Dell Networking S6000 System Manual de usuario descargar pdf (Pagina 28)

28 Network Virtualization with Dell Infrastructure and VMware NSX | Version 1.2

Table 2 Logical Networks

Logical Network

Use

Web Tier (VNI 5001)

Hosts web servers.

App Tier (VNI 5002)

Hosts applications with business logic. Web servers in the Web Tier talk to

the applications in the App Tier.

DB Tier (VNI 5003)

Hosts databases that store the data relevant to the web apps. The

applications on the App Tier talk to the databases in the DB Tier to store

and retrieve information.

Bridged-App Tier (VNI 5004)

Logical network (VNI 5004) that bridges to a non-virtualized host on the

physical network (VLAN 31). The DLR Control VM is used to provide this L2

Gateway bridging service.

Transit Network (VNI 5000)

Used to peer with the external networks and allows the NSX Edge Services

Router and DLR to exchange routing information.

NSX Edge Gateway Services can provide an additional firewall boundary between the Web Tier logical

switch, the other logical switches, and the external networks. This is represented by a perimeter firewall

service in addition to the distributed firewall capabilities provided on every logical switch. Figure 21 shows

how this would logically look if it was desired to utilize the perimeter firewall capabilities.

Note, the NSX Perimeter Edge provides services as a VM as compared to the NSX DLR, the VXLAN, and the

Distributed Firewall ESXi kernel modules which provide capabilities within the hypervisor kernel at close to

line-rate.

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Dell Networking S6000 System Manual de usuario Pagina 28