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// SPDX-License-Identifier: GPL-2.0
// Test PRR-slowstart implementation. The sender sends 20 packets. Packet
// 1 to 4, and 11 to 16 are dropped.
`./defaults.sh`
// Establish a connection.
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0
+0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+.01 < . 1:1(0) ack 1 win 320
+0 accept(3, ..., ...) = 4
// Write 20 data segments.
+0 write(4, ..., 20000) = 20000
+0 > P. 1:10001(10000) ack 1
// Receive first DUPACK, entering PRR part
+.01 < . 1:1(0) ack 1 win 320 <sack 4001:5001,nop,nop>
+0 > . 10001:11001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:6001,nop,nop>
+0 > . 11001:12001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:7001,nop,nop>
+0 > . 1:1001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:8001,nop,nop>
+0 > . 1001:2001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:9001,nop,nop>
+0 > . 2001:3001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:10001,nop,nop>
+0 > . 3001:4001(1000) ack 1
// Enter PRR CRB
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:11001,nop,nop>
+0 > . 12001:13001(1000) ack 1
+.002 < . 1:1(0) ack 1 win 320 <sack 4001:12001,nop,nop>
+0 > . 13001:14001(1000) ack 1
// Enter PRR slow start
+.01 < . 1:1(0) ack 1001 win 320 <sack 4001:12001,nop,nop>
+0 > P. 14001:16001(2000) ack 1
+.002 < . 1:1(0) ack 1001 win 320 <sack 2001:12001,nop,nop>
+0 > . 1001:2001(1000) ack 1
+0 > . 16001:17001(1000) ack 1
// inflight reaches ssthresh, goes into packet conservation mode
+.002 < . 1:1(0) ack 1001 win 320 <sack 2001:13001,nop,nop>
+0 > . 17001:18001(1000) ack 1
+.002 < . 1:1(0) ack 1001 win 320 <sack 2001:14001,nop,nop>
+0 > . 18001:19001(1000) ack 1
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