# Test Networks¶

Mainnet is the main Tezos network, but is not appropriate for testing. Other networks are available to this end. Test networks usually run with different constants to speed up the chain.

There is one test network for the current protocol, and one test network for the protocol which is being proposed for voting. The former is obviously important as users need to test their development with the current protocol. The latter is also needed to test the proposed protocol and its new features, both to decide whether to vote yes and to prepare for its activation. After the intended protocol of a test network is activated (such as Edo for Edo2net), the protocol no longer changes because this could break the workflow of some users while they are testing their development, as they may not be ready for the new protocol. So every time a new protocol is proposed on Mainnet, a new test network is spawned. This also makes synchronization much faster than with a long-lived network.

## Get Free Funds¶

Test networks have a list of built-in accounts with some funds. You can obtain the key to these accounts from a faucet to claim the funds. All networks share the same faucet: https://faucet.tzalpha.net/. The keys obtained from this faucet can be used in all test networks.

## Florencenet¶

• Built-in network alias: florencenet (see Built-In Networks)

• Available on master, will be available in version 9.0

• Run Docker image: wget -O florencenet.sh https://gitlab.com/tezos/tezos/raw/latest-release/scripts/tezos-docker-manager.sh

Florencenet is a test network running the PsFLoren protocol. Florencenet will run until Florence is rejected or replaced by another protocol on Mainnet.

On Florencenet, the following constants differ from Mainnet:

• preserved_cycles is 3 instead of 5;

• blocks_per_cycle is 2048 instead of 4096;

• blocks_per_voting_period is 1024 instead of 32768;

• time_between_blocks is [ 30, 20 ] instead of [ 60, 40 ];

• test_chain_duration is 0 instead of 1966080;

• delay_per_missing_endorsement is 4 instead of 8.

This results in a faster chain than Mainnet:

• 2 blocks per minute;

• a cycle should last about 17 hours;

• a voting period lasts half a cycle and should thus last about 8 hours.

## Edo2net¶

• Built-in network alias: edo2net (see Built-In Networks)

• Available since version 8.3

• Run Docker image: wget -O edo2net.sh https://gitlab.com/tezos/tezos/raw/latest-release/scripts/tezos-docker-manager.sh

Edo2net is a test network running the Edo2Zk protocol. Edo2net will run until Edo is replaced by another protocol on Mainnet.

On Edo2net, the following constants differ from Mainnet:

• preserved_cycles is 3 instead of 5;

• blocks_per_cycle is 2048 instead of 4096;

• blocks_per_voting_period is 2048 instead of 32768;

• time_between_blocks is [ 30, 20 ] instead of [ 60, 40 ];

• test_chain_duration is 61440 instead of 1966080;

• delay_per_missing_endorsement is 4 instead of 8.

This results in a faster chain than Mainnet:

• 2 blocks per minute;

• a cycle should last about 17 hours;

• a voting period lasts 1 cycle and should thus also last about 17 hours.

## Future Networks¶

At some point, there will be a proposal for a successor to the current protocol (let’s call this new protocol P). After P is injected, a new test network (let’s call it P-net) will be spawned. It will run alongside the latest test network until either P is rejected or activated. If P is rejected, P-net will end, unless P is immediately re-submitted for injection. If, however, P is activated, the previous test network will end and P-net will continue on its own.

# Old Networks¶

## Delphinet¶

Delphinet was a test network running the Delphi protocol. Following the activation of the Edo protocol replacing Delphi on Mainnet, Delphinet stopped being maintained on Febuary 28th, 2021.

## Dalphanet¶

Dalphanet was an experimental test network spawned during summer 2020 featuring Sapling and baking accounts. Since this test network required a modified protocol environment, it was not available in any release branch. It was available in experimental branch dalpha-release.

## Carthagenet¶

Carthagenet was a test network running the Carthage protocol. Following the activation of the Delphi protocol replacing Carthage on Mainnet, Carthagenet stopped being maintained on December 12th, 2020.

## Babylonnet¶

Babylonnet was a test network which ran the Babylon protocol. It was spawned after the injection of the proposal for Babylon. It ended its life on March 31st, 2020 as Carthage replaced Babylon on Mainnet on March 5th, 2020.

## Alphanet¶

Alphanet was the test network before Babylonnet. At the end of its life, it was running the Athens protocol. Bootstrap nodes were shut down after the Babylon protocol was activated on Mainnet.

## Zeronet¶

Zeronet is a generic name for an unstable test network that is sometimes spawned when the need arises. It is currently not running. When it was running, it was used to test protocol proposals that were in development. It was reset frequently.