Users Guide

Full Switch mode SmartFabric mode
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The OpenManage Enterprise - Modular console manages the dataplane
conguration.
All switch interfaces are assigned to VLAN 1 by default,
and are in the same L2 bridge domain.
Although front-panel port interfaces operate in L2 mode by default, L2 bridging
is disabled.
All conguration changes are saved in the running
conguration by default. To display the current
conguration, use the show running-
configuration command.
Verify conguration changes using feature-specic show commands, such as
show interface and show vlan, instead of show running-
configuration.
Changing operating modes
To switch an MX9116n Fabric Switching Engine or MX5108n Ethernet Switch between Full Switch and SmartFabric modes, use the
OpenManage Enterprise - Modular graphical user interface.
Full Switch to SmartFabric mode
All Full Switch CLI conguration changes are deleted except for the subset of supported conguration commands that you can also enter
and save in SmartFabric mode (see Operating modes).
SmartFabric to Full Switch mode
When you change to Full Switch mode, only the conguration changes you make using the subset of conguration commands supported in
both modes and save are retained. In addition, the changes you make to port interfaces are deleted, except for admin state
(shutdown/no shutdown), MTU, speed, and auto-negotiation mode.
Restrictions
• VLANs 4001 to 4020 are reserved for internal switch communication and cannot be assigned to an interface.
• In SmartFabric mode, although you can use the CLI to create VLANs 1 to 4000 and 4021 to 4094, you cannot assign interfaces to
them. For this reason, do not use the CLI to create VLANs in SmartFabric mode.
• On an MX7116n Fabric Expander, the two QSFP28-DD uplink interfaces operate only in Ethernet mode. Use the leftmost QSFP28-DD
port 1 on the Fabric Expander to connect to servers with dual-port network interface cards (NICs). Do not use the rightmost QSFP28-
DD port 2; it is reserved for future use to connect to servers with quad-port NICs.
Port groups on I/O modules
A port group is a logical port that consists of either a single or multiple hardware ports, and provides a single cable interface. On PowerEdge
MX IO modules, only the MX9116n Fabric Switching Engine supports port groups:
• Unied port groups
• Double-density QSFP interfaces
• Single-density QSFP interfaces
The MX7116n Fabric Expander Module and MX5108n Ethernet Switch do not support port groups.
Double-density QSFP28 interfaces
On the MX9116n Fabric Switching Engine module, congure a double-density QSFP28 (QSFP28-DD) port in PORT-GROUP mode. A
QSFP28-DD port group consists of two Ethernet 100G ports. The ports do not function as a single 200GE port. Use a QSFP28-DD port to:
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PowerEdge MX Ethernet I/O modules