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Logical Volume Manager Problem »
« Update libcurl from source on CentOS 5.2  
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Sri

@airtelbroadband.in

Network problem

Hi,
I have a hub with about 10 pcs connected to it .It has been working well for the last 10 months and all my PC's are on LINUX platform. Since yesterday i am facing a problem.

After the hub is switched on ,the PCs are staying connected for about 2-3 minutes and then the connectivity is lost , and when i restart the hub the same thing happens(i.e, the PCs stay connected for 2-3 mins and then gets disconnected).

Even I changed the HUB ,the problem is still there. Can any one suggest me a solution for this .
I dont know wether it is the problem of the hub or the OS(LINUX Redhat 5).


ironwalker
World Renowned
Premium,MVM
join:2001-08-31
Keansburg, NJ
clubs:
Yep...use a switch.
Doesnt a hub only allow one pc to connect to net at a time?


iwarford

join:2009-01-11
London, ON
reply to Sri
Connected.... to what? The Internet?

I'm not clear on what's going on. It could be a whole bunch of things. Is the uplink plugged into anything else?

Jaber

join:2007-07-07
Mount Prospect, IL
·Vonage

reply to Sri
Sounds like possibly the HUB.

Have you tried connecting 1 at a time and then work your way up to 10? Sounds like there might be too many collisions on the HUB causing it to crap out.

P.S.

I would also recommend getting a Switch over a Hub, but that's me.


nixen
Rockin' the Boxen
Premium
join:2002-10-04
Alexandria, VA
·Cox HSI
·Speakeasy

reply to ironwalker
said by ironwalker See Profile :

Yep...use a switch.
Doesnt a hub only allow one pc to connect to net at a time?
No: that would kind of defeat the purpose of a hub. What *CAN* happen, however, is that you get uncontrolled collisions/congestion.
--
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt. -- Bertrand Russell


Sir Meowmix III

reply to Sri
Yeah, it's still CSMA/CD


JohnInSJ
Premium
join:2003-09-22
San Jose, CA
·Comcast

reply to Sri
Where did you find a HUB in 2008/9?

Unless you have a switch and you keep saying Hub by mistake, you don't want a hub.

Why it worked for 10 months but is failing now I have no idea. Sounds like whatever the switch/hub is connected to is having the problem, not the switch/hub itself since you already tried swapping it out.

It's not the OS. I'm assuming that's set to DHCP (dynamic IP)

Maybe you mean a router?

We need a lot more info here. Where are you getting IP addresses? What it the connection to the internet? Who knows - could be anything.
--
My place : »www.schettino.us


nwrickert
sand groper
Premium,MVM
join:2004-09-04
Geneva, IL
·AT&T U-Verse
·AT&T Midwest

Unless you have a switch and you keep saying Hub by mistake, you don't want a hub.
That reminds me of the time that I replaced a 100 mb/s switch with a 10 mb/s hub. With the hub, I could put the network adapter of one system into promiscuous mode, and observe the packets that were going to another system.

I did revert back to the switch as soon as I had solved the network problem I was investigating. Hubs do have their uses.
--
AT&T dsl; Westell 327w modem/router; openSuSE 11.0; firefox 3.0.5


deblin
Dark Side of the Moon
Premium,MVM
join:2001-09-01
Middletown, DE

My first couple of semesters at college, the residence hall ethernet connections were on a non-switched network. You could literally run a sniffer and the ENTIRE building's network traffic was visible. So ~200+ POP3 passwords in the clear...scary stuff. In the middle of the 2nd semester, they updated the network to use switches, thankfully.
--
He who is not contented with what he has, would not be contented with what he would like to have. -Socrates


MaxCras

join:2008-09-19
Mount Clemens, MI
My first home network had 2 10mb hubs at it's core.

Good enough for Quake
-
Forums » Tech and Talk » OS and Software » All Things UnixLogical Volume Manager Problem »
« Update libcurl from source on CentOS 5.2  


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