TCPis one of the communications protocols that relies on ACK signals to ensure successful data transmissions. When TCPpacketsare sent over a network, each packet contains an ACK number or flag, which is set to 1 in thepacket header. This number indicates the sequence number of the next packet...
In networking, ACK is a crucial component of protocols like TCP, where it ensures reliable, ordered delivery of data packets. When a sender transmits data, the receiver sends an ACK to confirm receipt, preventing packet loss and triggering retransmission only when necessary. It also plays a rol...
An acknowledgment (ACK) is a signal that is passed among the communicating processes, computers, or devices to indicate acknowledgment, or delivery of the message, as a component of a communications protocol in the process of data networking, telecommunications, and computer buses. The acknowledgment...
Networking diagram of PPPoE access The process in which a PPPoE user goes online has two stages: the discovery stage and the PPP session stage. In the discovery stage, a PPPoE server is selected, and the ID of the session to be established is determined. The PPP session stage is the st...
As a result, session traffic exhibits a sawtooth pattern and is bursty. TCP always expects the data in the send window to be sent out as soon as possible. Therefore, after the TCP packet arrival acknowledgment (ACK) arrives, TCP continues to send data by using the sliding window mechanism...
In the following figure, during TCP traffic transmission, the sender sends data packets to the receiver. After receiving a data packet, the receiver returns an ACK packet to the sender, indicating that the data packet is successfully received. If no ACK packet is received within a specific peri...
The proxy firewall intercepts the request, and if its policy allows, replies with a synchronize-acknowledge (SYN-ACK) message packet from the requested server’s IP When the SYN-ACK packet is received by the user’s computer, it sends a final ACK packet to the server’s IP address. Thi...
Networking diagram of PPPoE access The process in which a PPPoE user goes online involves two stages: the discovery stage and the PPP session stage. In the discovery stage, a PPPoE server is selected and the ID of the session to be established is determined. The PPP session stage refers to...
Security Center provides a complete security operations system in the cloud to protect cloud services of multiple types, including computing, networking, storage, database, big data, large model, and identity authentication. Security Center can detect risks in real time such as configuration risks, ...
Nack is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Alzey-Worms district in Rhineland-Palatinate, Germany. Ack (data communications) acknowledgment signal Nack (networking) To acknowledge negatively; to send a NAK signal to. Ack ...