Connectivity Guide

23 Dell EMC Networking OS10 Enterprise Edition Switch Configuration Guide for VxRail featuring S5248F-ON,

S5232F-ON and S5148F-ON

7 Configure switches

This section covers switch configuration for S5148F-ON switches in the different topologies. Commands for

all examples are provided as attachments to this guide.

7.1 Dual switch with VLT

This example uses a four-node VxRail cluster connected to a pair of switches configured with VLT as shown

below. Dell EMC recommends using this topology.

25GbE connections

100GbE VLTi connections,

ports 1/1/53-54

Rack 1

S5148F-Leaf1A S5148F-Leaf1B

VLTi

1/1/20 19 18

1/1/17 18 19 20

VxRail node 1

VxRail node 2

VxRail node 3

VxRail node 4

Note: The jump box/DNS server, not

shown, is connected to port 1/1/9 on

each switch.

Four-node cluster connected to a pair of switches configured with VLT

The commands in the following sections are run to complete the configuration of both leaf switches. The port

numbers used in the configuration commands correspond to those shown in Figure 14.

Note: The commands in the tables below should be entered in the order shown. All commands are provided

in the file attachments named S5148F-1A-vlt.txt and S5148F-1B-vlt.txt.

7.1.1 General settings

Configure the hostname, OOB management IP address and default gateway. Specify an NTP server

accessible by the switch. In this example, this is an NTP server on the OOB management network, with a

different IP address than that used by the VxRail nodes on the in-band management network. Enable RSTP

as a precaution against loops. Configure S5148F-Leaf1A as the primary RSTP root bridge using the

spanning-tree rstp priority 0 command and S5148F-Leaf1B as the secondary RSTP root bridge

using the spanning-tree rstp priority 4096 command.