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What would be the best senario to develop failover for a point to point network using (2) Cisco 1841's a DSL line and a edgewater router?

I have a cisco  1841router providing internet connectivity
as well as another 1841 for MPLS
and a edgewater router to carry VOIP
and a adsl line.
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manthony09842
Asked:
manthony09842
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1 Solution
 
Galtar99Commented:
How many sites are you connecting?  How large is each site?  Many a network diagram somewhere to review.  Need to figure out what you have now and where you want to be.
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manthony09842Author Commented:
Ideally,
I want to utilize all three connections.  This is all for one site...What would be the best way to set this up
With load balancing for redundancy or failover
 
-Traffic destine for my Hong Kong offices using  MPLS .
-Computer traffic for the internet goes over  GID (internet connection) T-1
-And my IP Phone traffice going over the qwest T-1 line.....


I have two cisco 1841 routers with integrated csu/dsu
each connected with a dedicated T-1 link
Also have a Edgewater router to support VOIPand its own T-1 link
and a HP Procurve switch.

My remote office supports about 20 users

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Galtar99Commented:
Maybe the best solution is to consolidate the technologies you have and then setup redundancy.  Does all your traffic go out over the internet or do you have a private WAN too?  Is the VOIP going over the internet or to another office.  I'm a little confused why you have some many WAN connections.  How many sites do you have on your MPLS connection?
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manthony09842Author Commented:
Four Internet Connections:
 - T1 - MPLS network providing VPN service to HK site to site  
- T1 - GID network connection to Internet
- T1 - providing network connectivity for IP phones VOIP is going to another office.  Which is supprted by an outside vendor.
- DSL - providing backup internet for IP phones .

I know there is alot of WAN connectivity. But I am not able to change the scheme.
thanks in advance for your advice


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Galtar99Commented:
There's *GOT* to be a way to consolidate those WAN links and recover costs.  You need to start a conversation with all your providers to consolidate down to one or two WAN connections.  Once you have everything consolidated then you can start looking at a good redundancy.  Because with the infrastructure you have now, you'll need several redundancies and it just isn't practical.  Maybe inform your provider what you're trying to do to build in redundancies.  When providers tell you it can't be done any better then they really are not  thinking in your best interest.  They're making a lot of money off of you and don't see the benefit to them to make any changes.
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manthony09842Author Commented:
Thanks,,,
What would be a good way to consolodate those WAN Links?
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Galtar99Commented:
Depending on your situation, VPN's across your existing internet connection can be used for secure connections to other offices, vendors and suppliers.  Then you'd just need a redundant physical internet connection and VPN device.

I'm not entirely sure why you have a T1 just for IP Phones.  One of the benefits of MPLS is to run VOIP across it and save on toll charges to your other offices.  If it's for vendor management, then I can maybe see it, but I wonder if they couldn't just use a VPN instead to your network across the internet.

I'm sure there's a good reason why you have so many connections and only by engaging all your providers and vendors are you going to be able to find a solution to consolidate them.  It also depends where they are technically and what they feel comfortable deploying, because ultimately they're going to have to support it too.  Just simply opening a dialogue and expressing your intentions may create positive results.
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manthony09842Author Commented:
Thank you for your assistance.
I have an interesting idea. I will share it with you in the following message I send you.
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Galtar99Commented:
Any updates?
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manthony09842Author Commented:
I appreciate hanging in there with me but I have this unusual situation where I have a client who
Has multiple wan links (3 total) they want me to connect three 1841 routers to a non cisco switch

one router is running mpls over a t-1 span to another 1841
the other router is a 1841 router pointing to a ISP for internet connectivity.
and the last router is a non cisco L3 device point to point connection for the phones

They want all these devices be connected to the switch and have the traffic going only to the devices specified for the particular networks...eg the non cisco L3 device for phones only
the internet traffic to point to the cisco 1841  router that is designated for the internet connection
AND the MPLS point to point traffic designated for a cisco 1841.........

I know it sounds crazy....... but aside from my HSRP solution what do you think might be the best way to approach this mess?



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Galtar99Commented:
I don't know much about the Edgewater, depending on how you do routing, you can put another interface in the 1841 and setup BGP on it so it can load balance to another ISP.  You have the added benefit of increasing bandwidth and you have fail over capabilities.  You'll have to check to make sure your 1841 has enough memory for this though.  BGP can be a little demanding depending how you setup it.  

If you spring for another router and setup HSRP (Cisco proprietary, no load balancing), GLBP (will load balance, open source), or VRRP (open source, no load balancing)
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manthony09842Author Commented:
thanks for your reccomentdation/s at this point it seems to be a fluid situation. The Client I am supporting will contact me as to what solution they are going to go with.
I cant tell you how much your insights have helped me an I will keep you posted as to how this pans out.
Thanks so much...I will talk to you later on and update you
Mike A
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Galtar99Commented:
Ok, thanks.  Don't forget to close out this question.  Good luck.
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manthony09842Author Commented:

I managed to get the client to have the client agree upon using just two T-1 links

My question....
I have a T-1 link for internet traffic
I have another T-1 link for a point to point network for access to exchange services
And I have 1 HP Procurve switch
What is the best way to provide access to both the internet and Point to point network using the switch for the users?
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Galtar99Commented:
A good scalable solution would be to have a core router that routes between your two WAN routers and your LAN.  Or you could move the WAN interface from one router into the other router (if you have space) and have that be your WAN router and the other one be your core router.  (It really depends on how many subnets you have on your LAN and what the plans are for the WAN)  I might be needlessly making things more complicated.  Only you can determine what is best based on the needs of your organization.

If budget doesn't allow you can add (if you don't already have a spare) an ethernet interface in one of your routers and it can route between your WANs and the LAN.  

The router you're retiring could serve as a core router, depending on the interfaces it has.

As a general rule, I follow the hierarchical network design that I was taught by Cisco.  See below:

http://www.webpronews.com/topnews/2004/02/05/understanding-network-models-the-cisco-network-design-model
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Galtar99Commented:
Any updates?
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manthony09842Author Commented:

Sorry for the delayed response. I was out off town for a week.

Regarding my issue with consolidating and providing a scalable solution.
I was able to provide internet, MPLS and VOIP. it was nessasary to reconfigure The Edgewater (VOIP)router to exist on the same network as the MPLS Router  and add a static route
I was able to ping our AD server in Hong Kong
I just have to disable DHCP on the MPLS or the Edgewater router.
I willl be sure to use the cisco hirearcical network design model to provide better organization to network design and troubleshooting.
Thanks much!

I will go ahead and close out this question.
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