selected devices.
- In the Execute Command field, enter a command
or the first few letters of the command.
A list of suggestions is displayed. The suggestions include
only those commands that are present in the Junos Space Platform database
and that can be executed on the devices currently selected.
Lengthy commands that do not fit in the Execute Command field
are truncated and displayed with periods (.); for example CLI_COMMAND....
Mouse over the truncated view of the command to view the full
command.
Note: If the command that you are running requires your input,
replace the part of the command shown as text in angle brackets with
your own data. For example, replace <slot> in show
chassis routing-engine <slot> with the slot number, as in show chassis routing-engine 1.
You can also select a command from the list of commands in this
field.
- (Optional) If you typed the entire command or selected
a command from the list, click Refresh Response or press
Enter.
The command is executed on the devices. A progress bar indicates
that the command is being executed.
When the command execution is complete, the results are displayed
below the Execute Command field. The command that you entered or selected
is displayed beside the Refresh Response button. The output of the
command executed on these devices is displayed one below the other.
Scroll the results to view the output from these devices.
Note: If one of the devices on which you executed the command
takes too long to respond with results, the results from this device
are omitted and a Request timeout message
is displayed in a dialog box. The command output for other devices
on which the command is successfully executed is displayed.
- (Optional) The Format Text view is the default view of
the output. To change the view of the output, click the Table view
icon.
- (Optional) To view the output for a subset of devices,
press the Ctrl key and select the devices whose output you want to
view by clicking the appropriate device icons.
- Click OK to exit the Looking Glass page.
An audit log entry is generated for this task.
