On Tue, 2008-08-26 at 11:20 +0530, Gopinath Achari wrote: > hi > > > how to check the data rate on the nic card in centos > i.e, at what speed the data is transmitted and received on > ethernet interface in terms of kbps or bps > any command is available in centos 5.1 You can use ethtool to check for negotiated networkspeeds. If you want to check for current speeds of network connections, I usually use iptraf. Regards, Michel