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The out-of-band (OOB) management network is an isolated network for remote management of hardware. This includes VxRail nodes, servers, switches, storage arrays, and rack power distribution units (PDUs) using their dedicated management ports.
For OOB management network connections, one S3048-ON switch is installed in each rack, as shown in Figure 12.
Figure 12. OOB management network connections
The OOB management network also enables connections to the PowerSwitch SFS GUI. It also enables switch console access using SSH, and VxRail node console access using the iDRAC. This network is also used to carry heartbeat messages between switches configured as VLT peers, and for OMNI to communicate with the SFS master switch.
Note: OOB management switches are not part of the SmartFabric.
Note: This guide covers the equipment shown in Racks 1 and 2. Other devices and racks shown in Figure 12 are for illustration purposes only.
Four 10GbE SFP+ ports are available on each S3048-ON for use as uplinks to the OOB management network core.
1GbE BASE-T ports on each S3048-ON are connected downstream to hardware management ports on each device in the rack. This includes the VxRail node iDRAC ports and switch management ports. Management ports on other devices, such as PowerEdge server iDRAC ports, storage array management ports, and rack PDU management ports, are also connected to this network.
OOB management switch configuration is not detailed in this guide. The S3048-ON can function as an OOB management switch with its OS10 factory default configuration. By default, all ports are in switchport mode, in VLAN 1, administratively up, and rapid per-VLAN spanning tree plus (RPVST+) is enabled.
Note: For reference, devices on the OOB Management network in this guide use the 100.67.0.0/16 IP address block. These addresses are examples only. Use IP addresses suitable for your environment.