To answer your questios:
1. network is Intranet not internet.
2. servers CPU and I/O are very light. We did use "sar -u" and sar -b to check.
3. is NOT only one server has this network slow problem. at least 4 to 5 servers on that rack all report slow. it is NOT possible all servers on that rack are all heavy load.
--- 11/3/28 (ä)ïEmmanuel Noobadmin <centos.admin@xxxxxxxxx> åéï
> åäè: Emmanuel Noobadmin <centos.admin@xxxxxxxxx>
> äæ: Re: centos server network speed check???
> æäè: "CentOS mailing list" <centos@xxxxxxxxxx>
> ææ: 2011å3æ28æ,ä,äå5:45
> On 3/29/11, mcclnx mcc <mcclnx@xxxxxxxxxxxx>
> wrote:
> > we have several servers on same rack and servers are
> all inside firewall.
> > Centos version from 4.X to 5.X. sometime the
> connection are very slow
> > (compare to servers on other racks also inside
> firewall).
> >
> > we discuss with network engineer he ask us use "ping"
> and traceroute" to
> > check. Both tools response time are good but if
> we connect through
> > application like Web browser, database, or DELL OPMN
> tool. The response
> > time is very very slow.
>
> Are you connecting to the servers from within the same
> network/building or via Internet?
>
> If the ping times are good, it could be the servers are too
> heavily
> loaded, whether due to too many users or inefficient
> applications. So
> they would respond very slowly to requests although there
> is no
> network problem.
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