""Larry Letterman"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Chuck,
>
> Originally I got the oversubscribe numbers from extreme a few years ago...
> Now days, with fast switches, it makes no real diference...
CL: numbers are always interesting. especially when compared to
Chuck,
Originally I got the oversubscribe numbers from extreme a few years ago...
Now days, with fast switches, it makes no real diference...
the rationale is that all ports wont be active at the same timeso
you can
oversubscribe the access switches by 3 or 4 to 1
Chuck's Long Road wro
From: "Tom Lisa"
To:
Sent: Thursday, September 26, 2002 1:45 AM
Subject: Re: LAN Design [7:54023]
> Yes, Sem1 does concentrate on Layer 1. We teach the concepts from the
> bottom up. But, as we all know, Top Down Network Design is best. Didn't
> someone write a book on
Yes, Sem1 does concentrate on Layer 1. We teach the concepts from the
bottom up. But, as we all know, Top Down Network Design is best. Didn't
someone write a book on it? All good design starts by getting Layer 8
issues resolved first.
Prof. Tom Lisa, CCAI
Community College of Southern Nevada
Chuck,
Are you in the US? It mus be deep into the night, though I do not know the
time zones there very well (2.15 pm in Japan.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=54183&t=54023
--
FAQ, list archives, and subscriptio
""Larry Letterman"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Jimmy,
>
> The access switch(users) should not be oversubscribed by more than 3 to
> 1in my opinion..
> the total user bandwidth if you have a 12 port switch at 100 mb per port
> is 1.2 gb...the switch needs t
Jimmy,
The access switch(users) should not be oversubscribed by more than 3 to
1in my opinion..
the total user bandwidth if you have a 12 port switch at 100 mb per port
is 1.2 gb...the switch needs to be able to
handle at least 400 mb of thruput
also the core switches should be faster
""Priscilla Oppenheimer"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Jimmy wrote:
snip for breveity
> 300 users on each floor? OK, so you do need some routers or routing
switches
> in there. Or at least some VLANs to contain the spread of broadcasts.
>
> > The
> > backbone s
No maybe your not, but when we in the real world build networks, cost,
politics and budgets
come into play as much if not more than the network itself...
Larry Letterman
Cisco Systems
It-Lan Team
Tom Lisa wrote:
>I'm hurt to say the least. I touch on all of those, albeit briefly. After
>all,
Jimmy wrote:
>
> First of all, thank for the wonderful response.
>
> So from what you all have said. If the user is for normal
> purpose like
> running some application on servers and access the Internet.
> Will a 100Mbps
> be sufficient for 300 users.
We don't have enough info about the appli
Tom Lisa wrote:
>
> I'm hurt to say the least. I touch on all of those, albeit
> briefly. After all, I'm not
> teaching CCDA/DP courses.
>
> Prof. Tom Lisa, CCAI
> Community College of Southern Nevada
> Cisco ATC/Regional Networking Academy
I'm sure experienced, knowledgable professors such a
]
Subject: Re: LAN Design [7:54023]
First of all, thank for the wonderful response.
So from what you all have said. If the user is for normal purpose like
running some application on servers and access the Internet. Will a 100Mbps
be sufficient for 300 users. As for the users, they will be splitted
First of all, thank for the wonderful response.
So from what you all have said. If the user is for normal purpose like
running some application on servers and access the Internet. Will a 100Mbps
be sufficient for 300 users. As for the users, they will be splitted into
several group of around 15-2
ent: Wednesday, September 25, 2002 3:07 PM
> To: [EMAIL PROTECTED]
> Subject: Re: LAN Design [7:54023]
>
>
> Thank-you very much for the recommendations for Top-Down Network Design. I
> probably don't express my gratitude often enough to the many people who
> bought the b
]
Subject: Re: LAN Design [7:54023]
Thank-you very much for the recommendations for Top-Down Network Design. I
probably don't express my gratitude often enough to the many people who
bought the book.
