Cisco Catalyst 9300 Series Installing

Data Stack Bandwidth and Partitioning Examples
This section provides examples of data stack bandwidth and possible data stack partitioning. The figure shows
a data stack of switches that provides full bandwidth and redundant StackWise cable connections.
Figure 4: Example of a Data Stack with Full Bandwidth Connections
This figure shows an example of a stack of switches with incomplete StackWise cabling connections. This
stack provides only half bandwidth and does not have redundant connections.
Figure 5: Example of a Data Stack with Half Bandwidth Connections
The figures below show data stacks of switches with failover conditions. In this figure, the StackWise cable
is bad in link 2. Therefore, this stack provides only half bandwidth and does not have redundant connections.
Figure 6: Example of a Data Stack with a Failover Condition
In this figure, link 2 is bad. Therefore, this stack partitions into two stacks, and the top and bottom switches
become the active switch in the stack. If the bottom switch is a member (not active or standby switch), it
reloads.
Installing a Switch
5
Installing a Switch
Data Stack Bandwidth and Partitioning Examples

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