I have an application which requires to perform many transactions and I want some non block producing node to connect the BP nodes? I want to start non-producing blocks and connect to block producing nodes.
Create a non producer node and then to connect it to net, You can follow this link to understand: https://steemit.com/eos/@fundurian/learning-diary-connecting-to-eos-mainnet
This tutorial helps in connecting to mainnet, if you wish to connect to testnet you can follow the same steps as mentioned in the tutorial. But, modify config.ini for nodeos and genesis.json to testnet configurations. You can check out Jungle-Testnet for that. Check out: http://jungle.cryptolions.io/#p2p
for P2P peer addresses on testnet.
I hope this helps!