Prisma SD-WAN uses mapping of standard
services and Prisma SD-WAN data centers to allow flexibility when
creating network policy rules, while accounting for uniqueness across
sites. For example, an administrator may want to create a single
network policy that directs all HTTP and SSL Internet bound traffic
through the primary Palo Alto Prisma Access for Networks in the
region if it is available. If not available, it may leverage the
backup Palo Alto Prisma Access for Networks in the region. Now,
the administrator will have different primary and backup cloud security
service endpoints based on their geographic location. Regardless
of the site location, the intent and the policy rules will remain
This is where the concept of endpoints, groups, and domains come
into play. To leverage the underlying resources available to an administrator,
it is important to understand how an endpoint, group, and domain
work in the Prisma SD-WAN system.
Endpoint—A service endpoint is a label representing a
specific location or network service. It can be of type Prisma SD-WAN,
specifically Prisma SD-WAN Data Centers for Data Center transit
services, or of type standard.
Group—A service group is a label representing a set of common
service endpoint types. This service group label will be used in
network policy rules to express intent to allow or force traffic
to the defined service endpoints. It can be of type Prisma SD-WAN
or standard and may contain zero or more service endpoints.
Domain—A domain is a collection of groups which can be assigned
to a set of sites. There can be multiple domains defined, but a
site may only be assigned to one domain at a time.
A site will be able to use only the endpoints configured
in a group within a domain that is assigned to the site. The same
group, however, can be in multiple domains with different service
endpoints, allowing you to use the same policy across different sites
utilizing different endpoints.
Let us further explore the concept of endpoints, groups, and
domains using the following illustration.
The illustration displays how endpoints added to a group are
associated with a domain. The domains are then bound to a site,
thus mapping standard services or Prisma SD-WAN data centers uniquely
for each site.
A group, with different endpoints, can be mapped to one
or more domains and a domain can be mapped to one or more sites.
Another example to illustrate the concept is shown. For a customer
with sites in North America and Europe that has one Prisma SD-WAN-enabled
data center in each region and has adopted a Palo Alto Prisma Access
for Networks within each region, with two geographic locations in
each region, domain mapping is accomplished as follows:
The same endpoint can be added to more than one group.
Only one active group and one backup group may be used in a network