VMware Cloud Foundation 4.5

5.2 5.1 5.0 4.5
Deutsch Français Italiano 日本語 English

vSphere Distributed Switch Design for the Management Domain

By default, the default management vSphere cluster uses a single vSphere Distributed Switch with two physical network cards. The switch design includes traffic types on the switch, the number of required NICs, and MTU configuration.
This design uses the default switch configuration. However, you can use vSphere Distributed Switch profiles in the
Deployment Parameter Workbook
 or use a JSON input file and the VMware Cloud Builder API to implement configurations according to your environment needs. For vSphere Distributed Switches, VMware Cloud Foundation supports the vSphere maximum numbers.
Default vSphere Distributed Switch Configuration
Property
Value
Number of vSphere Distributed Switches
1
Number of Physical NIC Ports
2
Network I/O Control
MTU size
9000
Physical Uplinks on the Default vSphere Distributed Switch
Physical NIC
Function
vmnic0
Uplink
vmnic1
Uplink
Design Decisions for vSphere Distributed Switch
Design ID
Design Decision
Design Justification
Design Implication
VCF-MGMT-VCS-VDS-001
Use a single vSphere Distributed Switch per cluster.
  • Reduces the complexity of the network design.
  • Reduces the size of the fault domain.
Increases the number of vSphere Distributed Switches that must be managed.
VCF-MGMT-VCS-VDS-002
Configure the MTU size of the vSphere Distributed Switch to 9000 for jumbo frames.
  • Supports the MTU size required by system traffic types.
  • Improves traffic throughput.
When adjusting the MTU packet size, you must also configure the entire network path (VMkernel ports, virtual switches, physical switches, and routers) to support the same MTU packet size.

Content feedback and comments