Dell EMC SmartFabric OS10 User Guide Release 10.5.0

Spanned VLAN

Any VLAN configured on both the VLT peer nodes is known as a spanned VLAN. The VLT interconnect (VLTi) port is automatically added as a member of the spanned VLAN. Any adjacent router connected to at least one VLT node on a spanned VLAN subnet is directly reachable from both the VLT peer nodes at the L3 level.

• Spanned VLAN L3 interface: If you enable PIM on each of the spanned VLAN L3 interfaces on both VLT nodes, the interface is a spanned VLAN L3 interface.
  • Spanned VLT VLAN L3 interface: Includes all spanned L3 VLANs that have at least one VLT port that is configured as a port channel member.
  • Spanned non-VLT VLAN L3 interface: Includes all spanned VLANs that do not have VLT ports configured as port channel members.
• Nonspanned L3 interface: All point-to-point interfaces or L3 VLANs that do not have VLT ports configured as port channel members.

For more information, see Deployment considerations.