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Dell EMC recommended switch configuration
11 Dell EMC Networking S4248-ON Switch Configuration Guide for Dell EMC Unity, SC Series, and PS Series
iSCSI SANs | SCG4077
Example: Configure a QSFP28 port as a 4 x 25GbE breakout.
OS10(config)# interface breakout 1/1/<port-number> map 25g-4x
Use the following command to check the port interface status:
OS10# show interface status
2.7 Disable link auto-negotiation (SC Series SAN with T6225 or T62100
adapter)
Note: This section applies only to SC Series iSCSI SANs that use the Chelsio
®
T6225 or T62100 adapter.
Before connecting the network cable between the Chelsio T6225 (25GbE) or T62100 (100GbE) storage
controller adapter and the switch, disable link auto-negotiation on the switch. For example, if the T6225
adapter will be connected to the breakout port eth 1/1/47:1, use the following procedure to disable link auto-
negotiation:
OS10(config)# interface ethernet 1/1/47:1
OS10(conf-if-eth1/1/47:1)# negotiation off
OS10(conf-if-eth1/1/47:1)# exit
2.8 Enable switch ports
By default, switch ports for the S4248-ON switch are enabled and are configured for switchport mode
access. If choosing to reconfigure the ports, use the following steps.
Option 1: Enable ports individually by entering the port number.
OS10# configure terminal
OS10(config)#interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# switchport mode access
OS10(conf-if-eth1/1/1)# no shutdown
OS10(conf-if-eth1/1/1)# exit
Option 2: Enable multiple ports at once using the range parameter.
The following command configures 10GbE switch ports (1/1/1 to 1/1/40).
OS10# configure terminal
OS10(config)# interface range ethernet 1/1/1–1/1/40
OS10(conf-range-eth1/1/1-1/1/40)# switchport mode access
OS10(conf-range-eth1/1/1-1/1/40)# no shutdown
OS10(conf-range-eth1/1/1-1/1/40)# exit