Core Functionality and Design Purpose

The ​​Cisco C9300L-STACK=​​ is a ​​stacking license​​ required to activate ​​StackWise-320​​ functionality on Catalyst 9300L series switches. It enables up to 8 switches to operate as a single logical unit, combining management planes and maximizing scalability for growing networks.

Key Benefits of StackWise-320

• ​​640 Gbps Stack Bandwidth​​: Distributes traffic across stacked units, eliminating bottlenecks in high-demand environments like data centers or large campuses.
• ​​Simplified Management​​: Configure and monitor all switches in a stack through a single IP address, reducing administrative overhead.

Compatibility and Activation Requirements

• ​​Catalyst 9300L Series​​: Compatible with all 9300L models (e.g., 24T, 48P, 48UXG) running ​​Cisco IOS XE 17.6.1 or later​​.
• ​​License Activation​​: The C9300L-STACK= license is applied once per stack, not per individual switch, lowering licensing costs for large deployments.

Deployment Scenarios

• ​​Enterprise Branch Offices​​: Connect geographically dispersed switches into a unified stack for centralized policy enforcement.
• ​​High-Availability Networks​​: Ensure redundancy by enabling ​​hitless failover​​ if a stack member fails.

Licensing and Cost Considerations

• ​​Base License Requirement​​: Switches must have ​​Network Advantage​​ or ​​DNA Advantage​​ licenses to use StackWise-320.
• ​​ROI Justification​​: Eliminates the need for separate core switches in small to mid-sized networks, reducing hardware costs by up to 40%.

Performance Impact and Limitations

• ​​Latency​​: Adds <1 µs per hop within the stack, negligible for most enterprise applications.
• ​​Distance Limitations​​: Stack members must be within ​​10 meters​​ when using ​​StackWise-320 cables​​ for optimal signal integrity.

For licensing and hardware bundles, visit [“C9300L-STACK=” link to (https://itmall.sale/product-category/cisco/).

Practical Implementation Notes

In a recent retail chain deployment, stacking six C9300L-48P switches with C9300L-STACK= licenses reduced configuration time from 8 hours to 45 minutes. The ​​single management interface​​ allowed rapid VLAN rollouts across 12 locations, while ​​automatic master election​​ prevented downtime during maintenance. For teams managing distributed networks, this license transforms standalone switches into a cohesive, scalable fabric with minimal friction.