6.8 Managing EOS Extensions
The most simple and efficient way to make the most of the extensibility on which EOS is built is through the use of extensions. An extension is a pre-packaged optional feature or a set of scripts in an RPM Package Manager (RPM) or Software image extension (SWIX) format. A variety of extensions are available from the EOS Central page at http://eos.arista.com.
These sections describe basic EOS extension tasks:
6.8.1 Installing EOS Extensions
Complete the following steps to install an EOS extension.
Step 1 Download the desired extension and copy it onto the device’s flash storage.
switch#dir
Directory of flash:/
 
      -rwx   479183792           Jun 23 09:46  EOS-4.13.3F.swi
      -rwx    21280296            Feb 6 16:48  arista-splunk-extension.swix
      -rwx          27           Jun 23 10:08  boot-config
      drwx        4096           Sep 26  2012  schedule
      -rwx        1481           Jun 27 05:54  startup-config
Step 2 Copy the file from the flash storage to the extensions partition.
switch#copy flash:arista-splunk-extension.swix extension:
Copy completed successfully.
Step 3 Install the EOS extension.
switch#extension arista-splunk-extension.swix
If this extension modifiers the behavior of the Cli, any running Cli sessions will
need to be reset in order for the Cli modifications to take effect.
Step 4 If extension persistence across reboots is required, the extension should also be copied into the boot-extensions partition.
switch#copy installed-extensions boot-extensions
Step 5 Run the extension. As the CloudVision extension adds additional CLI commands to EOS, the CLI session must be restarted so that the additional commands are available. To achieve this, close the SSH or the telnet session and open a new session.
6.8.2 Installing EOS Extensions on a Dual-Supervisor Switch
Complete the following steps to install an EOS extension on a dual-supervisor switch.
Step 1 Copy the extension from the primary supervisor to the standby supervisor’s flash directory.
switch(s1)#copy flash:<filename>.swix supervisor-peer://mnt/flash/
Step 2 Establish a session to the standby supervisor from the primary.
switch(s1)#session peer-supervisor
Warning: Permanently added '[127.1.0.2]:3601' (RSA) to the list of known hosts.
Last login: Mon Aug 27 17:32:00 2018 from supervisor1
 
WARNING - you are currently logged in to the standby supervisor.
Not all cli commands are available or supported. Any configuration
done from this cli will not be reflected in the active supervisor's
running config and will be lost when the active supervisor writes
its startup config.
switch(s2)#
Step 3 Repeat the steps listed in the Installing EOS Extensions to install the EOS extension.
Step 4 Repeat the steps listed in the Verifying EOS Extensions Installation to verify the extension installation.
Step 5 Exit standby supervisor.
switch(s2)#exit
Connection to 127.1.0.1 closed.
switch(s1)#
6.8.3 Verifying EOS Extensions Installation
Complete the steps to verify that the EOS extensions are installed correctly.
Step 1 Run the show extensions command to verify that the EOS extensions are available and installed correctly.
switch#show extensions
Name                                       Version/Release           Status Extension
------------------------------------------ ------------------------- ------ ----
EosSdk-1.2.1-fl.boca-1943435.i686.rpm      1.2.1/1943435.flbocaeossd A, NI     1
arista-splunk-extension.swix               0.95/1498976.2013ltdsplun A, I      2
fping-2.4b2-10.fc12.i686.rpm               2.4b2/10.fc12             A, I      1
gnuplot.swix                               1.10.0/1.fc14             A, I     16
splunkforwarder-5.0.9-213964.i386.rpm      5.0.9/213964              A, NI     1
 
A: available | NA: not available | I: installed | NI: not installed | F: forced
Step 2 Run the show boot-extensions command to verify that the EOS extensions are enabled for boot persistence.
switch#show boot-extensions
arista-splunk-extension.swix
fping-2.4b2-10.fc12.i686.rpm
gnuplot.swix
6.8.4 Uninstalling an EOS Extension
Complete the following steps to uninstall an EOS extension.
Step 1 Uninstall the existing EOS extension using the no extension command.
switch#no extension fping-2.4b2-10.fc12.i686.rpm
switch#show extensions
Name                                       Version/Release           Status extension
------------------------------------------ ------------------------- ------ ----
EosSdk-1.2.1-fl.boca-1943435.i686.rpm      1.2.1/1943435.flbocaeossd A, NI     1
arista-splunk-extension.swix               0.95/1498976.2013ltdsplun A, I      2
fping-2.4b2-10.fc12.i686.rpm               2.4b2/10.fc12             A, NI     1
gnuplot.swix                               1.10.0/1.fc14             A, I     16
splunkforwarder-5.0.9-213964.i386.rpm      5.0.9/213964              A, NI     1
 
A: available | NA: not available | I: installed | NI: not installed | F: forced
Step 2 Remove the extension from the boot-extension using the copy installed-extensions boot-extensions command.
switch#copy installed-extensions boot-extensions
Note If your system is a Dual-Supervisor Switch, connect to the secondary supervisor using the session peer-supervisor command, repeat steps 1 and 2, and finally exit from the secondary supervisor.