VLAN

In the Ultra Transcenders books

2V0-17.25AZ-802

Each book explains VLAN in context, with comparison tables and the common traps.

Terms in this definition

• L2

  Layer 2 of the OSI model, the data link layer of frames, VLANs and MACs. An NSX segment is one broadcast domain at this layer.

• Domain

  A way of grouping workspaces by area of the business, in support of a data mesh approach. Items take on their workspace's domain, letting you filter the OneLake catalog by it, and certain tenant settings can be passed to domain admins; domains have no effect on access permissions.

• VMware Cloud Foundation

  Broadcom's platform for private cloud. It unifies management of NSX, vSAN, vSphere, VCF Automation and VCF Operations as one fleet; VVF, by contrast, lacks automation and cloud management.

• TEP

  Short for tunnel endpoint: the interface on an NSX Edge node or ESX host where Geneve overlay tunnels begin and end. Addresses can be static, from DHCP or from an IP pool.

• vSAN

  VMware's software-defined storage, which combines local devices across a cluster's ESX hosts into one shared datastore. Available as OSA or ESA, VCF can use it as principal storage.

• vMotion

  Moves a running VM to another host with no downtime; its storage counterpart, Storage vMotion, relocates the files between datastores instead.

• NSX

  Software that handles networking and security across VCF, covering firewalling, load balancing, NAT, VPCs, overlay segments and Tier-0/1 gateways.

Related terms

• segment

  A layer 2 network in NSX for VM connections. Overlay-backed ones carry traffic in tunnels between TEPs; VLAN-backed ones correspond to a physical VLAN.

• transport zone

  Decides in NSX which VMs may attach to a given segment, by defining the Edge and host nodes it spans; every one is either VLAN or overlay type.

• uplink profile

  NSX settings applied to Edge and host transport nodes covering MTU, transport VLAN, teaming policy and which uplinks are active or standby.