Configuration Guidelines And Restrictions - Nokia 7210 Configuration Manual

CLI Usage

2.8.4 Configuration Guidelines and Restrictions

The following are the limitations of the configuration rollback feature for the
7210 SAS-R6, 7210 SAS-R12, and 7210 SAS-Mxp.
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• If a warning prompt (y/n) is displayed when a rollback revert is initiated, it is
highly suggested to respond 'no' to the warning prompt the first time, save a
rollback checkpoint before attempting this rollback revert, and execute the
rollback>revert again and respond 'yes'. If the rollback encounters problems, a
revert to the saved checkpoint can be used to return to the initial configuration
state.
• Resource profile policy changes cannot be rolled back. That is, if there is a
change in resource policy/parameters between active configuration and
checkpoint, rollback will not proceed.
• PTP is not supported.
• For SAP ingress QoS, due to the slice information available in the .sdx file,
whenever there is a change in ingress QoS policy attached to a SAP, or if there
are any additional SAPs in the checkpoint file, all SAPs are torn down and
rebuilt. The user will be prompted before this occurs.
• A SAP that has a change in egress QoS policy will be shut down and will do a
no shutdown after a delay.
• During rollback, all ports and SAPs are shut down and brought back up again.
This brings down traffic and control protocols that have been initiated or are
transitioning through the node during rollback.
• Rollback is not permitted when there is a change to port-scheduler-mode.
• Back-to-back rollbacks, particularly scaled ones, are not recommended. Users
must allow sufficient time for the system to process the current rollback before
initiating a new one.
• On the 7210 SAS-R6 and 7210 SAS-R12, if there are additional differences in
resource profile templates between two rollback points, the rollback procedure
does not roll back any changes. An error message is displayed asking the user
to undo these resource profile template changes manually.
• Rollback is not allowed between two rollback points if there are changes in the
slice allocation in the same resource profile template. On the 7210 SAS-R6 and
7210 SAS-R12, the restriction also applies for a template that is not associated
with any card.
• On the 7210 SAS-R6 and 7210 SAS-R12, if the resource profile templates are
the same across two different rollback points but the attachment to the card is
different, it may result in resource allocation failures in scaling scenarios.
Use subject to Terms available at: www.nokia.com
7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
© 2021 Nokia.
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