Cisco WS-C6506 Software Manual page 704

Configuring Redundant Supervisor Engines on the Switch
•
Images that are compatible with all modules except Gigabit Ethernet switching modules are as follows:
•
Images that are compatible with Gigabit Ethernet switching modules but not compatible with
10/100BASE-T modules are as follows:
•
Images that are compatible with all modules except the SFM/SFM2 and fabric-enabled modules are as
follows:
•
Attempting to run incompatible image versions could result in configuration loss.
Note
When you install two supervisor engines, the first supervisor engine to come online becomes the active
Note
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:
Task
Enable or disable high availability.
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
23-12
Supervisor Engine 2
6.1(3) and 6.1(4)
–
6.2(2) and 6.2(3)
–
6.3(2) and 6.3(3)
–
Supervisor Engine 1
– 5.4(3) and 5.4(4)
– 5.5(3) and 5.5(5)
5.5(4) and 5.5(5)
–
Supervisor Engine 1
5.5(6a) and 5.5(7)
–
Supervisor Engine 2
6.3(4) and 6.3(5)
–
6.3(6) and 6.3(7)
–
Chapter 23
Command
set system highavailability {enable | disable}
Configuring Redundancy
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