Dell S5248F-ON EMC SmartFabric OS10 Switch Configuration Guide for VxRail 4.7 - Page 11
Dual switch without VLT
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• Guarantees fast convergence if either a link or a device fails • 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 about VLT, see the Dell EMC SmartFabric OS10 User Guide Release 10.5.0. 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 8. The links connecting the two switches are configured in an LACP port channel. S5248F-Leaf1A S5248F-Leaf1B LACP 12 VxRail node 1 12 VxRail node 2 100GbE LACP connections 25GbE connections 12 VxRail node n Rack 1 Dual switch topology without VLT 11 Dell EMC SmartFabric OS10 Switch Configuration Guide for VxRail 4.7
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