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Getting Started
Procedure 4: Chassis and Appliance Firmware Support
Getting Started with Spirent TestCenter | 25
SPT-C50, SPT-C1, and PX3/DX3-QSFP-DD-8
For these appliances, the feature applies to Spirent TestCenter releases 4.94 and later.
When you initially upgrade to release 4.94 or later, both installed versions will be 4.94 or
later. Subsequent upgrades to releases later than 4.94 will result in two separate partitions,
containing the current version and the standby version, respectively.
Notes: •
Downgrading to a Spirent TestCenter version below 4.94 removes this
feature.
•
If you are using Spirent TestCenter version 4.53 or earlier, and you want to
upgrade to version 4.94, go to the Customer Service Center (CSC)
Knowledge Base, and follow the instructions in FAQ11021.
•
Downgrading to 4.81 or below is a two-step process (if you are at 4.94 or
above). First downgrade to 4.81 and then to the version you intend to use.
•
On PX3/DX3-QSFP-DD-8 appliances, downgrading below 4.94 is not
allowed from the GUI. Refer to CSC Knowledge Base article FAQ18701 for
details.
To see the available Spirent TestCenter versions using the command line interface:
1
SSH to the device using the admin username. Refer to page 43 for login instructions.
2
Use the applicable command
•
Type
version
to identify the active Spirent TestCenter version.
• Type
standby_version
to see the standby version.
To switch between two installed versions using the command line interface:
1
SSH to the device using the admin username. Refer to page 43 for login instructions.
2
Type
help
to view the list of options.
3
Select switch_version with yes as an option to switch to the standby version.
Note:
A reboot is required to switch versions. Select yes if you want to reboot and use the
standby version. If you select no , the switch to the standby version will take effect with
the next reboot.