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src/_blog: Remove referred to earlier

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Max Inden
2022-02-09 19:20:42 +01:00
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@@ -140,7 +140,7 @@ Before establishing a direct connection using hole punching, *A* first has to es
### 2.2. Coordinate simultaneous dial (DCUtR)
Over the relayed connection established in the previous step, *A* and *B* can now coordinate the hole punch ultimately leading to a direct connection between *A* and *B*. This coordination is happening via the [libp2p DCUtR protocol](https://github.com/libp2p/specs/blob/master/relay/DCUtR.md) which stands for "Direct Connection Upgrade through Relay" protocol. In case you still remember the introduction to this blog post, this is the magical synchronization mechanism, or rather a pretty good synchronization mechanism, referred to earlier.
Over the relayed connection established in the previous step, *A* and *B* can now coordinate the hole punch ultimately leading to a direct connection between *A* and *B*. This coordination is happening via the [libp2p DCUtR protocol](https://github.com/libp2p/specs/blob/master/relay/DCUtR.md) which stands for "Direct Connection Upgrade through Relay" protocol. In case you still remember the introduction to this blog post, this is the magical synchronization mechanism, or rather a pretty good time synchronization mechanism.
There are two stages to do a *direct connection upgrade through a relay*, exchanging *Connect* messages and sending a single *Sync* message.