Solved

Wireless Network Design

Posted on 2007-11-29
3
271 Views
Last Modified: 2010-04-12
I have a customer who wants me to design a solution for a wireless WAN they are building. They are installing wireless equipment on top of approx. 30 radio towers with either FastEthernet or some sort of fiber handoff down to "huts" at the base of the towers. The WAN will span approx 150 miles and will form a ring. In the future other people (ISPs, companies, schools, etc.) will want to build to these towers and connect to the network. I'm going to assume a FE handoff for this design. This "interconnect" traffic will be considered "public". I am tasked with placing switches/routers in each hut to accomodate this network.

Requirements:
1. Minimum 200 MB between WAN sites
2. Redundancy
3. Ability to segment public/private traffic

Now I am considering a two switch configuration at each site. Something like two 3560-24TS switches which will cover redundancy and some flexibility with the SFPs ports. And it should have plenty of capacity with only 200 MB of site to site BW. I don't expect more than a handful of interconnects at the towers so the port count should be fine.

My concern is that I've never created a layer two network over a WAN. Is this recommended? Does spanning tree have issues at these distances? Or should I be giving each site it's own subnet and route traffic? If that's the case should I be looking at routers instead of L3 switches?
0
Comment
Question by:mmurraynet
  • 2
3 Comments
 
LVL 21

Accepted Solution

by:
from_exp earned 500 total points
Comment Utility
hi there!
your should understand what wireless solution will you use.
in case of synchronous links like Ceragons(www.ceragon.com) provide you can easyly create L2 wireless network with spanning tree or similar protocol
as for switches I would recomment 3750 series they have stack and they are better that 3560 models
if you don't need stack - you can look at 2960 series of switches  - they are pure L2 switches.

as for competitor to cisco you can take a look at Extreme X150, X250, X450a switches. We use them along with cisco and they are good enough.
one of the benefits of extreme's solution - EAPS instead of spanning tree. EAPS converges much faster
0
 
LVL 1

Author Comment

by:mmurraynet
Comment Utility
exp,

Thanks for the input. For the purpose of this design we will assume the solution is similar to Ceragon's.

So you don't see any issue with creating just the two subnets/vlans (public/private) across all towers?

0
 
LVL 21

Expert Comment

by:from_exp
Comment Utility
I would say this kind of solution allows you to create any number or vlans
but boxes themselves allow to allocate only requested bandwidth for each client
0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Join & Write a Comment

Suggested Solutions

There are times where you would like to have access to information that is only available from a different network. This network could be down the hall, or across country. If each of the network sites have access to the internet, you can create a ne…
Tired of waiting for your show or movie to load?  Are buffering issues a constant problem with your internet connection?  Check this article out to see if these simple adjustments are the solution for you.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now