From 78c896b3b3127515478090c19447e27dc406427e Mon Sep 17 00:00:00 2001 From: Jianfeng Tan Date: Mon, 18 Nov 2019 06:59:50 +0000 Subject: TLDKv2 Signed-off-by: Jianfeng Tan Signed-off-by: Jielong Zhou Signed-off-by: Jian Zhang Signed-off-by: Chen Zhao Change-Id: I55c39de4c6cd30f991f35631eb507f770230f08e --- .../tests/linux/init_rto/init_rto_passive_open.pkt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 test/packetdrill/tests/linux/init_rto/init_rto_passive_open.pkt (limited to 'test/packetdrill/tests/linux/init_rto/init_rto_passive_open.pkt') diff --git a/test/packetdrill/tests/linux/init_rto/init_rto_passive_open.pkt b/test/packetdrill/tests/linux/init_rto/init_rto_passive_open.pkt new file mode 100644 index 0000000..8775c3c --- /dev/null +++ b/test/packetdrill/tests/linux/init_rto/init_rto_passive_open.pkt @@ -0,0 +1,17 @@ +// A simple test of initRTO (sysctl_tcp_synack_rto, default to 1sec) for +// the passive open side. + +// We want the SYN-ACK to be retransmitted 1 sec after the SYN, but +// usually it happens at 1.2 or 1.4 sec due to the fact that the +// kernel only schedules SYN-ACK retransmissions periodically. +// Specifically, the TCP_SYNQ_INTERVAL (period of the SYN-ACK timer) is 200ms. +--tolerance_usecs=405000 + +// Create a listener socket. +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 +0.100 > S. 0:0(0) ack 1 +1.100 > S. 0:0(0) ack 1 -- cgit 1.2.3-korg