Constant MAX_TRUSTED_PEER_REPUTATION_CHANGE 

pub const MAX_TRUSTED_PEER_REPUTATION_CHANGE: Reputation = _; // -2_048i32

The maximum reputation change that can be applied to a trusted peer. This is used to prevent a single bad message from a trusted peer to cause a significant change. This gives a trusted peer more leeway when interacting with the node, which is useful for in custom setups. By not setting this to 0 we still allow trusted peer penalization but less than untrusted peers.