How do companies connect to WAN

When it comes to WAN connections for companies, I have heard of MPLS, BGP, T1, in addition to Site to Site VPN (Which I think it is not considered as  WAN)

From Companies Network Engineer perspective
With MPLS, I believe the MPLS provider will configure the Customer Edge router then connect the router to the company Network, the engineer of the company does not have to configure anything.

With BGP , I am not sure what needs to be configured at the company level.
The same with T1 Line

Site to Site VPN is configured from A to Z by the company engineer as long as the company is connected to Internet.

Anyone to clarify on this question?

Thanks
jskfanAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
There are probably as many ways as people.

MPLS, T1 are physical connectivity methods. VPN is a protocol that runs over the connection to provide a secure tunnel from site (including remote workstation) to site (Office WAN).

I typically use IPsec VPN over DSL but you can use SSL as well I think.

I don't know in my VPN (Juniper, Cisco, NCP and so on) works over MPLS.   Here is a decent article that discusses VPN over MPLS.

http://searchenterprisewan.techtarget.com/guides/MPLS-VPN-fundamentals
jhyieslaCommented:
We used to have several T-1 lines that connected our main office to our remote main locations and we also used ISDN - then DSL to connect many of the smaller offices. DSL sites used site-site VPN connections.

Speed and cost pushed us in the direction of moving away from the T-1 lines to MPLS connections for our main connections and they seem to work pretty well.  For our much smaller locations we still use DSL or uVerse depending what's in the area, but are moving into a virtual desktop scenario so we just connect them directly across the Internet through a DMZ at my end so they get a virtual desktop. This has almost eliminated our need for VPN's.
Justin DurrantSr. Engineer - Windows Server/VirtualizationCommented:
To also add, check out the Sophos UTM line.. they work great for non network engineer types, are easy to deploy and work across any WAN medium. :)
SolarWinds® VoIP and Network Quality Manager(VNQM)

WAN and VoIP monitoring tools that can help with troubleshooting via an intuitive web interface. Review quality of service data, including jitter, latency, packet loss, and MOS. Troubleshoot call performance and correlate call issues with WAN performance for Cisco and Avaya calls

jskfanAuthor Commented:
From Company Network Engineers perspective, which part of the network are they responsible to configure when it comes to MPLS, BGP, and if they have been given T1 line
jhyieslaCommented:
In our scenario the ISP configures the MPLS settings along with the Edge device. We do use BGP to connect some sites to the main one and we have on-site BGP routers that we configure; or the BGP is a part of the switches we use and we would also configure those.
jskfanAuthor Commented:
With MPLS, I believe the provider will run kind of Ethernet cable between provider Edge router and Customer Edge router.. The company has nothing to configure

With BGP, I am not sure what kind of connection link goes between company router and the provider..
and what does the engineer need to configure to get the company traffic goes through the provider, and how does  the traffic gets to its destination? considering this is different approach than MPLS

The same question of BGP applies for T1

Thank you
jhyieslaCommented:
I believe in our scenario the MPLS cloud is what all the circuits hook to. I don't think that BGP is "required".  However, and I can't tell you exactly why, we do have a BGP router at each endpoint or we have a switch with BGP built-in and that's what actually makes our connections work. I can't really give you any more information beyond that.
David Johnson, CD, MVPOwnerCommented:
With MPLS, I believe the provider will run kind of Ethernet cable between provider Edge router and Customer Edge router.. The company has nothing to configure It is like plumbing the city provides a water inlet and a meter and you are responsible afterwards.  There still is a lot of configuration and setup involved i.e. your router,

With BGP, I am not sure what kind of connection link goes between company router and the provider..
and what does the engineer need to configure to get the company traffic goes through the provider, and how does  the traffic gets to its destination? considering this is different approach than MPLS
Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange routing and reachability information between autonomous systems (AS) on the Internet. (wikipedia) It has nothing at all to do with how you get your internet.

T1/IDSN/Cable Modems/MPLS/Satellite is your connection to the internet. Anything past that is your responsibility, routing, switching, firewalls, ...
jskfanAuthor Commented:
The provider configures MPLS for you
BGP /T1 you will have  to do the  configuration

any basic example on what you need to configure ?
jskfanAuthor Commented:
I thought There are WAN connections and Internet Connections

--WAN Connection is like MPLS , they usually provide you with Ethernet connection(if I am not wrong)

--Internet Connections , just like the one you have at home but with larger bandwidth, like T1 or T3 lines
Now will IPsec site to site VPN run on T1, T3 ?

Will BGP run on T1,T3 or it needs something like BGP ?

What I am trying to get to is, what type of physical connection (Ethernet,DSL,T1,T3)should I have prior to decide which type of  logical connection should I uses (MPLS,BGP,IPSec Site to Site VPN,etc...)

Thanks
logical
jskfanAuthor Commented:
oops:
Will BGP run on T1,T3 or it needs something similar to MPLS (Ethernet) ?
David Johnson, CD, MVPOwnerCommented:
MPLS,BGP,IPSec Site to Site VPN,etc...)

BGP and the above don't care about the physical layer (mpls/t1/t3/cable/satellite) it is a routing protocol that runs in a lower layer.
T1, DS-1      1.544 Mbps, T3, DS-3      44.736 Mbps (both are symmetric)
jskfanAuthor Commented:
Does that mean you can run MPLS on DSL connection ?
David Johnson, CD, MVPOwnerCommented:
MPLS is typically run on a DSL connection these days. A subscriber typically only gets the MPLS edge router and the carrier has the other routers.
https://en.wikipedia.org/wiki/Multiprotocol_Label_Switching

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jskfanAuthor Commented:
Thank you
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Routers

From novice to tech pro — start learning today.