TDE error log says Data Link failure Need help please

[raist3001]

Our clients TDE is losing connection to our SIP servers on a daily basis. The error log shows Data Link Failure then then Data Link Established.


We changed processors on the TDE.
We changed Switches.
We changed SIP servers.
Firewall configured properly with Sonicwall.


I am not sure what else to check now?

Anmyone else have experience with this issue?

 

[Otoni]

Probable cause:
Data link between the network and IP-GW card failed.

Solution:
Check the connection between the network and IP-GW card.

http://www.wanetelecoms.com

 

[raist3001]

I did that.

We changed the switch, we changed the cables. We implemented some firewall rules. The only thing we did not change is the DSP card on the processor.

 

[obtsystems]

is it happening at a set time.
set the maintenance port in to mirror port and run wire shark on the tde,this should show what is happening