pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/36091?usp=email )

Change subject: Update pcap pkt size to 1520 bytes ......................................................................

Update pcap pkt size to 1520 bytes

I see packets of 1520 bytes in the generated pcap running under the docker setup. This happens when a lot of IPA concurrent clients send messages and end up in the same TCP packet due to naggle algorithm.

Change-Id: I362371508ba83acc48376b6ed012a97a59d4b31b --- M ttcn3-dumpcap-start.sh M ttcn3-tcpdump-start.sh 2 files changed, 16 insertions(+), 3 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/91/36091/1

diff --git a/ttcn3-dumpcap-start.sh b/ttcn3-dumpcap-start.sh index eb390fd..a1e64fc 100755 --- a/ttcn3-dumpcap-start.sh +++ b/ttcn3-dumpcap-start.sh @@ -80,7 +80,7 @@ fi done

-$CMD -s 1500 -n ${ADDL_ARGS} -w "$TTCN3_PCAP_PATH/$TESTCASE.pcapng" >$TTCN3_PCAP_PATH/$TESTCASE.pcapng.stdout 2>&1 & +$CMD -s 1520 -n ${ADDL_ARGS} -w "$TTCN3_PCAP_PATH/$TESTCASE.pcapng" >$TTCN3_PCAP_PATH/$TESTCASE.pcapng.stdout 2>&1 & PID=$! echo $PID > $PIDFILE_PCAP

diff --git a/ttcn3-tcpdump-start.sh b/ttcn3-tcpdump-start.sh index c4905d9..36aa320 100755 --- a/ttcn3-tcpdump-start.sh +++ b/ttcn3-tcpdump-start.sh @@ -84,9 +84,9 @@

# Log stderr to CMD_OUTFILE and a dedicated error log file tee $CMD_OUTFILE < $FIFO > $CMD_OUTFILE_ERR & -CMD_STR="$CMD -s 1500 -n -i any -w "$TTCN3_PCAP_PATH/$TESTCASE.pcap" >$CMD_OUTFILE 2>$FIFO &" +CMD_STR="$CMD -s 1520 -n -i any -w "$TTCN3_PCAP_PATH/$TESTCASE.pcap" >$CMD_OUTFILE 2>$FIFO &" eval $CMD_STR -# $CMD -s 1500 -n -i any -w "$TTCN3_PCAP_PATH/$TESTCASE.pcap" >$CMD_OUTFILE & +# $CMD -s 1520 -n -i any -w "$TTCN3_PCAP_PATH/$TESTCASE.pcap" >$CMD_OUTFILE & PID=$! echo $PID > $PIDFILE_PCAP if [ -f $CMD_OUTFILE_ERR ] && [ $(wc -l $CMD_OUTFILE_ERR | awk '{print $1}') -ne 0 ]; then