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- 시스템 TCP 접속 수가 증가하고 있는데 조치해야할 방법 문의드립니다.
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날짜: 04-22-2014 09:08 AM
날짜: 04-22-2014 09:08 AM
시스템 TCP 접속 수가 증가하고 있는데 조치해야할 방법 문의드립니다.
안녕하세요.
HP-UX B.11.31 U ia64 Server 입니다.
netstat로 상태를 보았을 때, Established된 연결이 약 2,000개 이상입니다. 아직은 아주 가끔이지만 끊김 발생되는 것 같구요. 연결은 계속 증가하고 있습니다. 시스템 파라미터에서 조정해 주어야 할 것이 있을까요?
NIC Port는 1Gbps이고 2개 본딩되어 있습니다.
다음 명령으로 보면 수치가 아래와 같이 나옵니다. 약 10일 동안 측정된 수치입니다.
# netstat -p tcp
tcp:
315589194 packets sent
305210704 data packets (234056557981 bytes)
454700 data packets (502832776 bytes) retransmitted
7492109 ack-only packets (5197800 delayed)
0 URG only packets
725 window probe packets
51 window update packets
2888264 control packets
147189715 packets received
126009975 acks (for 234061954607 bytes)
575803 duplicate acks
0 acks for unsent data
105188780 packets (63161669884 bytes) received in-sequence
1 completely duplicate packet (8 bytes)
114 packets with some dup data (3564 bytes duped)
159 out of order packets (7715 bytes)
12 packets (8418575356 bytes) of data after window
0 window probes
1443378 window update packets
18 packets received after close
1 segment discarded for bad checksum
0 bad TCP segments dropped due to state change
1219286 connection requests
186451 connection accepts
1405737 connections established (including accepts)
1412711 connections closed (including 8601 drops)
2316 embryonic connections dropped
124325624 segments updated rtt (of 124325624 attempts)
105205 retransmit timeouts
4553 connections dropped by rexmit timeout
725 persist timeouts
1052 keepalive timeouts
309 keepalive probes sent
1 connection dropped by keepalive
0 connect requests dropped due to full queue
74391 connect requests dropped due to no listener
0 suspect connect requests dropped due to aging
0 suspect connect requests dropped due to rate