3 ms·
Oh, an easy one : https://en.wikipedia.org/wiki/Synchronous_Data_Link_Control https://en.wikipedia.org/wiki/Synchronous_Data_Link_Control
by dboreham 4y ago
Oh, an easy one : https://en.wikipedia.org/wiki/Synchronous_Data_Link_Control https://en.wikipedia.org/wiki/Synchronous_Data_Link_Control