Network with about 80 clients, 5 Static IP Addresses and multiple segments

Hi,

I am a semi experienced network administrator that has been assigned
to come up with a scheme to alleviate traffic on a congested network
that has about 80 clients and one dsl connection (Pro) from SBC.
The DSL connection is about 6 Mb down/384 up and they have given
us 5 static IP addresses.

Currently, the network runs on one router that is hooked up to the SBC
modem/switch. As you can see, the congestion on the network when
everyone tries to access the internet is slowing everybody down not to
mention the router having trouble keeping up with the traffic. I am
saying the router cannot keep up with the traffic because I can see
that we have had the same situation with several different makes of
routers (rebooting the router every 3-4 hours to clear congestion or
whatever that is ailing them). There are some business resources that
these clients access (printers, win 2003 server for some applications
etc.). Most clients need internet access with some needing access to
the LAN (business) resources. My thoughts were to segment people by
having 4 routers on the modem/switch and having a bridge between the
routers so that some that need access to the business resources can
occasionally access them without causing all the traffic to go on the
same LAN all the time. Will this work and what are the possible
advantages/disad of doing it the way that I am thinking of doing. My
thoughts so far are to make this happen with off the shelf parts like
Linksys and Netgear routers with a couple of bridges between them.
Please comment. Thanks for your help.


stan


stan

From: "stan" <(E-Mail Removed)>

| Hi,
|
| I am a semi experienced network administrator that has been assigned
| to come up with a scheme to alleviate traffic on a congested network
| that has about 80 clients and one dsl connection (Pro) from SBC.
| The DSL connection is about 6 Mb down/384 up and they have given
| us 5 static IP addresses.
|
| Currently, the network runs on one router that is hooked up to the SBC
| modem/switch. As you can see, the congestion on the network when
| everyone tries to access the internet is slowing everybody down not to
| mention the router having trouble keeping up with the traffic. I am
| saying the router cannot keep up with the traffic because I can see
| that we have had the same situation with several different makes of
| routers (rebooting the router every 3-4 hours to clear congestion or
| whatever that is ailing them). There are some business resources that
| these clients access (printers, win 2003 server for some applications
| etc.). Most clients need internet access with some needing access to
| the LAN (business) resources. My thoughts were to segment people by
| having 4 routers on the modem/switch and having a bridge between the
| routers so that some that need access to the business resources can
| occasionally access them without causing all the traffic to go on the
| same LAN all the time. Will this work and what are the possible
| advantages/disad of doing it the way that I am thinking of doing. My
| thoughts so far are to make this happen with off the shelf parts like
| Linksys and Netgear routers with a couple of bridges between them.
| Please comment. Thanks for your help.
|
| stan

SOHO Routers have high latency (one of the reasons they are inexpensive). For 80 users I
suggest connecting all users through a managed E-switch or switches. Then uplink the
E-switches to the following...

You may also want to add another Internet connection and then load balance the two WAN
links. The total bandwidth will be the sum of the two WAN download and two LAN upload
speeds. The Edimax PermaLink PRI-682
http://www.edimax.com/html/english/products/PRI682.htm has two WAN ports and performs load
balancing.

If your un-named ADSL modem is a modem+Router then put it in Bridge mode rather than Router
mode and connect to to WAN port 1. Then obtain seconday Internet link, another DSL line or
Cable and connect its modem to WAN port 2.

Assuming the two WAN links have the same bandwidth, this will give you 12Mb/s down /
..768Mb/s up. Or you can look into the second WAN link as having a higher than 384kb/s
upload speed and a lower download speed.

--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm