Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 77
MX9116n Fabric Switching Engine - QSFP28-DD port groups, Fabric Expander.
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• Connect to a Fabric Expander to extend the fabric. • Connect to an Ethernet rack server or storage device. • Connect to another switch or router. Figure 1. MX9116n Fabric Switching Engine - QSFP28-DD port groups QSFP28-DD port groups are 1 to 12 and contain physical ports 1/1/17 to 1/1/40. Server-facing ports are 1/1/1 to 1/1/16. QSFP28-DD Ethernet interfaces support Fabric Expander mode (FEM) and native Ethernet mode. • In FEM mode, an 8x25GE interface connects only to an attached Fabric Expander using supported cables. • In native Ethernet mode, an interface connects to an upstream switch, rack server, or other Ethernet device. By default, QSFP28-DD port groups 1 to 9 are configured in FEM mode with 8x25GE breakout interfaces enabled. QSFP28-DD port groups 10 to 12 are configured in native mode with 2x100GE breakout interfaces enabled. • For information about how to configure single-density QSFP28 Ethernet port groups 13 and 14, see Single-density QSFP28 interfaces. • For information about how to configure unified port groups 15 and 16 to operate in Ethernet or Fibre Channel mode, see Unified port groups. 1 To configure a QSFP28-DD port interface, enter PORT-GROUP mode from CONFIGURATION mode. Enter 1/1 for node/slot. The QSFP28-DD port-group range is 1 to 12. port-group node/slot/port-group 2 (Optional) To verify the current QSFP28-DD port-group configuration, enter the show port-group command. OS10(config)# do show port-group Port-group Mode Ports FEM port-group1/1/1 Eth 25g-8x 17 18 FEM port-group1/1/2 Eth 25g-8x 19 20 FEM port-group1/1/3 Eth 25g-8x 21 22 FEM port-group1/1/4 Eth 25g-8x 23 24 FEM port-group1/1/5 Eth 25g-8x 25 26 FEM port-group1/1/6 Eth 25g-8x 27 28 FEM port-group1/1/7 Eth 25g-8x 29 30 FEM port-group1/1/8 Eth 25g-8x 31 32 FEM port-group1/1/9 Eth 25g-8x 33 34 FEM port-group1/1/10 Eth 100g-2x 35 36 - port-group1/1/11 Eth 100g-2x 37 38 - port-group1/1/12 Eth 100g-2x 39 40 - ... To reset a QSFP28-DD port group to its default setting, enter the no mode command in PORT-GROUP mode. This command sets QSFP-DD port groups 1 to 9 to 8x25GE FEM mode and QSFP-DD port groups 10 to 12 to 2x100GE mode. no mode 3 To activate a QSFP28-DD interface for Ethernet operation, enter the mode Eth command in PORT-GROUP mode. mode Eth {100g-2x | 50g-4x | 40g-2x | 25g-8x fabric-expander-mode | 25g-8x | 10g-8x} • 100g-2x - Split a QSFP28-DD port into two 100GE interfaces. • 50g-4x - Split a QSFP28-DD port into four 50GE interfaces. • 40g-2x - Split a QSFP28-DD port into two 40GE interfaces. • 25g-8x fabric-expander-mode - Split a QSFP28-DD port into eight 25GE interfaces for connection only to an MX7116n Fabric Expander. • 25g-8x - Split a QSFP28-DD port into eight 25GE interfaces. PowerEdge MX Ethernet I/O modules 77