Network Alert See https://en.bitcoin.it/wiki/Alert_system to learn the history of Bitcoin alert system. We implement the alert system in CKB for urgent situation, In CKB early stage we may meet the same crisis bugs that Bitcoin meet, in urgent case, CKB core team can send an alert message across CKB P2P network, the client will show the alert message, the other behaviors of CKB node will not change.
Network Alert will be removed soon once the CKB network is considered mature.