In relation to Ethereum, a Layer 2 (L2) network is a type of scaling solution that aims to increase the amount of transactions on the Ethereum network, and reduce gas fees.
The Ethereum Layer 1 (L1) network is the Ethereum blockchain itself. This means that it operates directly on the Ethereum blockchain. As the number of users on the network continues to grow, this can lead to slower processing times and higher fees. L2 networks have been designed as a solution to reduce the load on the Ethereum network. This works by offloading some of the transactions to a separate network that is still connected to the Ethereum network, like a side street to reduce the number of cars on a single road.
An example of a L2 scaling solution, supported on Kraken, is the Arbitrum One network.We support various cryptocurrencies on this network such as, Arbitrum (ARB), Dai (DAI), Ethereum (ETH), GMX (GMX), Tether (USDT) and USD Coin (USDC).
Lightning Network:
The Lightning network is a special case of the Multi Network and Single method scenario. Lightning is considered to be an off-chain, Layer 2, solution, meaning that transfers are done via a new network of payment channels anchored in Bitcoin’s blockchain. Find out more about Bitcoin's Lightning Network on our Learn center.
For a guide on deposit BTC to your Kraken account via the Lightning network visit: How do I send bitcoin on the Lightning Network?