Hi, To resume situation we have 6 servers, they target the VS on tcp port service and we have pool memebre with two servers we notice that some servers among 6 can not target the VS, the issue is random NB: the VS is still reachable at all time ( ping and services ) the same for the pool member how you can see the service life for a VS on a sepecifique port? to see if we have lost of service many thanks in advance

Hi, i add details : the source servers and the Vs are on The same vlan no Firewall thanks

Hi, we have pertubation when the source servers try to connect VS if we run telnet the result is Source Server : >>>> crmpr03a:root:/ > telnet 10.x.x.x. 8783 Trying... telnet: connect: A remote host did not respond within the timeout period but at the same momnet if we run telnet directly to backends server the result is OK crmpr03a:root:/ > telnet 10.x.x.x 8783 Trying... Connected to 10.x.x.x.. Escape character is '^]'.

Hi, when i try to see log in var/log ltm.gz in wincp i did not find the date when issue appear. i find only recent date ! is there command on CLI to see log at date when issue appear ? end is there any command to see life services of VS ? thank you

Hi, i add details : the source servers and the Vs are on The same vlan no Firewall thanks

Can you ping the VS from all the 6 source servers? You can add health monitor to the pool members which show the status of the virtual. Any events that brings down VS, will be logged in /var/log/ltm.

VS does not respond for some servers ( random )\ how you can see the service life for a VS ?

18 Replies

KOR_28_183115
Nimbostratus
Aug 03, 2015
Hi, i add details : the source servers and the Vs are on The same vlan no Firewall thanks
KOR_28_183115
Nimbostratus
Aug 03, 2015
Hi, we have pertubation when the source servers try to connect VS if we run telnet the result is Source Server : >>>> crmpr03a:root:/ > telnet 10.x.x.x. 8783 Trying... telnet: connect: A remote host did not respond within the timeout period but at the same momnet if we run telnet directly to backends server the result is OK crmpr03a:root:/ > telnet 10.x.x.x 8783 Trying... Connected to 10.x.x.x.. Escape character is '^]'.
KOR_28_183115
Nimbostratus
Aug 04, 2015
Hi, when i try to see log in var/log ltm.gz in wincp i did not find the date when issue appear. i find only recent date ! is there command on CLI to see log at date when issue appear ? end is there any command to see life services of VS ? thank you
KOR_28_183115
Nimbostratus
Aug 04, 2015
Hi, i add details : the source servers and the Vs are on The same vlan no Firewall thanks
kunjan
Nimbostratus
Aug 04, 2015
Can you ping the VS from all the 6 source servers? You can add health monitor to the pool members which show the status of the virtual. Any events that brings down VS, will be logged in /var/log/ltm.
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  Hi Kunjan, thank you for your reply Hi, yes we can ping the Vs from all servers at all time actually we have one monitor health is configured default tcp type : tcp Parent Monitor: tcp interval 5 seconds / timeout 16 seconds wich monitor can add to show status ? BR,
kunjan_118660
Cumulonimbus
Aug 04, 2015
Can you ping the VS from all the 6 source servers? You can add health monitor to the pool members which show the status of the virtual. Any events that brings down VS, will be logged in /var/log/ltm.
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  Hi Kunjan, thank you for your reply Hi, yes we can ping the Vs from all servers at all time actually we have one monitor health is configured default tcp type : tcp Parent Monitor: tcp interval 5 seconds / timeout 16 seconds wich monitor can add to show status ? BR,
kunjan_118660
Cumulonimbus
Aug 04, 2015
TCP monitor should be fine. So do you see VS in green status? Can you try configure 'Source Address Translation" under Virtual Server configuration to be 'Auto Map'?
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  when we run telent command and we have no response from vs the status is green !! how why i dont undrestand !? the vs has already configured with SNAT
kunjan
Nimbostratus
Aug 04, 2015
TCP monitor should be fine. So do you see VS in green status? Can you try configure 'Source Address Translation" under Virtual Server configuration to be 'Auto Map'?
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  when we run telent command and we have no response from vs the status is green !! how why i dont undrestand !? the vs has already configured with SNAT
kunjan
Nimbostratus
Aug 04, 2015
Can you try telnet from BigIP? (yes VS is green, still) What do you configure for SNAT? Can share the VS config? tmsh list ltm virtual VS
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  can you send the comand pleas to sho vs configuratio i did not try telnet from BIGIP when the issue apear only from servers source :( BR,
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  [root@Big-Ip2:Active:In Sync] config [root@Big-Ip2:Active:In Sync] config telnet 10.1.22.80 8783 Trying 10.1.22.80... Connected to 10.1.22.80. Escape character is '^]'. no problem at the moment is the issue appear again i will try
kunjan_118660
Cumulonimbus
Aug 04, 2015
Can you try telnet from BigIP? (yes VS is green, still) What do you configure for SNAT? Can share the VS config? tmsh list ltm virtual VS
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  can you send the comand pleas to sho vs configuratio i did not try telnet from BIGIP when the issue apear only from servers source :( BR,
- KOR_28_183115
  Nimbostratus
  Aug 04, 2015
  [root@Big-Ip2:Active:In Sync] config [root@Big-Ip2:Active:In Sync] config telnet 10.1.22.80 8783 Trying 10.1.22.80... Connected to 10.1.22.80. Escape character is '^]'. no problem at the moment is the issue appear again i will try