diff options
Diffstat (limited to 'test/packetdrill/tests/linux/early_retransmit/er-quick-2pkt-sack.pkt')
| -rw-r--r-- | test/packetdrill/tests/linux/early_retransmit/er-quick-2pkt-sack.pkt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/packetdrill/tests/linux/early_retransmit/er-quick-2pkt-sack.pkt b/test/packetdrill/tests/linux/early_retransmit/er-quick-2pkt-sack.pkt new file mode 100644 index 0000000..6d0652c --- /dev/null +++ b/test/packetdrill/tests/linux/early_retransmit/er-quick-2pkt-sack.pkt @@ -0,0 +1,27 @@ +// Test quick ER (no delay) with 2 packets outstanding, receiver sending SACKs. + +// Enable quick early retransmit. +`sysctl -q net.ipv4.tcp_early_retrans=1` + +0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 +0.000 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 +0.000 bind(3, ..., ...) = 0 +0.000 listen(3, 1) = 0 + +0.100 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7> +0.100 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 6> +0.200 < . 1:1(0) ack 1 win 257 +0.200 accept(3, ..., ...) = 4 + +0.200 write(4, ..., 2920) = 2920 +0.200 > P. 1:2921(2920) ack 1 +0.300 < . 1:1(0) ack 1 win 257 <sack 1461:2921,nop,nop> +0.300 > . 1:1461(1460) ack 1 // quick Early Retransmit +0.400 < . 1:1(0) ack 2921 win 257 + +0.500 close(4) = 0 +0.500 > F. 2921:2921(0) ack 1 +0.600 < F. 1:1(0) ack 2922 win 257 +0.601 > . 2922:2922(0) ack 2 + +0.700 `sysctl -q net.ipv4.tcp_early_retrans=3` |