Setup Guide

23 Dell EMC PowerEdge MX SmartFabric Configuration and Troubleshooting Guide
3.7.3 Two MX9116n Fabric Switching Engines in the same chassis
This placement should only be used in environments with a single chassis, with the switches in either slots
A1/A2 or slots B1/B2. A SmartFabric cannot include a switch in Fabric A and a switch in Fabric B.
IOM placement – 2 x MX9116n in the same chassis
3.8 Switch-to-Switch cabling
When operating in SmartFabric mode, each switch pair runs a VLT interconnect (VLTi) between them. For the
MX9116n, QSFP28-DD port groups 11 and 12 (eth1/1/37-1/1/40) are used.
For the MX5108n, ports 9 and 10 are used. Port 10 will operate at 40GbE instead of 100GbE because all
VLTi links must run at the same speed.
NOTE: The VLTi ports are not user selectable and the connection topology is enforced by the SmartFabric
engine.
MX9116n SmartFabric VLTi cabling
MX5108n SmartFabric VLTi cabling