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Operating Systems Linux Red Hat Extremely low throughput between AIX 7.2 and RHEL Maipo Post 303044543 by ubu389 on Wednesday 26th of February 2020 04:48:11 AM
Old 02-26-2020
Hi all,
when I copy from AIX to Linux in my local LAN I get an acceptable throughput (around 400 Mbit/s).
Same thing from AIX to AIX.

I think that my problem from LAN to Cloud might be related to some misconfiguration on the network, probably in some switch or router, but how could you explain the fact that if I transfer from a Linux in the same LAN I don't get any issue while transfering?

I analyzed some tcpdump (AIX-Cloud communication) with Wireshark and I found a lot of "Duplicate Ack", "ACKed segment that wasn't captured (common at capture start)" and "Previous segment(s) not captured (common at capture start)".

Any idea or thought would be useful for me,
Thank you again Smilie
 

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WIRELESS(7)						     Linux Programmer's Manual						       WIRELESS(7)

NAME
wireless - Wireless Tools and Wireless Extensions SYNOPSIS
iwconfig iwpriv -a DESCRIPTION
The Wireless Extensions is an API allowing you manipulate Wireless LAN networking interfaces. It is composed of a variety of tools and configuration files. It is documented in more detail in the Linux Wireless LAN Howto. The Wireless Tools are used to change the configuration of wireless LAN networking interfaces on the fly, to get their current configura- tion, to get statistics and diagnose them. They are described in their own man page, see below for references. Wireless configuration is specific to each Linux distribution. This man page will contain in the future the configuration procedure for a few common distributions. For the time being, check the file DISTRIBUTIONS.txt included with the Wireless Tools package. DEBIAN 3.0 In Debian 3.0 (and later) you can configure wireless LAN networking devices using the network configuration tool ifupdown(8). File : /etc/network/interfaces Form : wireless-<function> <value> wireless-essid Home wireless-mode Ad-Hoc See also : /etc/network/if-pre-up.d/wireless-tools /usr/share/doc/wireless-tools/README.Debian SuSE 8.0 SuSE 8.0 (and later) has integrated wireless configuration in their network scripts. Tool : Yast2 File : /etc/sysconfig/network/wireless /etc/sysconfig/network/ifcfg-* Form : WIRELESS_<function>=<value> WIRELESS_ESSID="Home" WIRELESS_MODE=Ad-Hoc See also : man ifup info scpm ORIGINAL PCMCIA SCRIPTS
If you are using the original configuration scripts from the Pcmcia package, you can use this method. File : /etc/pcmcia/wireless.opts Form : *,*,*,*) ESSID="Home" MODE="Ad-Hoc" ;; See also : /etc/pcmcia/wireless File PCMCIA.txt part of Wireless Tools package AUTHOR
Jean Tourrilhes - jt@hpl.hp.com http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/ SEE ALSO
iwconfig(8), iwlist(8), iwspy(8), iwpriv(8), iwevent(8). wireless-tools 4 March 2004 WIRELESS(7)
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