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website: Update FAQ about UDP multicast

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Armon Dadgar 2015-03-09 10:01:50 -07:00
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@ -42,3 +42,11 @@ those privileges that make sense for your deployment.
Using the SCADA service is optional. SCADA is only enabled by opt-in.
See the [Atlas integration guide](/docs/guides/atlas.html) for more details.
# Q: Does Consul rely on UDP Broadcast or Multicast?
Consul uses the [Serf](https://serfdom.io) gossip protocol, which only
uses UDP unicast. Broadcast and Multicast are rarely available in a multi-tenant
or cloud network environment. For that reason, Consul and Serf were both
designed to avoid any dependence on those capabilities.