doc: Document The Things Industries Gateway Protocol

doc/content/gateways/concepts/ttigw/_index.md

@@ -0,0 +1,21 @@
+---
+title: "The Things Industries Gateway Protocol"
+description: ""
+weight: -1
+---
+
+{{% ttigw %}} is a proprietary protocol developed by The Things Industries. Unlike other protocols like [{{% lbs %}}]({{< relref "../lora-basics-station" >}}) and [{{% udp-pf %}}]({{< relref "../udp" >}}), {{% ttigw %}} can only be used by gateways provisioned by The Things Industries.
+
+<!--more-->
+
+{{% ttigw %}} is the most secure and bandwidth efficient protocol, designed for deploying gateways in public locations that may be using a metered backhaul like cellular.
+
+## Security
+
+{{% ttigw %}} allows for managing the gateway from {{% tts %}} in a true zero-touch fashion. Gateways supporting this protocol therefore do not require a local user interface for any local configuration, meaning that it is impossible to tamper with configuration even with physical access to the gateway. Since all configuration is done in {{% tts %}}, you don't need to be near the gateway for onboarding and configuration.
+
+{{% ttigw %}} enabled gateways use a TLS client certificate signed by The Things Industries to securely authenticate with any {{% tts %}} deployment: Cloud, Enterprise, Sandbox and Open Source.
+
+## Supported Gateways
+
+[{{% ttigpro %}}]({{< relref "../../models/thethingsindoorgatewaypro" >}}) supports {{% ttigw %}}.

doc/content/reference/packet-forwarder/_index.md

@@ -6,7 +6,7 @@ This reference describes support for various Packet Forwarders in {{% tts %}}.
 
 <!--more-->
 
-{{% tts %}} supports [{{% lbs %}}]({{< ref "/gateways/concepts/lora-basics-station" >}}). There is also legacy support for the [{{% udp-pf %}}]({{< ref "/gateways/concepts/udp" >}}), but it will be removed in the future.
+{{% tts %}} supports [{{% ttigw %}}]({{< ref "/gateways/concepts/ttigw" >}}) and [{{% lbs %}}]({{< ref "/gateways/concepts/lora-basics-station" >}}). There is also legacy support for the [{{% udp-pf %}}]({{< ref "/gateways/concepts/udp" >}}), but it will be removed in the future.
 
 {{% lbs %}} is the preferred way of connecting gateways to {{% tts %}}. The advantages of {{% lbs %}} over the legacy UDP Packet Forwarder are centralized update and configuration management for gateway fleets, TLS and token-based authentication, centralized channel plan management, and no dependency on local timekeeping.
 
@@ -15,4 +15,3 @@ The following packet forwarders are **not** supported:
 - [The Things Network Packet Forwarder](https://github.com/TheThingsNetwork/packet_forwarder)
 - [Kersing Packet Forwarder](https://github.com/kersing/packet_forwarder)
 - [Chirpstack Gateway Bridge](https://www.chirpstack.io/gateway-bridge/)
-

doc/themes/the-things-stack/layouts/shortcodes/ttigw.html

@@ -0,0 +1 @@
+{{- printf "The Things Industries Gateway Protocol" -}}