I suspect that we may be helping a Cisco Networking Academy student with
homework. ;-) This sounds
LOL
Tim Medley, CCNP+Voice, CCDP, CWNA
Sr. Network Architect
VoIP Group
iReadyWorld
-Original Message-
From: Larry Letterman [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 25, 2002 12:48 PM
To: [EMAIL PROTECTED]
Subject: Re: LAN Design [7:54023]
Chuck's Long Road
I'm hurt to say the least. I touch on all of those, albeit briefly. After
all, I'm not
teaching CCDA/DP courses.
Prof. Tom Lisa, CCAI
Community College of Southern Nevada
Cisco ATC/Regional Networking Academy
Priscilla Oppenheimer wrote:
> Thank-you very much for the recommendations for Top-D
Thank-you very much for the recommendations for Top-Down Network Design. I
probably don't express my gratitude often enough to the many people who
bought the book.
I suspect that we may be helping a Cisco Networking Academy student with
homework. ;-) This sounds a lot like the exercises they do.
Chuck's Long Road wrote:
>CL:my employer has lots of idle sales engineers who would just love to talk
>to you, not to mention sell you something :->
>
So does Mine :)
:Larry Letterman
Cisco...
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=54080&t=54023
""Tim Medley"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> If you are serious about designing this netwoek and designing ir correctly
> for scalability and functionality, pick up a good network design book.
>
> My reccomendation is Top Down Network Design, by Priscilla Openhei
""Jimmy"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> hmm...Let don't talk about product. Just for a general view. Will a normal
> 100Mbps switch able to support 300 user? Is it realistic in real life
> application?
CL: good idea. so let's start with the fundamentals as I und
The product makes a big difference. Are you planning to have one switch
with 300 ports or 30 switches with 12 ports? Are you planning to use
VLANs? If so will there be more than 64?
The traffic pattern makes a huge difference as does the network design.
If you're using 30 switches daisy-chaine
Always allow room for growth, I would implement Core gigabit switch that
interefaces with at least 3 other switches.
Cheers,
Joe
""Jimmy"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> If i have to design network for 3 storey on a building. There are around
> 200-300 worksta
different approach.
Juan Blanco
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Garrett Allen
Sent: Wednesday, September 25, 2002 6:39 AM
To: [EMAIL PROTECTED]
Subject: Re: LAN Design [7:54023]
as a rule of thumb 10mbps ethernet to the user end station is
e.
thanks.
- Original Message -
From: "Jimmy"
To:
Sent: Wednesday, September 25, 2002 5:17 AM
Subject: Re: LAN Design [7:54023]
> hmm...Let don't talk about product. Just for a general view. Will a normal
> 100Mbps switch able to support 300 user? Is it realistic in real
: LAN Design [7:54023]
hmm...Let don't talk about product. Just for a general view. Will a
normal 100Mbps switch able to support 300 user? Is it realistic in real
life application?
""Larry Letterman"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
hmm...Let don't talk about product. Just for a general view. Will a normal
100Mbps switch able to support 300 user? Is it realistic in real life
application?
""Larry Letterman"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> which platform are you going to use for 300 users...
>
which platform are you going to use for 300 users...
6500 ?
4006 ?
or multiple stackables ?
Jimmy wrote:
>Let say if i use a 100Mbps switch for 300 user for each floor. Will it be
>very slow? How do i really calculate the BW for each user. Doing an
>approximation? 100M/300 ?
>
>Cheers,
>Jimmy
>
Let say if i use a 100Mbps switch for 300 user for each floor. Will it be
very slow? How do i really calculate the BW for each user. Doing an
approximation? 100M/300 ?
Cheers,
Jimmy
""Jimmy"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> If i have to design network for 3 store
1- what media are the floors going to coonect with?
2- what are the core routers/switches going to have installed( gig or
copper)?
3- what apps are going to be on the floors and the admin floor ?
4- what protocols are running on the network?
5- is it all going to be layer 3 or a mix of L3 and L2
If you are serious about designing this netwoek and designing ir correctly
for scalability and functionality, pick up a good network design book.
My reccomendation is Top Down Network Design, by Priscilla Openheimer. U
have two copies one at home and one at the office, I refer to this tome
quite
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