Connectivity Guide

13 Dell EMC Networking OS10 Enterprise Edition Switch Configuration Guide for VxRail featuring S5248F-ON,
S5232F-ON and S5148F-ON
• Provides link-level resiliency
• Assures high availability
• Allows a single device to use a LAG across two upstream switches
• Provides Layer 2 multipathing
Note: While VxRail nodes use active and standby network adapters instead of LAGs, other servers in the
rack can connect to the VLT switch pair with an LACP LAG for active/active Layer 2 multipathing. For more
information on VLT, see the
OS10 Enterprise Edition User Guide Release 10.4.1.0.
3.1.2 Dual switch without VLT
The configuration of a switch pair without VLT is supported, but it does not provide the advantages of VLT
covered in the previous section.
The switch pair is cabled as shown in Figure 10. The links connecting the two switches are configured in an
LACP port channel.
Rack 1
S5148F-Leaf1A S5148F-Leaf1B
LACP
1
VxRail node n
2
1
2
VxRail node 1
1
VxRail node 2
2
25GbE connections
100GbE LACP connections
Dual switch topology without VLT