[AccessD] OT: Wireless network (sort of)

Erwin Craps Erwin.Craps at ithelps.be
Sun Nov 2 02:36:16 CST 2003


The weakest link in a network will decide the bandwith.

If you only have one server all trafic goes to and comes from one link.
If that link is the same speed as the clients link a switch is of no
use. You gonna have a bottleneck.

Again, switch are very good but you must have a different server speed
link OR multiple servers. By that your bandwith gets divided over
multiple or higer speed links.

Switches are useles (for reaons of speed) in a single server and only 1
speed link.

It's a basic rule of a switch!!!

Erwin


-----Oorspronkelijk bericht-----
Van: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] Namens Frank Tanner III
Verzonden: zaterdag 1 november 2003 16:23
Aan: Access Developers discussion and problem solving
Onderwerp: RE: [AccessD] OT: Wireless network (sort of)


Switches will ALWAYS improve your speed over hubs.
Period.

Hubs SHARE the same bandwidth on all ports.  Switches
allocate the max bandwidth per port.

You are incorrect.

--- Erwin Craps <Erwin.Craps at ithelps.be> wrote:
> But switches have no sense in a 1 server environment
> because all of the
> trafic goes and comes from one point.
> Unless your clients are 100Mb and the uplink to the
> server is 1Gb.
> 
> People often believe switches will improve their
> network speed, but that
> is not always the case.
> But indeed the prices of the switches have dropped
> that you buy a switch
> at the price of a good hub these days.
> 
> Erwin
> 
> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com] On
> Behalf Of Rocky Smolin
> - Beach Access Software
> Sent: Saturday, November 01, 2003 1:55 AM
> To: Access Developers discussion and problem solving
> Subject: Re: [AccessD] OT: Wireless network (sort
> of)
> 
> 
> Got it. I think.  Switch can route packet based on
> IP address but can't
> generate an IP address.  Yes?
> 
> Rocky
> 
> 
> Rocky
> 
> ----- Original Message -----
> From: "Frank Tanner III" <pctech at mybellybutton.com>
> To: "Access Developers discussion and problem
> solving"
> <accessd at databaseadvisors.com>
> Sent: Friday, October 31, 2003 10:29 AM
> Subject: Re: [AccessD] OT: Wireless network (sort
> of)
> 
> 
> > It is sort of half-way, but not really.
> >
> > Switches are a "generation" better.  Hubs and
> > switches, on their most basic level perform the
> same function.  They
> > distribute network traffic.  But HOW they
> distribute that traffic is
> > fundimentally different.
> >
> > Unless they're one of the newer layer 3 or layer 4 switches, they 
> > cannot perform routing functions.
> They
> > just hand packets off from point A to point B.
> Think
> > of them as sort of a postman.  They have an
> address
> > for each device on the network and they hand off
> each
> > piece of mail to the appropriate address.  A hub,
> > using this sama analagy would deliver the same
> piece
> > of mail to every house and the one that it
> belonged to
> > would be the one that actually reads it.
> >
> > --- Rocky Smolin - Beach Access Software <bchacc at san.rr.com> wrote:
> > > "but it's as close as I could think of without
> > > getting too technical."
> > >
> > > Thank you.  Much appreciated.  So a switch is
> like
> > > halfway between a hub and
> > > a router?
> > >
> > > Rocky
> > >
> > > ----- Original Message -----
> > > From: "Frank Tanner III"
> <pctech at mybellybutton.com>
> > > To: "Access Developers discussion and problem
> > > solving"
> > > <accessd at databaseadvisors.com>
> > > Sent: Friday, October 31, 2003 7:36 AM
> > > Subject: Re: [AccessD] OT: Wireless network
> (sort
> > > of)
> > >
> > >
> > > > A router and a switch are fundimentall
> different
> > > > things.
> > > >
> > > > A router does just that.  It routes network
> > > traffic.
> > > >
> > > > A switch plays "traffic cop" for a network.
> > > >
> > > > Newer switches, especially the layer 3 and
> layer 4
> > > > ones can perform both functions.This isn't an
> > > exact
> > > > definition, but it's as close as I could think
> of
> > > > without getting too technical.
> > > >
> > > > --- Rocky Smolin - Beach Access Software
> <bchacc at san.rr.com>
> > > > wrote:
> > > > > Is there a difference between a switch and a
> > > router?
> > > > >
> > > > > Rocky
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Frank Tanner III"
> > > <pctech at mybellybutton.com>
> > > > > To: "Access Developers discussion and
> problem
> > > > > solving"
> > > > > <accessd at databaseadvisors.com>
> > > > > Sent: Friday, October 31, 2003 6:54 AM
> > > > > Subject: RE: [AccessD] OT: Wireless network
> > > (sort
> > > > > of)
> > > > >
> > > > >
> > > > > > I recommend "hardwiring" the IP address of
> any
> > > > > device
> > > > > > or server connected to your LAN that's not
> a workstation and
> > > > > > is virtually always on.
> > > > > >
> > > > > > For the price, I would also highly
> recommend
> > > > > removing
> > > > > > all hubs from your network and using them
> as doorstops.
> > > > > > Switches have come way down in
> > > price
> > > > > and
> > > > > > have many benifits over hubs.
> > > > > >
> > > > > > Hubs divide the bandwidth across all
> ports.
> > > Thus
> > > > > if
> > > > > > you have an 8-port 10-BaseT hub, all ports
> > > that
> > > > > are
> > > > > > processing data split that 10Mbit.  A
> switch,
> > > each
> > > > > > port gets the fill bandwidth.
> > > > > >
> > > > > > That's not including the security issues
> > > inherent
> > > > > with
> > > > > > hubs as they broadcast all available data
> to
> > > all
> > > > > > available ports rather than to the proper
> > > > > destination
> > > > > > port.
> > > > > >
> > > > > > --- John Colby
> <jcolby at colbyconsulting.com>
> > > wrote:
> > > > > > > Yes, you can indeed daisy chain routers
> and SUPPOSEDLY hubs,
> 
> > > > > > > though I had no joy doing that with my
> old hub.  I am
> > > however
> > > > > daisy
> > > > > > > chaining my old 4 port
> > > > > > > router off of my new 4 port wireless
> router.
> > > > > The
> > > > > > > newer models even figure
> > > > > > > out what kind of cable you are using,
> > > crossover
> > > > > or
> > > > > > > regular.  The biggest
> > > > > > > issue there was that the router was the
> dhcp
> > > > > server
> > > > > > > so I had to turn off the
> > > > > > > old as a dhcp server and turn on the
> new.  I
> > > > > also
> > > > > > > hardwired the address of
> > > > > > > the old router to 192.168.1.2.  Daisy
> > > Chaining
> > > > > two 4
> 
=== message truncated ===

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