Troubleshooting
Problem
while transferring file from particular AIX server to the windows server using SCP connections get stalled
Cause
Due to the missing packets inbetween the servers
Diagnosing The Problem
Here is detailed data collection steps needed for the scp stalled issue.
on client LPAR sending side:
# pmtu display > /tmp/pmtudisplay.out
# entstat -d <sending Adapter > > /tmp/entstat2.before
# tcpdump -w /tmp/tcpdump.out -i <sending Interface>
# iperf -c <Traget IP> -t60 -P 8 -m > /tmp/iperfclient.out
# entstat -d <sending Adapter > > /tmp/entstat2.after
# kill -9 < Process ID > // Find PID of the tcpdump and kill it
on VIOS sending side:
# ifconfig <SEA interface> up // If there is no interface on SEA
# entstat -d <sending Adapter> /tmp/entstat2.before
# tcpdump -w /tmp/tcpdump.out -i <Sending Interface>
# entstat -d <sending Adapter > > /tmp/entstat2.after
# kill -9 < Process ID > // Find PID of the tcpdump and kill it
on windows machine:
start an sniffer/port mirror with equivalent flags as AIX.
on the VIOS receiving side: zurviocdc029
# ifconfig <SEA Interface> up // If there is no interface on SEA
# entstat -d <Receiving Adapter> > /tmp/entstat.before
# tcpdump -w /tmp/tcpdump.out -i <Receiving Interface>
# iperf -s -P 8 -m > /tmp/iperfserver.out
# entstat -d <Receiving Adapter> > /tmp/entstat28.after
# kill -9 < Process ID > // Find PID of the tcpdump and kill it
Tar the files and upload for review.
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Document Information
Modified date:
17 June 2018
UID
isg3T1026605