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

[IDD #RKL-664278]: Latency/Bandwidth issues from idd.unidata ?

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDD #RKL-664278]: Latency/Bandwidth issues from idd.unidata ?
  • Date: Tue, 08 Mar 2022 13:27:29 -0700
Hi Daryl and Pete,

> Pete, do you have `enable-anti-DOS` enabled for your LDMs?

The anti-DOS feature controls the behavior of an *upstream* LDM. When it's 
enabled in the registry, an upstream LDM will disconnect a previously-existing 
request for the same data from the same downstream site if such a connection 
exists. This can cause problems for multiple downstream LDMs that are behind a 
NAT device making identical requests to an upstream site because the connection 
attempts will appears to be from the same downstream site.

This doesn't appear to be your situation.

The anti-DOS feature is enabled by default.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: RKL-664278
Department: Support IDD
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.