Cisco Nexus 9396PX Hardware Installation Manual page 21

Preparing the Site
For the clearances required for a two-post rack installation, see the following figure.
Figure 4: Clearances Required for a Two-Post Rack Installation
1 Chassis
2 Vertical rack-mount posts and rails
Both the front and rear of the chassis must be open to both aisles for airflow.
Note
3 Chassis width
4 Service clearance required for replacing the
chassis (equals the length of the chassis)
Cisco Nexus 9396PX NX-OS-Mode Switch Hardware Installation Guide
Clearance Requirements
11