Reference Guide

17 Dell EMC PowerEdge MX SmartFabric Deployment Guide
3 PowerEdge MX7000 chassis fabrics
The PowerEdge MX7000 chassis includes two I/O fabrics, fabric A and fabric B. The vertically aligned
compute sleds in slots one through eight connect to the horizontally aligned IOMs in slots A1, A2, B1, and B2.
This orthogonal connection method results in a midplane-free design and allows the adoption of new I/O
technologies without the burden of having to upgrade the midplane.
The MX740c supports two mezzanine cards, and the MX840c supports four mezzanine cards. Each
mezzanine card connects to a pair of IOMs installed in the corresponding fabric slots as shown in Figure 12.
For example, port one of mezzanine card A1 connects to fabric slot A1, containing an MX9116n FSE for
example (not shown). Port two of mezzanine card A1 connects to fabric slot A2, containing an MX7116n FEM
for example (not shown).
Dell EMC PowerEdge MX740c mezzanine cards
Table 2 shows the port mapping for fabric A. The MX9116n FSE in slot A1 maps dual-port mezzanine cards
to odd-numbered ports. The MX7116n FEM, connected to the MX9116n FSE, maps to virtual ports with each
port representing a compute sled attached to the MX7116n FEM.
Port mapping example for fabric A
MX7000 slot
MX9116n FSE ports
MX7116n FEM virtual ports
1
Ethernet 1/1/1
Ethernet 1/71/1
2
Ethernet 1/1/3
Ethernet 1/71/2
3
Ethernet 1/1/5
Ethernet 1/71/3
4
Ethernet 1/1/7
Ethernet 1/71/4
5
Ethernet 1/1/9
Ethernet 1/71/5
6
Ethernet 1/1/11
Ethernet 1/71/6
7
Ethernet 1/1/13
Ethernet 1/71/7
8
Ethernet 1/1/15
Ethernet 1/71/8
Note: In this document, only Fabric A is used.