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| author |   Jianfeng Tan <henry.tjf@antfin.com> | 2019-11-18 06:59:50 +0000 |
|---|---|---|
| committer | Jianfeng Tan <henry.tjf@antfin.com> | 2020-03-05 01:31:33 +0800 |
| commit | 78c896b3b3127515478090c19447e27dc406427e (patch) | |
| tree | d6d67d4683e9ca0409f9984a834547a572fb5310 /test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt | |
| parent | e4380f4866091fd92a7a57667dd938a99144f9cd (diff) | |
TLDKv2dev-next-socket
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
Signed-off-by: Jielong Zhou <jielong.zjl@antfin.com>
Signed-off-by: Jian Zhang <wuzai.zj@antfin.com>
Signed-off-by: Chen Zhao <winters.zc@antfin.com>
Change-Id: I55c39de4c6cd30f991f35631eb507f770230f08e
Diffstat (limited to 'test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt')
| -rw-r--r-- | test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt b/test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt new file mode 100644 index 0000000..5d05264 --- /dev/null +++ b/test/packetdrill/tests/linux/early_retransmit/er-delayed-3pkt-sack.pkt @@ -0,0 +1,28 @@ +// Test delayed ER with 3 packets outstanding, receiver sending SACKs. + +// Enable delayed early retransmit. +`sysctl -q net.ipv4.tcp_early_retrans=2` + +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, ..., 4380) = 4380 +0.200 > P. 1:4381(4380) ack 1 +0.300 < . 1:1(0) ack 1 win 257 <sack 1461:2921,nop,nop> +0.300 < . 1:1(0) ack 1 win 257 <sack 1461:4381,nop,nop> +0.325 > . 1:1461(1460) ack 1 // delayed Early Retransmit at RTT/4 = 25ms +0.425 < . 1:1(0) ack 4381 win 257 + +0.500 close(4) = 0 +0.500 > F. 4381:4381(0) ack 1 +0.600 < F. 1:1(0) ack 4382 win 257 +0.601 > . 4382:4382(0) ack 2 + +0.700 `sysctl -q net.ipv4.tcp_early_retrans=3` |