#### 17.1.5.5 Starting Multi-Source Replicas

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 Once you have added channels for all of the replication sources, issue a [`START REPLICA`](start-replica.html) (or before MySQL 8.0.22, [`START SLAVE`](start-slave.html)) statement to start replication. When you have enabled multiple channels on a replica, you can choose to either start all channels, or select a specific channel to start. For example, to start the two channels separately, use the [**mysql**](mysql.html) client to issue the following statements:

```
mysql> START SLAVE FOR CHANNEL "source_1";
mysql> START SLAVE FOR CHANNEL "source_2";
Or from MySQL 8.0.22:
mysql> START REPLICA FOR CHANNEL "source_1";
mysql> START REPLICA FOR CHANNEL "source_2";
```

 For the full syntax of the [`START REPLICA`](start-replica.html) command and other available options, see [Section 13.4.2.8, “START REPLICA Statement”](start-replica.html).

 To verify that both channels have started and are operating correctly, you can issue [`SHOW REPLICA STATUS`](show-replica-status.html) statements on the replica, for example:

```
mysql> SHOW SLAVE STATUS FOR CHANNEL "source_1"\G
mysql> SHOW SLAVE STATUS FOR CHANNEL "source_2"\G
Or from MySQL 8.0.22:
mysql> SHOW REPLICA STATUS FOR CHANNEL "source_1"\G
mysql> SHOW REPLICA STATUS FOR CHANNEL "source_2"\G
```

