![]() ![]() Stock OpenSSH has a maximum receive buffer size of 2MB but this really ends up being closer to ~1.2MB. The end results is that the effective size of the receive buffer is the minimum of the receive buffers of the two sliding windows. ![]() The means that you have the SSH sliding window riding on top of the TCP sliding window. The most common implementation basically reimplements sliding windows. This means that SSHv2 has to implement its own flow control algorithm. ![]() As such, the SSH channels are essentially unaware of the underlying flow control algorithm used by TCP. First off, it's important to keep in mind that SSHv2 is a multiplexed protocol - multiple channels over a single TCP connection. I'd like to start with a couple of background items. I'm the author of HPN-SSH and I was asked by a commenter here to weigh in. ![]()
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