Congestion window是什么
时间: 2023-09-30 13:11:07 浏览: 34
Congestion window(拥塞窗口)是一种拥塞控制算法中的一个重要概念,用于限制发送方发送数据的速率。它是指在任意时刻,发送方可以发送的最大数据量。当网络拥塞时,拥塞窗口会缩小,以降低发送方的发送速率,从而避免网络拥塞的发生。当网络拥塞状况得到改善时,拥塞窗口会逐渐增大,以提高发送方的发送速率。拥塞窗口是 TCP 协议中实现拥塞控制的重要手段之一,可以保证网络的可靠性和公平性。
相关问题
计算机网络门限值是什么
计算机网络中,门限值通常用于控制网络流量。门限值是一个设定的阈值,当达到或超过这个阈值时,就会采取某种措施来控制网络流量,以防止网络拥塞。
例如,在TCP协议中,门限值被称为拥塞窗口(Congestion Window),它控制着发送方在一个特定时间内可以发送的数据量。当网络拥塞时,拥塞窗口会缩小,以减少发送方发送数据的速度,从而降低网络拥堵的可能性。
在实际应用中,门限值可以根据网络情况动态调整,以适应不同的网络环境和流量负载。
TCP window full
When a TCP window is full, it means that the receiving device is unable to accept any more data from the sender until it has processed the data that it has already received. This can occur when the sending device is sending data at a faster rate than the receiving device can process it, or when there is network congestion causing delays in the transmission of data. When the TCP window is full, the sender will stop sending data until it receives an acknowledgement from the receiver indicating that it has processed the data and has space available in its window to receive more data. This process is known as flow control and is essential for preventing network congestion and ensuring reliable data transmission.