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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

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

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