Cisco Nexus 9508 Hardware Installation Manual page 74

Overview of Supervisor Modules
If there are two supervisors installed in the chassis, both must be the same type or you can mix types as
Note
shown in the following table:
Table 1:
Active Supervisor
Supervisor A
Supervisor B
Supervisor A
Supervisor B
Supervisor A
Supervisor B
Supervisor A+
Supervisor B+
A Cisco Nexus 9508 chassis with -R line cards requires supervisor B modules.
Supervisor modules are automatically powered up and started with the switch.
To understand the terms used for the supervisors, see the following table.
Module Terms
module-27 and module-28
sup-1 and sup-2
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
64
Standby Supervisor
Supervisor A
Supervisor B
Supervisor B
Supervisor A
Supervisor A+
Supervisor B+
Supervisor B+
Supervisor B+
Usage Description
Fixed
• Module-27 refers to the supervisor module in chassis
slot 27 (labeled as SUP 1 on the chassis).
• Module-28 refers to the supervisor module in chassis
slot 28 (labeled as SUP 2 on the chassis).
Fixed
• sup-1 refers to the supervisor module in the SUP 1 slot
(slot 27 in the CLI output).
• sup-2 refers to the supervisor module in the SUP 2 slot
(slot 28 in the CLI output.
Managing the Switch
Is Combination Allowed?
Yes
Yes
No--allowed only if Supervisor A
can failover to Supervisor B.
No--allowed only if Supervisor A
can failover to Supervisor B.
Yes
Yes
No--allowed only if Supervisor
A+ can failover to Supervisor B+.
No--allowed only if Supervisor
A+ can failover to Supervisor B+.