Too much TCP retransmitted and TCP duplicate on server Oracle Solaris 10
I have problem with oracle solaris 10 running on oracle sparc T4-2 server.
Os information: 5.10 Generic_150400-03 sun4v sparc sun4v
Output from tcpstat.d script
When i ping test from server to another server, sometimes server hold icmp packet 10 -> 30s same times with too much tcp retransmitt and tcp duplicate on server.
Code:
Fri Apr 4 14:49:47 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=853. time=0.547 ms
Fri Apr 4 14:49:48 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=854. time=5.22 ms
Fri Apr 4 14:49:49 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=855. time=0.513 ms
Fri Apr 4 14:49:50 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=856. time=0.618 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=857. time=8.12e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=858. time=7.12e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=859. time=6.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=860. time=5.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=861. time=4.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=862. time=3.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=863. time=2.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=864. time=1.13e+03 ms
Fri Apr 4 14:49:59 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=865. time=130. ms
Fri Apr 4 14:50:00 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=866. time=0.606 ms
Fri Apr 4 14:50:01 ICT 2014: 64 bytes from 172.16.11.13: icmp_seq=867. time=10.3 ms
When i ping test from server to another server, sometimes server hold icmp packet 10 -> 30s same times with too much tcp retransmitt and tcp duplicate on server.
Server connect to coreswitch, all data from server go through checkpoint firewall. When i capture packet from server, example using ping command: icmp request and reply done well but ping command delay 10->30s to show result
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