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[LDM #BQD-554715]: ldm restart



Carol,

> I was told by TC that the servers are NOT behind a NAT device, but there
> is a firewall.

A downstream LDM will attempt to connect to its upstream LDM server if it
doesn't receive anything (including the LDM heartbeat) in 60 seconds. If it 
can't connect, then it will close the data connection and attempt to 
re-subscribe. If it does connect, then it will close the data connection and 
attempt to re-subscribe only if it receives a negative reply to its IS_ALIVE 
inquiry from the upstream LDM server.

It appears, therefore, that your downstream LDM connects to the upstream LDM 
server but either never receives a reply (possible) or the reply is always 
positive (not likely).

I wonder if your firewall is throwing away the reply.

If you log at the verbose (i.e., INFO) level) then your downstream LDM will 
tell you what happens when it sends the IS_ALIVE inquiry to the upstream LDM 
server.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: BQD-554715
Department: Support LDM
Priority: Normal
Status: Closed
===================
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NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.