mirror of https://github.com/status-im/consul.git
34 lines
1.7 KiB
Plaintext
34 lines
1.7 KiB
Plaintext
---
|
|
layout: docs
|
|
page_title: Federated Network Areas (Enterprise)
|
|
description: >-
|
|
Network areas connect individual datacenters in a WAN federation, providing an alternative to connecting every datacenter. Learn how to support hub-and-spoke network topologies in a WAN federated Consul deployment.
|
|
---
|
|
|
|
# Consul Enterprise Advanced Federation
|
|
|
|
<EnterpriseAlert>
|
|
This feature requires
|
|
self-managed Consul Enterprise.
|
|
Refer to the{' '}
|
|
<a href="/consul/docs/enterprise#consul-enterprise-feature-availability">enterprise feature matrix</a>
|
|
{' '}for additional information.
|
|
</EnterpriseAlert>
|
|
|
|
Consul's core federation capability uses the same gossip mechanism that is used
|
|
for a single datacenter. This requires that every server from every datacenter
|
|
be in a fully connected mesh with an open gossip port (8302/tcp and 8302/udp)
|
|
and an open server RPC port (8300/tcp). For organizations with large numbers of
|
|
datacenters, it becomes difficult to support a fully connected mesh. It is often
|
|
desirable to have topologies like hub-and-spoke with central management
|
|
datacenters and "spoke" datacenters that can't interact with each other.
|
|
|
|
[Consul Enterprise](https://www.hashicorp.com/consul) offers a [network
|
|
area mechanism](https://learn.hashicorp.com/tutorials/consul/federation-network-areas) that allows operators to
|
|
federate Consul datacenters together on a pairwise basis, enabling
|
|
partially-connected network topologies. Once a link is created, Consul agents
|
|
can make queries to the remote datacenter in service of both API and DNS
|
|
requests for remote resources (in spite of the partially-connected nature of the
|
|
topology as a whole). Consul datacenters can simultaneously participate in both
|
|
network areas and the existing WAN pool, which eases migration.
|