Deployment Guide

ManualsBrandsDell ManualsConverged InfrastructureNetworking Solution Resources

21 Leaf-Spine Deployment and Best Practices Guide | Version 1.0

Note: All switch configuration files for the topology in Figure 14 are contained in the attachment named

Example1_config_files.pdf. The files may be edited as needed in a plain text editor and commands pasted

directly into switch consoles. Dell EMC Networking switches start at their factory default settings per

Appendix A.

7.1 S4048-ON leaf switch configuration

The following configuration details are for S4048-Leaf1 and S4048-Leaf2 in Figure 14. The configuration

commands for S4048-Leaf3 and S4048-Leaf4 are similar and are provided in the attachments.

Note: On S4048-ON switches, Telnet is enabled and SSH is disabled by default. Both services require the

creation of a non-root user account to login. If needed, it is a best practice to use SSH instead of Telnet for

security. SSH can optionally be enabled with the command: (conf)#ip ssh server enable.

A user account can be created to access the switch via SSH with the command

(conf)#username ssh_user sha256-password ssh_password

First, configure the serial console enable password and disable Telnet.

S4048-Leaf1

S4048-Leaf2

enable

configure

enable sha256-password enable_password

no ip telnet server enable

enable

configure

enable sha256-password enable_password

no ip telnet server enable

Set the hostname, configure the OOB management interface and default gateway. Enable LLDP and BFD.

Enable RSTP as a precaution. S4048-Leaf1 is configured as the primary RSTP root bridge using the

bridge-priority 0 command. S4048-Leaf2 is configured as the secondary RSTP root bridge using the

bridge-priority 4096 command.

S4048-Leaf1

S4048-Leaf2

hostname S4048-Leaf1

interface ManagementEthernet 1/1

ip address 100.67.187.35/24

no shutdown

management route 0.0.0.0/0

100.67.187.254

protocol lldp

advertise management-tlv management-

address system-description system-name

advertise interface-port-desc

bfd enable

protocol spanning-tree rstp

no disable

bridge-priority 0

hostname S4048-Leaf2