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Beginner

Why client needs MPLS configuration on his side ?

Dear All

Usually MPLS is configured at ISP PE. But I heard MPLS is configured at CE client side. Why ? what is its advantage ?

Thank you

2 ACCEPTED SOLUTIONS

Accepted Solutions
Rising star

This makes it more

Do you mean MPLS VPN?

If so then this makes it more complicated and expensive for the customer. As a result they may choose to use another ISP who doesn't have these requirements:

- It is a risk to the provider. If they are not careful then their routes might start leaking into the customer network.

- The customer will now need network engineers who are skilled in MPLS VPN configurations and troubleshooting. For smaller companies this may be a bit of challenge.

- The customer needs a more expensive router that supports MPLS and MP-iBGP functionality in order to connect to the PE.

- The customer now needs to become involved in the VRF design as to which routes belong to which VRF. Depending on the number of routes involved this can be a time consuming process.

- Troubleshooting connectivity issues between the PE and CE are now more complicated and will potentially take longer to resolve.

Don't forget to rate helpful posts.

 

Highlighted
Rising star

Yes, RT will help prevent

Yes, RT will help prevent that.

MPLS VPN is being used now within large campus networks. See below this example from a university. It allows customers to virtualise their network so they can separate traffic between different groups of users. It also allows overlapping addresses and helps with security compliance.

Yes, you can rate posts by clicking on Correct Answer, and/or clicking on the stars below the post.

https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=81846&backBtn=true

10 REPLIES 10
Rising star

This makes it more

Do you mean MPLS VPN?

If so then this makes it more complicated and expensive for the customer. As a result they may choose to use another ISP who doesn't have these requirements:

- It is a risk to the provider. If they are not careful then their routes might start leaking into the customer network.

- The customer will now need network engineers who are skilled in MPLS VPN configurations and troubleshooting. For smaller companies this may be a bit of challenge.

- The customer needs a more expensive router that supports MPLS and MP-iBGP functionality in order to connect to the PE.

- The customer now needs to become involved in the VRF design as to which routes belong to which VRF. Depending on the number of routes involved this can be a time consuming process.

- Troubleshooting connectivity issues between the PE and CE are now more complicated and will potentially take longer to resolve.

Don't forget to rate helpful posts.

 

Beginner

Thank you for your helpful

Thank you for your helpful reply! Yes, MPLS VPN

I would like to know what is advantage of setting up MPLS at client site ? 

"- It is a risk to the provider. If they are not careful then their routes might start leaking into the customer network." --- what routes might start leaking into customer network ? If correct RT is configured, it could be helpful ?

If I want to rate the posts, I just need to click "Correct Answer", right ? 

 

 

Highlighted
Rising star

Yes, RT will help prevent

Yes, RT will help prevent that.

MPLS VPN is being used now within large campus networks. See below this example from a university. It allows customers to virtualise their network so they can separate traffic between different groups of users. It also allows overlapping addresses and helps with security compliance.

Yes, you can rate posts by clicking on Correct Answer, and/or clicking on the stars below the post.

https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=81846&backBtn=true

Beginner

Great! Thank you

Great! Thank you

BTW, Customer Edge (CE) Router connects to Provider Edge (PE) Router. Which one is CPE ? 

Rising star

The CE is the Customer

The CE is the Customer Premises Equipment (CPE).

Beginner

Usually client is not

Usually client is not responsible for configuration of CPE. If CE is CPE, it means that the client is not responsible for the CE. Am I right ? 

Beginner

Hi Yangfrank,clients are

Hi Yangfrank,

clients are responsible for their equipment and configuration.

 

Regards,

SN

Beginner

Thank you !

Thank you !

Beginner

You are welcome!If you have

You are welcome!

If you have additional questions, please do not hesitate to ask.

 

VIP Expert

DisclaimerThe Author of this

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

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In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

You would configure MPLS on the CE if the customer needed MPLS features, for example, if customer was already using MPLS internally and they wanted to extend it across a WAN provider's cloud.

Perhaps more often the customer doesn't use MPLS "natively", and so they don't configure MPLS on the CE.  However, they might still take advantage of an MPLS WAN cloud, "indirectly".  For example, the CE<>PE might have multiple interfaces, each hosting different VLANs or "MetroE" handoffs, or there might be a single CE<>PE link using VLAN tags (rather than MPLS tags).

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