03-09-2020
Quote:
Yes, I understand.
When on a LAN segment you should also realize that every hardware interface to the LAN can have a different characteristic.
Some ethernet cards are more "chatty" and some are less "chatty" and some are "old" and others are "new" and some have drivers / firmware written by "A" and others have drivers / firmware written by "B".
You say "you don't have a lot of knowledge"... that's normal.
So, I am telling you what an experienced network engineer with a lot of knowledge would so.
If I had a busy LAN segment with a lot of devices on the same segment (subnet), as you have indicated, and I had two devices which I wanted to have the best communication speed between them, I would put them on their own LAN segment (subnet) and "be done with it" and maybe "retest" when the two devices are the only two devices (or three if you have a different gateway device) on that segment.
Quote:
Originally Posted by
RecoveryOne
This is a pretty large box, a E870 as a matter of fact. Is the network coming from a VIO? If so: Is the VIO network setup correctly? Does the VIO have the correct resource assignments to provide services to however many lpars you have running?
I ask the above because I encountered an issue where the VIO was set up by an MSP and what was happening is every so often the active network path would switch from say c1-p1-t1 to c10-p1-t1. That would cause a momentary ping delay. Much like what you are seeing. My network team was the first to report it to me, as they would see the MAC for the etherchannel device change which port it was reporting on the switch. The item they sent me was %SW_MATM-4-MACFLAP_NOTIF. It was caused by the etherchannel on the VIO having two primary adapters and no backup adapter. Taking one of the primary adapters and moving it to the backup adapter fixed the issue. Your results may vary.
If they are dedicated adapters and not coming from the VIO, again check your AIX configuration. Something to note, your tcp_recvspace and rfc1323 are not consistent with your adapters. That might be by design, but gives me pause that network wasn't set up correctly.
Now, everything else that everyone has posted here comes into play as well, and I'm not a network admin so I cannot weigh in on the other topics presented here.
Push comes to shove, start a ticket with the IBM AIX team.
We're running with full resources, no VIO.
We've asked network team to recheck the network. We are also planning to upgrade OS to 7.1 to get help from IBM.
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LEARN ABOUT DEBIAN
bt-adapter
bt-adapter(1) bluez-tools bt-adapter(1)
NAME
bt-adapter - a bluetooth adapter manager
SYNOPSIS
bt-adapter [OPTION...]
Help Options:
-h, --help
Application Options:
-l, --list
-a, --adapter=<name|mac>
-i, --info
-d, --discover
--set <property> <value>
DESCRIPTION
This utility is used to manage Bluetooth adapters. You can list all available adapters, show information about adapter, change adapter
properties or discover remote devices.
OPTIONS
-h, --help
Show help
-l, --list
List all available adapters
-a, --adapter <name|mac>
Specify adapter to use by his Name or MAC address
(if this option does not defined - default adapter used)
-i, --info
Show information about adapter (returns all properties)
-d, --discover
Discover remote devices (with remote device name resolving)
--set <property> <value>
Change adapter properties (see ADAPTER PROPERTIES section for list
of available properties)
ADAPTER PROPERTIES
string Address [ro]
The Bluetooth adapter address (MAC).
string Name [rw]
The Bluetooth adapter friendly name.
uint32 Class [ro]
The Bluetooth class of device.
boolean Powered [rw]
Switch an adapter on or off. This will also set the
appropiate connectable state.
boolean Discoverable [rw]
Switch an adapter to discoverable or non-discoverable
to either make it visible or hide it.
If the DiscoverableTimeout is set to a non-zero
value then the system will set this value back to
false after the timer expired.
In case the adapter is switched off, setting this
value will fail.
boolean Pairable [rw]
Switch an adapter to pairable or non-pairable.
Note that this property only affects incoming pairing
requests.
uint32 PaireableTimeout [rw]
The pairable timeout in seconds. A value of zero
means that the timeout is disabled and it will stay in
pareable mode forever.
uint32 DiscoverableTimeout [rw]
The discoverable timeout in seconds. A value of zero
means that the timeout is disabled and it will stay in
discoverable/limited mode forever.
The default value for the discoverable timeout should
be 180 seconds (3 minutes).
boolean Discovering [ro]
Indicates that a device discovery procedure is active.
list UUIDs [ro]
List of 128-bit UUIDs that represents the available local
services.
AUTHOR
Alexander Orlenko <zxteam@gmail.com>.
SEE ALSO
bt-agent(1) bt-audio(1) bt-device(1) bt-input(1) bt-monitor(1) bt-network(1) bt-serial(1)
2010-08-16 bt-adapter(1)