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Forum Discussion

bcrogerz's avatar
bcrogerz
Icon for Cirrus rankCirrus
Oct 09, 2012

Able to telnet to virtual when the pool members are down ?

Hello Folks,   I am trying to understand a strange behaviour seen on the LTMs.   Configs   ---------------------------------------------------   virtual abdc {   pool abdc   d...
management
monitoring
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Oct 09, 2012
Roger, just in case you don't find that document clear enough I'll quickly break it down for you;

 

 

1) You can telnet to the Virtual Server even with the Pool Members down. This is the full proxy in effect, the BIG-IP is terminating your connection and will establish a different one to a Pool Member when it needs to.

 

2) The TCP three way handshake is completed but the moment you send a HTTP request on this connection, you'll then get the RST. This is normal behavior for a Standard Virtual Server with a HTTP Profile assigned.

 

3) Use a HTTP monitor (that sends a HTTP request) and this won't occur.