Citrix Systems server 4 Manual Do Utilizador

161

Achieving the correct networking setup is crucial to a successful CloudPlatform installation. This
section contains information to help you make decisions and follow the right procedures to get your
network set up correctly.

CloudPlatform provides two styles of networking:.

Provides a single network where guest isolation can be provided through layer-3 means such as
security groups (IP address source filtering).

For more sophisticated network topologies. This network model provides the most flexibility in defining
guest networks, but requires more configuration steps than basic networking.

Each zone has either basic or advanced networking. Once the choice of networking model for a zone
has been made and configured in CloudPlatform, it can not be changed. A zone is either basic or
advanced for its entire lifetime.

The following table compares the networking features in the two networking models.

Number of networks

Single network

Multiple networks

Firewall type

Physical

Physical and Virtual

Load balancer

Physical

Physical and Virtual

Isolation type

Layer 3

Layer 2 and Layer 3

VPN support

No

Yes

Port forwarding

Physical

Physical and Virtual

1:1 NAT

Physical

Physical and Virtual

Source NAT

No

Physical and Virtual

Userdata

Yes

Yes

Network usage monitoring

sFlow / netFlow at physical
router

Hypervisor and Virtual Router

DNS and DHCP

Yes

Yes

The two types of networking may be in use in the same cloud. However, a given zone must use either
Basic Networking or Advanced Networking.

Different types of network traffic can be segmented on the same physical network. Guest traffic can
also be segmented by account. To isolate traffic, you can use separate VLANs. If you are using
separate VLANs on a single physical network, make sure the VLAN tags are in separate numerical
ranges.