connection resets happening to web services servers when clients uses load balanced url. Need help to capture traffic.
Hi, I'm seeing complaints saying that there are intermittent resets happening when the client uses load balanced url. Out of 60 web request sent from clients in 30 minutes, 8 to 9 requests were getting dropped intermittently. And I'm asked to identify the issue with resets and root cause. Here is the configuration of the VIP. can someone suggest me the best way to capture the traffic when the resets happen. Bear in mind, I cannot run tcpdump for all the 30 minutes as it could generate a huge log file or pcap file. Please suggest me the appropriate procedure or tcpdump commands that I can use to capture the traffic when resets happen and I can give them the reason behind the that resets - can use ringdump process (I don't know how to do it though). Please suggest. thanks. ltm virtual vs_gpdef_app_amvescap_ha { destination 10.196.1.15:http ip-protocol tcp mask 255.255.255.255 persist { simple-18000 { default yes } } pool pool_GPDEF_app_amvescap_ha profiles { tcp-gccp { } } source 0.0.0.0/0 source-address-translation { type automap } vs-index 66 } ltm pool pool_GPDEF_app_amvescap_ha { members { 10.194.232.127:http { address 10.194.232.127 session monitor-enabled state up } 10.194.232.134:http { address 10.194.232.134 session monitor-enabled state up } } monitor http } ltm profile tcp tcp-gccp { abc enabled ack-on-push disabled app-service none close-wait-timeout 5 cmetrics-cache enabled congestion-control high-speed defaults-from tcp deferred-accept disabled delayed-acks enabled dsack disabled ecn disabled fin-wait-timeout 5 idle-timeout 2000 ip-tos-to-client 0 keep-alive-interval 1800 limited-transmit enabled link-qos-to-client 0 max-retrans 8 md5-signature disabled md5-signature-passphrase none nagle enabled pkt-loss-ignore-burst 0 pkt-loss-ignore-rate 0 proxy-buffer-high 16384 proxy-buffer-low 4096 proxy-mss disabled proxy-options disabled receive-window-size 32768 reset-on-timeout enabled selective-acks enabled send-buffer-size 32768 slow-start enabled syn-max-retrans 3 time-wait-recycle enabled time-wait-timeout 2000 timestamps enabled verified-accept disabled zero-window-timeout 20000 }