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Performing manual version rollback
Ste
Command
Remarks
1. Enters system view. system-view —
2. Perform a manual version
rollback.
issu rollback slot
slot-number
Optional
By default, automatic rollback is performed to revert
to the previous version.
The slot-number argument provided in this command
must be the same as that specified in the issu load.
During an ISSU upgrade process, if you modify the rollback timer after executing issu load, the new rollback
timer does not take effect for this ISSU process.
Displaying and maintaining ISSU
Task Command Remarks
Display information about the
rollback timer.
display issu rollback-timer Available in any view
Display the ISSU state. display issu state Available in any view
Display version compatibility
information.
display version comp-matrix [ file
upgrading-filename ]
Available in any view
ISSU configuration example
Current network status and requirements analysis
Current network status
1. As shown in Figure 2, access layer switches Switch A, Switch B, and Switch C connect to user
networks.
2. Distribution layer switches Switch D, Switch E, and Switch form an IRF virtual switch. The member ID
of the master is 1, and those of the subordinate switches are 2 and 3 respectively.
3. To ensure high availability, configure cross-device link aggregation using the following guidelines so
that every three physical links with the same color between the IRF member switches and access
switches are aggregated as one logical link.
• On the IRF virtual switch, create three dynamic aggregation groups. Ports in aggregation group 1
connect to Switch A, ports in aggregation group 2 connect to Switch B, and ports in aggregation group
3 connect to Switch C.
• On Switch A, create aggregation group 1 that corresponds to aggregation group 1 on the IRF virtual
switch.
• On Switch B, create aggregation group 2 that corresponds to aggregation group 2 on the IRF virtual
switch.
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