Deployment Guide

10 Dell EMC Solutions for Microsoft Azure Stack HCI Networking Guide
The two leaf switches are connected to spine switches upstream (not shown). Using two leaf switches
provides fault tolerance and twice the bandwidth.
Note: Spine switch configuration is beyond the scope of this guide and is covered in Dell EMC Networking
Layer 3 Leaf-Spine Deployment and Best Practices with OS10EE.
3.1 Connections to leaf switches
Each S5248F-ON switch has 48x25GbE ports available for connections to S2D Ready Nodes and other
servers in the rack. Connections from the Ready Nodes to the leaf switches are used for S2D storage traffic,
in-band host management traffic, and VM traffic. All traffic may share the same physical connections
(converged network), or storage traffic may be placed on dedicated network connections (non-converged
network).
Note: All examples in this document use the non-converged network configuration shown in Figure 6.
Two 25GbE connections from each Ready Node, shown in green, are dedicated for S2D storage traffic. In-
band host management and VM traffic share two 10GbE connections from the rNDC (rack server network
daughter card), shown in blue, to the leaf switches.
Stack ID
Stack ID
GRN=10G
ACT/ LNK A
GRN=10G
ACT/ LNK B
25GbE Storage traffic
10GbE In-band mgmt and VM traffic
2x100GbE VLTi (QSFP28-DD DAC)
S5248F-ON
Leaf 1A
S5248F-ON
Leaf 1B
R740xd
S2D Ready
Node
S2D Ready Node with non-converged connections
The Virtual Link Trunking interconnect (VLTi) connections use the two 2x100GbE QSFP28-DD ports available
on each S5248F-ON.