A network should have no more than 5 segments, 4 repeaters and 3 mixing
segments between any two DTEs.
A mixing segment is a segment with more than 2 interfaces attached to
it.
A link segment is a coax UTP or fibre segment without DTE modes.
When 5 segments are used the maximum length of a FOIRL (Fibre Optic
Inter-Repeater Link) should be no greater than 500m.
When 4 segments are used then the maximum length of FOIRL may be
increases to 1000m.
These rules are designed to:
minimise reflections
maintain acceptable attenuation
limit round trip times to 575 bit times (i.e. to maintain the required
collision domain)
limit the interframe gap shrinkage (must be less than 49 bits
-----Original Message-----
From: Dewar Charles R [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 26, 2001 10:05 AM
To: NT System Admin Issues
Subject: RE: Network Login
I give. What's the 5,4,3 rule?
-----Original Message-----
From: Neil Harvey [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 26, 2001 10:41 AM
To: NT System Admin Issues
Subject: Re: Network Login
how many devices do you have segmenting your network? Are you breaking
the
5,4,3 rule?
Neil
----- Original Message -----
From: "Tiffany Ernest" <[EMAIL PROTECTED]>
To: "NT System Admin Issues" <[EMAIL PROTECTED]>
Sent: Wednesday, September 26, 2001 4:38 PM
Subject: Re: Network Login
> Can you log on as another regular user on that 95 box (not admin)?
Can
that
> user log on to another 95 machine? Make sure that account isn't
restricted
> to log on anywhere in the user manager/workstation options.
> tiffany
>
> Don Ely wrote:
>
> > The error you're getting doesn't match the problem description. I
would
> > expect an error like "No Domain Server was available. You may not
hae
> > access to certain resources."
> >
> > Have you tried a whole new box or a laptop at that location to
ensure
> > it's not a switch, NIC, or patch cable?
> >
> > D
> >
> > -----Original Message-----
> > From: Jose, Pradeep OLNG-QTE/537 [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, September 26, 2001 7:36 AM
> > To: NT System Admin Issues
> > Subject: RE: Network Login
> >
> > I have tried reinstalling the OS, moved the PC and put up a new one
with
> > a different NIC. The new PC shows the problem also. Nothing works.
> >
> > After putting up with the new NIC and deleting the entry from the
WINS
> > table, the user is able to login but then, after the first login, he
is
> > not able to login anymore.
> >
> > Could it be with the hub or the entry in the WINS???
> >
> > Thanks
> > Pradeep Jose
> >
> > -----Original Message-----
> > From: David James [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, September 26, 2001 6:04 PM
> > To: NT System Admin Issues
> > Subject: RE: Network Login
> >
> > Sounds like the hub, cabling, or NIC.
> > Troubleshoot!
> > Last resort you could hook up a different PC to that spot, see if it
> > happens. Or, you could get a real OS.
> >
> > DJ
> >
> > -----Original Message-----
> > From: Jose, Pradeep OLNG-QTE/537 [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, September 26, 2001 8:37 AM
> > To: NT System Admin Issues
> > Subject: Network Login
> >
> > Hi Guys,
> >
> > Got a small problem.
> >
> > One of the PC running win95 is not able to login to the NT Domain.
When
> > a User tries to login into the domain, he gets the message "You are
not
> > allowed to logon from this workstation". But there's no problem for
> > Domain administrators to logon from this 95box.
> >
> > This PC is connected to a hub which is connected to the switch. If I
> > hook up the PC directly to the switch(Through the patch panel),
Users
> > are able to login.
> >
> > There are no workstation restrictions for the user.
> >
> > Any ideas would be of great help.
> >
> > Thanks in advance
> > Pradeep Jose
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