perfSONAR User Q&A and Other Discussion

[Bruce Mah <>]

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ESnet (Energy Sciences Network) announces the availability of iperf
3.6.  This release adds two new options:  --extra-data can be used
to include some user-defined data in the JSON output, and
the --repeating-payload option can be used to specify a pattern of
payload bytes similar to iperf2.  Several minor bugs were also fixed.
More information on this and other changes is available in the
RELEASE_NOTES file in the source distribution.

iperf 3.6 should be fully backward-compatible with prior iperf3
releases, that is, iperf 3.6 clients and servers should interoperate
correctly with all 3.x clients and servers.  Note however that users
running iperf 3.6 with the bwctl utility (perhaps as a part of a
perfSONAR 3.x installation) need to ensure they are using bwctl
version 1.6.3 or newer.

iperf3 is a tool for measuring the maximum TCP, UDP, and SCTP throughput
along a path, allowing for the tuning of various parameters and
reporting measurements such as throughput, jitter, and datagram packet
loss.  It is fully supported on Linux, FreeBSD, and macOS.  It may
run on other platforms as well, although it has not received the same
attention and testing.  Note that iperf3 is not compatible with, and
will not interoperate with, version 2 or earlier of iperf.

The source code for iperf 3.6 is available at:

https://downloads.es.net/pub/iperf/iperf-3.6.tar.gz

SHA256 hash:

de5d51e46dc460cc590fb4d44f95e7cad54b74fea1eba7d6ebd6f8887d75946e  
iperf-3.6.tar.gz

NOTE:  As of 22 June 2018, the download server for iperf3 supports
retrievals via HTTPS.  For backwards compatibility with old URLs (for
example in prior iperf3 release announcements), attempted retrievals
via HTTP will be redirected to use HTTPS.

iperf3 is freely-redistributable under a 3-clause BSD license.  More
information can be found in the LICENSE file inside the source
distribution.

Additional documentation for iperf3 can be found at:

https://software.es.net/iperf

More information about iperf3 (including the issue tracker, source
code repository access, and mailing list) can be found on the iperf3
page on GitHub at:

https://github.com/esnet/iperf

User questions can go to the iperf users list (which is more-or-less
shared between iperf2 and iperf3):



Mailing list information and archives can be found at:

https://lists.sourceforge.net/lists/listinfo/iperf-users

The mailing list for iperf3 development is:



To see the list archives or join the mailing list, visit:

http://groups.google.com/group/iperf-dev

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