Channels are for the developer to decide how the data is sent. Typically the reliable channels are the most commonly used, but comes at a higher data cost. So if you are sending something all the time and you don't necessarily care if you lose a packet or two, the Unreliable channel might be a good option for you.
public enum Channel : byte
{
/// <summary>
/// It ensures that the data is received but the order is not guaranteed.
/// </summary>
ReliableUnordered,
/// <summary>
/// Packets are guaranteed to be in order but not guaranteed to be received.
/// </summary>
UnreliableSequenced,
/// <summary>
/// Packets are guaranteed to be received in order. -- Default channel
/// </summary>
ReliableOrdered,
/// <summary>
/// Only the last sent packet is guaranteed to be received.
/// </summary>
ReliableSequenced,
/// <summary>
/// Packets are not guaranteed to be received nor in order.
/// </summary>
Unreliable
}
