HI,
what type of switch do you have?
It seems the IP SLA solution is good for you....
Best regards,
Istvan
Main Topics
Browse All Topics
Loading Advertisement...
Question
Layer 3 Switching with WAN Failover
Hey there,
I need some help determining which L3 switch I need to use. My goal is as follows. I have an internet connection, either a t1, cable, or dsl and a router, either a sonicwall or a netgear fvs. That router is connected to my layer 3 switch and distributes internet to everybody on the switch. Now I would like to implement another internet connection for failover. However I do not want to have the failover at the router. I would like to have the failover at the switch. Is this possible and what type of hardware do i have to have to accomplish this? Thank you for your advice.
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Subscribe now for full access to Experts Exchange and get
Instant Access to this Solution
- Plus...
- 30 Day FREE access, no risk, no obligation
- Collaborate with the world's top tech experts
- Unlimited access to our exclusive solution database
- Never be left without tech help again
Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.
- "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
- "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
- "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.
See what Experts Exchange can do for you.
Got a question?
We've got the answer.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
Need individual assistance?
Our experts are ready to help.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Want to learn from the best?
Read articles from industry experts.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Working on a long term project?
Store your work and research.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
What Makes Experts Exchange Unique?
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Trusted by the world's most respected brands.
Faithfully serving IT professionals since 1996.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Free Tech Articles
-
WARNING: 5 Reasons why you should NEVER fix a computer for free.
It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
-
SCCM OSD Basic troubleshooting
SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
-
Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
-
Create a Win7 Gadget
This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
-
Outlook continually prompting for username and password
There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
-
Backup Exchange 2010 Information Store using Windows Backup
There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...
Cloud Class Webinars
- Avoiding Bugs in Microsoft Access
Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
- Top 10 Best New Features in Visio 2010
Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
- IT Consultant Business Secrets Revealed
Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
- Disaster Recovery and Business Continuity
Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
- Organize Your Visio Diagrams with Containers and Lists
Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
- How to Us Objects, Properties, Events and Methods in Microsoft Access
Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...
Join the Community
Give a Little. Get a Lot.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Answers
Agree with Mikecr above. The cost factor of having an intelligent L3 switch doing the routing is not justifiable when you have to have another router anyway to do the NAT.
You might look into multi WAN capable firewalls.
If you are looking for physical redundancy of your Internet connections, then you will still have a single point of failure at the switch.
Cisco 3560 in 24 or 48 port, with or without PoE and probably "E" for Enhanced L3 routing
10/100 version2
List pricing..
WS-C3560V2-24TS-E Catalyst 3560V2 24 10/100 + 2 SFP + IPS (Enhanced) Image D USD 4,990.00
10/100/1000
WS-C3560G-24TS-E Catalyst 3560 24 10/100/1000T + 4 SFP + IPS (Enhanced) Image D USD 8,790.00
As far as I can tell the 8 port model does not come in Enhanced IP version, so won't suppor things like IP SLA's, or Policy Based Routing which will be the core of your solution.
I don't mean to question your motives, experience level, or expertise, but I feel like you are trying to shove a square peg into a round hole with a very expensive price tag.
We do this all the time with very expensive core routers with full L3 capabilities, like Cat6500's, but generally not with small switches.
If you could post even a crude drawing of what you have now and what you envision as your end-state, perhaps we can help you get to a working solution that is cost-effective for you.
Unfortunately, I have zero experience with other brand switches. I stick with what I know best. Perhaps other experts may have more experience with other brand L3 switches.
I still maintain that a router with multiple Ethernet ports, or even a Cisco ASA 5505 (8-port switch embedded) may do the trick.
3 Ways to Join
Business Accounts
- Perfect for organizations
- Multiple users
- Save over 36%
- Create a Business Account
Answer for Membership
- Earn free access
- Showcase your knowledge
- No credit card required
- Sign Up to Answer
Loading Advertisement...
by: mikecrPosted on 2009-11-06 at 11:00:53ID: 25761982
I wouldn't do that from the LAN switch side, I would do that from the router side that the internet connections are plugged into. Using a Cisco 1760/1721/1841, etc, router, you can use the tracking feature in the IOS so that if you lose an internet connection, your default route will change and go out your redundant connection.
If you were to do it from the LAN side, the client has no way of knowing if the internet connection is down so you wouldn't be able to configure multiple gateways on your clients workstations and get it to work.
The Cisco switches do a limited type of tracking but you would probably need at least a 3560 model which would be 10 times more than the router would cost even with the appropriate WAN cards.