// Congestion control feedback types
const QuicTag kQBIC = TAG('Q', 'B', 'I', 'C'); // TCP cubic
-const QuicTag kTSTP = TAG('T', 'S', 'T', 'P'); // Timestamp
-// Congestion control options
+// Connection options (COPT) values
const QuicTag kTBBR = TAG('T', 'B', 'B', 'R'); // Reduced Buffer Bloat TCP
const QuicTag kRENO = TAG('R', 'E', 'N', 'O'); // Reno Congestion Control
const QuicTag kIW10 = TAG('I', 'W', '1', '0'); // Force ICWND to 10
// encryption algorithms
const QuicTag kCGST = TAG('C', 'G', 'S', 'T'); // Congestion control
// feedback types
-const QuicTag kCOPT = TAG('C', 'O', 'P', 'T'); // Congestion control options
+const QuicTag kCOPT = TAG('C', 'O', 'P', 'T'); // Connection options
// kLOSS was 'L', 'O', 'S', 'S', but was changed from a tag vector to a tag.
const QuicTag kLOSS = TAG('L', 'O', 'S', 'A'); // Loss detection algorithms
const QuicTag kICSL = TAG('I', 'C', 'S', 'L'); // Idle connection state