Forum Discussion

Javier_124486's avatar
Javier_124486
Icon for Nimbostratus rankNimbostratus
Sep 05, 2016

Link Controller v12.1 Link Creation error. no reply from big3d

Hello, i am trying to create my virtual lab for link controller. Right now i am emulating two ISP links with another BIGIP with LTM on top, with two self ip on different networks.   My link contr...
application delivery
BIG-IP
BIG-IP DNS
Younes_304324's avatar
Younes_304324
Icon for Nimbostratus rankNimbostratus
Feb 22, 2017

Hi Javier,

 

I'm having the same problem : no reply from big3d: timeout. I'm configuring GTM/LTM for 2 link ISPs, so did you fixed the problem.

 

Thank's

 

Javier_124486's avatar
Javier_124486
Icon for Nimbostratus rankNimbostratus
Feb 26, 2017

Hi Younes,

 

Ok, now i may have a better picture. Your problem (The no response from Big3d) might not be GTM but the LTM monitoring system. Just to be sure, if you say that all the LTM objects or some are in blue it means that either there is no monitor assigned to them or that the monitor did not get a valid response yet but did not reach the timeout either. LTM objects are Virtual Server, Nodes and Pool+Pool Members (This also includes the Default gateway pool. In case of dual ISP you have one pool member for each ISP link or router ip and those Pool member become part of the Default Gateway Pool).

 

So, first check why those monitors are not been able to mark the resources up. To do so you just need to open an SSH session against the F5 device and replicate the monitor to see the server response (EG: If the monitor applied to the resource is ICMP, ping the server. If it's TCP on specific port use telnet for that port. If it's HTTP/s use CURL). If you get a proper server response from those and the monitor is not coming up we will T.S. it later.

 

Once we have LTM checked, up and running we will move forward to GTM, but first is LTM (GTM will use those objects).

 

Let me know the outcome.

 

Have a nice day