iv
Upgrading BootWare without performing ISSU ········································································································· 96
Upgrading system software without performing ISSU (method 1) ············································································ 97
Upgrading system software without performing ISSU (method 2) ············································································ 97
Installing hotfixes ···························································································································································· 98
Basic concepts ······················································································································································· 98
Patch states ····························································································································································· 99
Hotfix configuration task list ······························································································································· 101
Installation prerequisites ····································································································································· 101
Installing and running patches in one step ······································································································· 102
Installing a patch step by step ··························································································································· 103
Uninstalling a patch step by step ······················································································································· 104
Displaying and maintaining software upgrade ········································································································ 105
Software upgrade examples ······································································································································· 105
Non-ISSU software upgrade example ··············································································································· 105
Hotfix configuration example ····························································································································· 106
Performing ISSU ······················································································································································ 108
Overview ······································································································································································· 108
ISSU upgrade procedure ···································································································································· 108
ISSU states ···························································································································································· 109
System software version rollback ······················································································································· 110
Performing an ISSU ······················································································································································ 110
ISSU upgrade task list ········································································································································· 110
Examining and preparing the member switches for the ISSU ········································································ 111
Displaying version compatibility ························································································································ 111
Performing an ISSU for an incompatible version ····························································································· 112
Setting the ISSU version rollback timer ············································································································· 112
Performing a manual version rollback ·············································································································· 112
Displaying and maintaining ISSU ······················································································································ 113
ISSU upgrade example ··············································································································································· 113
Network status ····················································································································································· 113
Network requirements ········································································································································· 113
Upgrade procedure ············································································································································ 114
Managing the device ·············································································································································· 121
Configuring the device name ····································································································································· 121
Changing the system time ··········································································································································· 121
Configuration guidelines ···································································································································· 121
Configuration procedure ···································································································································· 124
Enabling displaying the copyright statement ············································································································ 124
Configuring banners ···················································································································································· 125
Banner input methods ········································································································································· 125
Configuration procedure ···································································································································· 126
Configuring the exception handling method ············································································································· 126
Rebooting the device ··················································································································································· 126
Rebooting devices immediately at the CLI ········································································································ 127
Scheduling a device reboot ······························································································································· 127
Scheduling jobs ···························································································································································· 128
Job configuration methods ································································································································· 128
Configuration guidelines ···································································································································· 128
Scheduling a job by using the non-modular method ······················································································· 129
Scheduling a job by using the modular method ······························································································ 129
Scheduled job configuration example ·············································································································· 130
Setting the preferred airflow direction ······················································································································· 132
Setting the port status detection timer ························································································································ 132
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