Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: AIX server problem - network connection is unstable !
Operating Systems AIX AIX server problem - network connection is unstable ! Post 303044690 by Neo on Sunday 1st of March 2020 11:07:34 PM
Old 03-02-2020
Quote:
Originally Posted by bobochacha29
On this ethernet segment we have many servers, but only these two servers got error, so I don't think this's the point.
A slight delay in a packet on a busy Ethernet segment is not "an error". That is how Ethernet works.

What you are "showing us' (an occasional 44 ms delay) is typical of all busy Ethernet segments with many devices.

44 ms is 44 one thousandths of a second. 44/1000 seconds.

The way in which you answer my questions shows you do not understand LAN networking and Ethernet (or networking in general).

Delays on an Ethernet segment are not "errors" and nor is it a sign of "instability". This his how the Ethernet (and indeed most networking protocols work) protocols works (queues, delays, priorities).

If you want guaranteed fast delivery between two hosts, you need to move them to their own Ethernet segment with only two devices on that network.

This is the only approach any experienced network engineer would take or advise.

Think about how Ethernet works. Every device wants to talk at the same time on the same wire. They cannot talk at the same time. The more devices, the more this happens. Each device will wait a random number of milliseconds to transmit when the network is busy. This is now LANs work. The more devices, the more a chance of a delay. So..... a 44ms delay (44/1000 of a second) occasionally on a busy LAN segment is normal.

As I mentioned to you, but you do not seem to want to understand, you want guaranteed fast delivery between two hosts on a LAN segment, you need to move them to their own Ethernet segment with only two devices on that physical networking segment.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

FTP connection problem on new server

Solaris Server (V880) version 8 Brand new box just installed O/S, what do I need to do in order to get FTP working. I have updated the /etc/hosts.equiv file Problem - When trying to ftp to the server I get a login incorrect message, this is with the root user. Are there some... (1 Reply)
Discussion started by: miredale
1 Replies

2. UNIX for Dummies Questions & Answers

Network connection problem in unix

I have a network connection problem in unix. I am trying to access to LAN in unix but unfortunately it doesn't work. For example, if I ping from Unix to windows it says 'the network is unreacable'. Also, I can't ping in windows to unix. I would be glad if someone could help me. Thanks. ... (5 Replies)
Discussion started by: fatihshen
5 Replies

3. Cybersecurity

Enable SSH for root over certain network connection of a server...is it possible?

Hi - I have a SUSE Enterprise Linux Server V9 that I have an issue with. Policy says that root connectivity via ssh needs to be disabled. So, to do that, I made the following change in the sshd_config section: # Authentication: #LoginGraceTime 2m #PermitRootLogin yes PermitRootLogin no... (3 Replies)
Discussion started by: cpolikowsky
3 Replies

4. Solaris

Server unexpectedly closed network connection error in passwordless in ssh through

Hi , when i try to passwordless connection login in ssh through putty, i am getting the "Server unexpectedly closed network connection" error.i have already finished the public and private key settings for the particular user. thanks MaroV (1 Reply)
Discussion started by: vr_mari
1 Replies

5. AIX

AIX OS problem? network problem?

Dear ALL. I installed AIX OS on customer sites. but Only one site is too slow when I connected telnet, ftp.. Ping is too fast. but telnet and FTP is not connected.. of course i check the configuration file on aix but it's normal. Do any Idea?? thanks in advance. - Jun - (3 Replies)
Discussion started by: Jeon Jun Seok
3 Replies

6. Solaris

Solaris 10 ftp connection problem (connection refused, connection timed out)

Hi everyone, I am hoping anyone of you could help me in this weird problem we have in 1 of our Solaris 10 servers. Lately, we have been having some ftp problems in this server. Though it can ping any server within the network, it seems that it can only ftp to a select few. For most servers, the... (4 Replies)
Discussion started by: labdakos
4 Replies

7. AIX

Help Me - AIX server connect to a VPN network

Hi, I have a task requested by my boss to create a script to enable a server to connect to a vpn network and then to connect to another server to upload some data... How can I connect to a vpn network from AIX server? via telnet? ssh? I have tried to google but mostly the answers are... (1 Reply)
Discussion started by: mushr00m
1 Replies

8. UNIX for Advanced & Expert Users

fork: Resource temporarily unavailable , server unexpectedly unavailable network connection

Solaris 10 Server refuse to connect :wall: fork: Resource temporarily unavailable , server unexpectedly unavailable network connection , refuse error, disconnect message, fatal error type2, (protocol error type2) Issue has been resolved after taken few steps :b: First of all need to check... (1 Reply)
Discussion started by: taherahmed
1 Replies

9. Ubuntu

ssh connection unstable on remote server

Hi I hope someone can spot what is wrong with this ssh connection as it has me baffled. I am trying to set up a remote ssh connection (passwordless) to a remote 'server', (Ubuntu laptop at home). I have tried these steps with rsa and dsa key types, (currently dsa) - 1) ssh-keygen... (4 Replies)
Discussion started by: steadyonabix
4 Replies

10. AIX

FTP connection refused from text editor while accessing AIX server .

HI , I'm facing the FTP connection refused from text editor while accessing AIX server .It showing the messege "can't create ftp connection connectin refused".Though it is accessible from putty . i'm using aix version 6 . Can any one let me know the seetings needs to be made so that i... (2 Replies)
Discussion started by: rmkganesh
2 Replies

LEARN ABOUT CENTOS

ifenslave

IFENSLAVE(8)						    BSD System Manager's Manual 					      IFENSLAVE(8)

NAME

     ifenslave -- Attach and detach slave network devices to a bonding device.

SYNOPSIS

     ifenslave [-acdfhuvV] [--all-interfaces] [--change-active] [--detach] [--force] [--help] [--usage] [--verbose] [--version] master slave ...

DESCRIPTION

     ifenslave is a tool to attach and detach slave network devices to a bonding device.  A bonding device will act like a normal Ethernet network
     device to the kernel, but will send out the packets via the slave devices using a simple round-robin scheduler.  This allows for simple load-
     balancing, identical to "channel bonding" or "trunking" techniques used in switches.

     The kernel must have support for bonding devices for ifenslave to be useful.

OPTIONS

     -a, --all-interfaces
	     Show information about all interfaces.

     -c, --change-active
	     Change active slave.

     -d, --detach
	     Removes slave interfaces from the bonding device.

     -f, --force
	     Force actions to be taken if one of the specified interfaces appears not to belong to an Ethernet device.

     -h, --help
	     Display a help message and exit.

     -u, --usage
	     Show usage information and exit.

     -v, --verbose
	     Print warning and debug messages.

     -V, --version
	     Show version information and exit.
     If not options are given, the default action will be to enslave interfaces.

EXAMPLE

     The following example shows how to setup a bonding device and enslave two real Ethernet devices to it:

     # modprobe bonding
     # ifconfig bond0 192.168.0.1 netmask 255.255.0.0
     # ifenslave bond0 eth0 eth1

AUTHOR

     ifenslave was originally written by Donald Becker <becker@cesdis.gsfc.nasa.gov>, and has since been updated by various kernel developers.

     This manual page was written by Guus Sliepen <guus@debian.org> for the Debian GNU/Linux system.

								   May 31, 2019
All times are GMT -4. The time now is 07:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy