Deployment Guide

17 Dell EMC Networking Virtualization Overlay with BGP EVPN
4.4 OOB management network connections
The OOB management network is an isolated network for remote management of servers, switches, and
other devices. It is also used to carry heartbeat messages sent between leaf switches configured as VLT
peers.
Dell EMC recommends using at least one S3048-ON switch per 42-RU rack for OOB management network
connections. Each S3048-ON has forty-eight 1GbE Base-T ports for connections to server iDRACs and
switch management ports. In this deployment, each server has an additional 1GbE OOB management
connection for ESXi host management as shown in Figure 13.
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GRN=10G
ACT/LN K A
GRN=10G
ACT/LN K B
S5248F-ON
Leaf 1A
S5248F-ON
Leaf 1B
R740xd
S3048-ON
OOB management
Stack ID
Reset
Stack ID
Reset
1GbE OOB management link
Z9264F-ON
Spine 1
Z9264F-ON
Spine 2
OOB management network connections