> [!info] LibPQWalReceiverConnect > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_client_libpqwalreceiverconnect.png"></td><td><b>Wait Category</b></td><td>Client</td></tr><tr><td><b>Mechanism</b></td><td><code>WalReceiverMain</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Distributed/Redistribute">Redistribute</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/Network">Network</a>, <a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3"><b>Replication Pipeline Connection</b>. The WAL Receiver on the standby is waiting to establish a network socket and handshake with the primary's WAL Sender. (Analogized by a focused red panda on a branch waiting to plug a wobbly cable connector into a socket held by a squirrel in a distant tree).</td></tr></table>