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Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
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Chapter 22 Configuring Redundancy
Configuring Redundant Supervisor Engines
Note
When you install two supervisor engines, the first supervisor engine to come online becomes the
active module; the second supervisor engine goes into standby mode. If two supervisor engines are
installed in your system, at power up the supervisor engine in slot 1 becomes active, and the
supervisor engine in slot 2 enters standby mode. If the software versions of the two supervisor
engines are different, or if the NVRAM configuration of the two supervisor engines is different, and
if you do not enable versioning, the active supervisor engine automatically downloads its software
image and configuration to the standby supervisor engine.
CLI Commands
This section describes the CLI commands for high availability and versioning.
Enabling or Disabling High Availability
High availability is disabled by default. To enable or disable high availability, perform this task in
privileged mode:
This example shows how to enable high availability:
Console> (enable)
set system highavailability enable
System high availability enabled.
Console> (enable)
This example shows how to disable high availability:
Console> (enable)
set system highavailability disable
System high availability disabled.
Console> (enable)
Enabling or Disabling High-Availability Versioning
High-availability versioning is disabled by default. To enable or disable high-availability versioning,
perform this task in privileged mode:
This example shows how to enable high-availability versioning:
Console> (enable)
set system highavailability versioning enable
Image versioning enabled.
Console> (enable)
Task
Command
Enable or disable high availability.
set system highavailability
{
enable
|
disable
}
Task
Command
Enable or disable high-availability versioning.
set system highavailability versioning
{
enable
|
disable
}
