Warm wishes for the new year 2003, thanks for the reply, i found that there are collission when i use a hub in between, How do i make sure that both the ethernet cards are running in half or full duplex mode, how do i check if weathere an ethernet is in half or full duplex mode Thanks in advance Vishal Gandhi ----- Original Message ----- From: "ulrich schwarz" <ulrich.schwarz@rz.uni-ulm.de> To: "Vishal Gandhi Kommineni" <vishal@southernonline.net> Cc: "LARTC" <lartc@mailman.ds9a.nl> Sent: Thursday, January 02, 2003 2:34 PM Subject: Re: [LARTC] speed problem > Vishal Gandhi Kommineni wrote: > > Hi all, > > I have a pecular problem > > > > i have a setup of 3 linux boxes and a windows pc > > > > boxes A, B, C and a pc are connected in the follwoing sequence > > > > > > A (eth0)< ----> (eth0) B (eth1)< -----> (eth0) C (eth1) <------> PC > > > > > > 1) using ftp I am able to transfer data from B to A both ways, the > > speeds are around 1.2e > > 2) I am also able to transfer similarly to and fro from B to PC via box C > > > > but > > > > 3) when i am trying to ftp data from A to PC via B and C to and fro the > > data transfer speed has drastically come down, > > Please note that in both B and C ipforward is enabled. > > > > Kindly help > > > > Thanks in advance, > > > > Vishal Gandhi > > > hi vishal, > > the first thing i'd like to check is if the ethernet cards are running > in full- or half-duplex mode. AFAIK running one card in half-duplex mode > and the other trying to force full-duplex mode can lead to lots of > collisions, so this could be a reason for slow speed. > > you could use a hub or switch instead of the crossover cable and watch > the collision LED (if there is any *g*). > > greetings, > > ulric > > -- > ulrich schwarz, computing center, university of ulm, germany > > > _______________________________________________ > LARTC mailing list / LARTC@mailman.ds9a.nl > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ >
