alt.certification.a-plus - Maybe Dumb Questions

Author

Maybe Dumb Questions

yeabeer

2005-04-06, 1:56 pm

I am a teacher at a private school that also supports our computer
network, and we just dumped DSL for a full T1. SBC installed a Cisco
1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
4-port switch module installed. It is configured with 5 static IP's.
SBC doesn't support DHCP on its leased equip.

I have it connected (temp) to a netgear DSL router/4-port switch which
is connected to a unmanaged 24-port switch which cascades to other
24-port switches (we have over 60 PC's in two buildings connected via
fiber) so I can have DHCP for all of the PC's. Everything is working
fine like this, but I have questions, SBC is no help.

1) If the LAN port on the Cisco is only 10/100, what's the point of
having a T1? Why doesn't it have a gigabit port? Am I missing a piece
of hardware?

2) I wan't to have a 24-port gigabit network for the computer lab and
our (2) servers. If I have to plug into the netgear DSL router just to
get DHCP at 10/100, how do I get gigabit speeds even with a 24-port
gigabit switch?

3) How do I use the other (4) IP addresses?

See, these may be dumb questions.

Thanks for your help.

Ray Kinsala

Also posted at alt.certification.network

ImhoTech

2005-04-06, 1:56 pm

"yeabeer" < dn5150nospamola@nospamsbcgloba
l.net> wrote in message
news:m6tvf0h8aa4p8etli0mckk5u2
tqtdu3f6a@4ax.com...
> I am a teacher at a private school that also supports our computer
> network, and we just dumped DSL for a full T1. SBC installed a Cisco
> 1721 Router, that has (1) T1 port, (1) 10/100 LAN port. There is no
> 4-port switch module installed. It is configured with 5 static IP's.
> SBC doesn't support DHCP on its leased equip.
>
> I have it connected (temp) to a netgear DSL router/4-port switch which
> is connected to a unmanaged 24-port switch which cascades to other
> 24-port switches (we have over 60 PC's in two buildings connected via
> fiber) so I can have DHCP for all of the PC's. Everything is working
> fine like this, but I have questions, SBC is no help.
>
> 1) If the LAN port on the Cisco is only 10/100, what's the point of
> having a T1? Why doesn't it have a gigabit port? Am I missing a piece
> of hardware?

You're not missing hardware, you're not understanding what a T1 is. That
10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.
>
> 2) I wan't to have a 24-port gigabit network for the computer lab and
> our (2) servers. If I have to plug into the netgear DSL router just to
> get DHCP at 10/100, how do I get gigabit speeds even with a 24-port
> gigabit switch?

If everything else is gigabit and you use switches you'll get gigabit
betweent comps and servers. You don't have gigabit WAN.

>
> 3) How do I use the other (4) IP addresses?

If they have five ip addresses coded to the Cisco, but no hub installed,
then you'll need at least a switch as the next in the device chain. On this
switch could be anyt device that could be configured to use an ip address,
pc router etc. Any device here is directly exposed to the external Internet,
really no purpose in using all the IP addresses unless you ne Internet
Accesible servers. Safer to use a router with one ip address, then NAT
everything through.

Are you being given a T1? doesn't reallt make a lot of sense to switch from
DSL to T1 from a financial standpoint.

>
> See, these may be dumb questions.
>
> Thanks for your help.
>
> Ray Kinsala
>
> Also posted at alt.certification.network
>

yeabeer

2005-04-06, 1:56 pm

Thanks for your answer, I get it now. Yes, we got a donation to
upgrade our technology. The catch was that we had to get a T1. With
e-rate, we are only paying $300 per month for the T1. Before we were
paying $260 per month for SDSL with 5 static IP's. Well worth it IMOP.

Do you recommend any brand names for gigabit equip.?

On Thu, 22 Jul 2004 13:37:55 -0400, "ImhoTech" <bobo@yoodelers.net>
wrote:

>
>"yeabeer" < dn5150nospamola@nospamsbcgloba
l.net> wrote in message
> news:m6tvf0h8aa4p8etli0mckk5u2
tqtdu3f6a@4ax.com...
>
>You're not missing hardware, you're not understanding what a T1 is. That
>10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.
>
>If everything else is gigabit and you use switches you'll get gigabit
>betweent comps and servers. You don't have gigabit WAN.
>
>
>If they have five ip addresses coded to the Cisco, but no hub installed,
>then you'll need at least a switch as the next in the device chain. On this
>switch could be anyt device that could be configured to use an ip address,
>pc router etc. Any device here is directly exposed to the external Internet,
>really no purpose in using all the IP addresses unless you ne Internet
>Accesible servers. Safer to use a router with one ip address, then NAT
>everything through.
>
>
>Are you being given a T1? doesn't reallt make a lot of sense to switch from
>DSL to T1 from a financial standpoint.
>
>

ImhoTech

2005-04-06, 1:56 pm

"yeabeer" < dn5150nospamola@nospamsbcgloba
l.net> wrote in message
news:9160g09grcv0etihaovmtejp0
o0vpkeeq0@4ax.com...
> Thanks for your answer, I get it now. Yes, we got a donation to
> upgrade our technology. The catch was that we had to get a T1. With
> e-rate, we are only paying $300 per month for the T1. Before we were
> paying $260 per month for SDSL with 5 static IP's. Well worth it IMOP.
>
> Do you recommend any brand names for gigabit equip.?
>
>
>
>
>
>

The only thing I have used at all is a couple cards in cisco routers used
using gigabit as a backbone. Do you really need gigabit? What creates the
need for the gigabit spec?

Michael

2005-04-06, 1:56 pm

ImhoTech wrote:

> "yeabeer" < dn5150nospamola@nospamsbcgloba
l.net> wrote in message
> news:m6tvf0h8aa4p8etli0mckk5u2
tqtdu3f6a@4ax.com...
>
>
>
> You're not missing hardware, you're not understanding what a T1 is. That
> 10/100 is 10 megabytes, a T1 is abt 1.5 megabytes.

10 megabit / 100 megabit and ~ 1.5 megabit.

michael

yeabeer

2005-04-06, 1:56 pm

I want gigabit for future-proofing the lab, and also we have a
department of labor job training contract which calls for online
learning using streaming video and flash/shockwave software. With 24
lab pc's all being used at once, the DSL couldn't cut it. Also, the
school's principal wants to use the Cat6 and gigabit lab as a selling
point to get more students and a basis for increasing the tuition.

On Thu, 22 Jul 2004 21:34:30 GMT, Michael <none@none.com> wrote:

>ImhoTech wrote:
>
>
>10 megabit / 100 megabit and ~ 1.5 megabit.
>
>michael

Solomon Kozanski

2005-04-06, 1:57 pm

all i can say is it's a good thing you're working for a private school. the
expense involved in this operation will actually be utilized to LEARN
something, unlike in pubic schools
--
Brought to you courtesy of Kozanski's Morgue & Grill

"yeabeer" < dn5150nospamola@nospamsbcgloba
l.net> wrote in message
news:0uf0g0d0nqbct0qlmtf82lkh4
j186he1cc@4ax.com...
> I want gigabit for future-proofing the lab, and also we have a
> department of labor job training contract which calls for online
> learning using streaming video and flash/shockwave software. With 24
> lab pc's all being used at once, the DSL couldn't cut it. Also, the
> school's principal wants to use the Cat6 and gigabit lab as a selling
> point to get more students and a basis for increasing the tuition.

>
>
>
> On Thu, 22 Jul 2004 21:34:30 GMT, Michael <none@none.com> wrote:
>
That[color=blue]
>

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