OOB management is the second major part of the topology.
The Out-of-Band (OOB) management network is an isolated network for remote management of hardware including servers, switches, storage arrays, and rack power distribution units using their dedicated management ports.
The OOB management network enables connections to the PowerSwitch SFS UI. It also enables switch console access through SSH and rack server console access through the Integrated Dell Remote Access Controller (iDRAC). This network is also used to carry heartbeat messages between switches that are configured as VLT peers. For OOB management network connections, one N3248TE-ON switch is installed in each rack, as shown in the following figure:
Four 10 GbE SFP+ ports are available on each N3248TE-ON for use as uplinks to the OOB management network core.
1 GbE BASE-T ports on each N3248TE-ON are connected downstream to hardware management ports on each device in the rack, which includes PowerEdge server node iDRACs and switch management ports. Management ports on other devices (such as storage array management ports, and rack power distribution unit (PDU) management ports) are also connected to this network.
When running SmartFabric OS10, the N3248TE-ON functions as an OOB management switch with its 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. At a minimum, Dell Technologies recommends changing the admin password to a complex password during the first login.