Cisco Catalyst 4500 Series - Catalyst 6000;6500 Supervisor Engine Signals and Pinouts; Console Port Mode Switch Operation; Console Port Mode 1 Signaling and Pinouts

Contents
11
Software Configuration Guide—Release IOS XE 3.9.xE and IOS 15.2(5)Ex
Changeversion Process 7-12
Changeversion: Quick Option 7-12
Scheduled Changeversion: “in” and “at” Options 7-12
Changeversion Deployment Scenario 7-13
Aborting an In-Progress Changeversion Procedure 7-13
Guidelines for Performing ISSU 7-13
Versioning Capability in Cisco IOS Software to Support ISSU 7-13
Compatibility Matrix 7-14
SNMP Support for ISSU 7-15
Compatibility Verification Using Cisco Feature Navigator 7-15
Performing the ISSU Process 7-15
Upgrading ISSU to Cisco IOS XE 3.4.0SG/15.1(2)SG from a Prior Release 7-16
Downgrading ISSU from Cisco IOS XE 3.4.0SG/15.1(2)SG to a Prior Release 7-17
Verifying the ISSU Software Installation 7-18
Verifying Redundancy Mode Before Beginning the ISSU Process 7-19
Verifying the ISSU State Before Beginning the ISSU Process 7-20
Loading New Cisco IOS Software on the Standby Supervisor Engine 7-21
Switching to the Standby Supervisor Engine 7-24
Stopping the ISSU Rollback Timer (Optional) 7-26
Loading New Cisco IOS Software on the New Standby Supervisor Engine 7-27
Using changeversion to Automate an ISSU Upgrade 7-29
Aborting a Software Upgrade During ISSU 7-34
Configuring the Rollback Timer to Safeguard Against Upgrade Issues 7-35
Displaying ISSU Compatibility Matrix Information 7-36
Displaying ISSU Compatibility Matrix Information 7-40
Related Documents 7-42
Configuring the Cisco IOS XE In Service Software Upgrade Process 8-1
Related Documents 8-2
Prerequisites to Performing ISSU 8-2
About Performing ISSU 8-3
Stateful Switchover 8-4
NSF 8-6
ISSU Process 8-7
Performing an ISSU Upgrade: 2 Methods 8-12
Changeversion Process 8-13
Changeversion: Quick Option (LV to INIT) 8-13
Scheduled Changeversion: “in” and “at” Options 8-13
Changeversion Deployment Scenario 8-14
Aborting an In-Progress Changeversion Procedure 8-14