[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[LDM #GUQ-669331]: Both Radar and Satellite feeds stopped downloading abruptly

John,

> We are still seeing mostly the satellite images fall behind. Today the radar 
> images continued to stay up to date.  If it's our firewall throttling, which 
> our security folks claim they don't have implemented,

I wish I had a nickle for every time I've heard that. :-)

It could be a department firewall, a school firewall, or a campus firewall. Is 
there another LDM on your campus that doesn't have this problem? That might 
help indicate where the bottleneck is.

> why would only one of the products fall behind and not both; especially given 
> that both products come from the same IP?

Packet shaping (i.e., throttling) deals with thresholds and sometimes the 
SATELLITE feed has almost three times the volume of the NEXRAD3 feed.

> Thanks for working through all this with us,

No worries.

Ask your security/network administrators to explain the difference in your 
latency plots for NIMAGE and NEXRAD3. The TCP endpoints are identical, the 
exact same software is used, yet one gets through while the other doesn't.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: GUQ-669331
Department: Support LDM
Priority: Normal
Status: Closed
===================
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.