Cisco Catalyst 9300 Series Installing

Figure 11: Example of a StackPower Stack with a Failover Condition
In the following figure, StackPower port B on the center switch has failed and the stack partitions into two
stacks. The top two switches share power, and the bottom switch is now a separate stack. After initial failure
of cable 2, any further failure of a port is considered a double fault, which a StackPower cannot handle. A
double fault could result in unintended high priority ports being shut. If you are unable to physically restore
a bad cable, adjust port priorities and restore any offline supplies, as available.
Figure 12: Example of a Partitioned StackPower Stack with a Failover Condition
Installing the Switch
Rack-Mounting
Installation in racks other than 19-inch racks requires a bracket kit not included with the switch.
Installing a Switch
10
Installing a Switch
Installing the Switch

Cisco Catalyst 9300 Series Specifications

General

Operating System	Cisco IOS XE
Model	Cisco Catalyst 9300 Series
Uplink Interfaces	10G, 25G, 40G
Downlink Interfaces	1G
Stacking Bandwidth	480 Gbps
Power Supply	Redundant power supplies
PoE	UPOE
Port Density	Up to 48 ports
Power over Ethernet (PoE)	UPOE, UPOE+
Security Features	MACsec
Management	Cisco DNA Center, CLI, SNMP
Redundancy	Stacking, redundant power supplies, hot-swappable fans