Amer Networks E5Web GUI - Manual (Page 61)

If the administrator expects that configuration changes will break the communication
between cOS Core and the web browser (for example, by changing the management IP), they
should select Save and Activate then login again before the timeout period expires. This login
tells cOS Core that the administrator still has access and the configuration will not revert back
to the old version.
• Changes made through the CLI over SSH
When using the CLI via an SSH connection, the administrator must first issue the command:
Device:/> activate
This activates the new configuration but the changes are not made permanent until the
following command is issued:
Device:/> commit
If the commit command is not issued within a fixed period of time (the default is 30 seconds)
after the activate, cOS Core assumes communication has been lost and the original
configuration is restored.
If a configuration change breaks SSH communication, the administrator must login in again
over SSH in order to issue the commit command and make the changes persistent.
• Changes made via the Serial Console CLI
Unlike when using SSH, communication with the local serial console cannot be lost if
changing a management interface IP address and/or a remote management rule. This means
that a commit command can always be issued after an activate command to make changes
persistent. However, the administrator must then check manually if access via the
management interface is still possible after entering commit.
If the default 30 second delay is too short, the delay can be changed in the configuration's
advanced settings. The setting's name is Validation Timeout
in the Web Interface
(NetconBiDirTimeout in the CLI) and is a global setting.
Example 2.4. Changing the Management Validation Timeout
This example will change the validation timeout from its default value of 30 seconds to 60
seconds.
Command-Line Interface
Device:/> set Settings RemoteMgmtSettings NetconBiDirTimeout=60
Web Interface
1. Go to: System > Device > Remote Management > Advanced Settings
2. Set the following:
• Validation Timeout: 60
3. Click OK
Chapter 2: Management and Maintenance
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