Discuss Ericsson ECP-206 Exam Topic 4 Question 24

Review the exhibit.

A service provider wants to connect the sites for two customers (indicated in red and green in the exhibit). The two customers are using the same IP ranges 192.168.0.0/16.

Referring to the exhibit, what should the service provider do to accomplish this task?

AImplement L3VPN using the MP-BGP protocol.

BConnect each customer to dedicated PEs.

CUse a separate OSPF instance for each customer.

DUse a unique AS number for each customer.

Suggested Answer: A

Referring to the exhibit, the service provider should implement L3VPN using the MP-BGP protocol to connect the sites for two customers (indicated in red and green in the exhibit). L3VPN is a type of VPN that uses MPLS to provide IP connectivity between customer sites across a service provider network. L3VPN allows customers to use overlapping or identical IP addresses without causing conflicts or requiring NAT. L3VPN uses MP-BGP to exchange VPN routes between PE routers, which are routers that connect customer networks to the service provider network. MP-BGP is an extension of BGP that can carry multiple address families, such as VPNv4 or VPNv6, along with additional attributes, such as route distinguisher (RD) and route target (RT).RD is used to make customer routes unique within the service provider network, while RT is used to control which routes are imported or exported between different VPNs3.

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34 comments · newest first

Lindsey 10 months ago

OSPF instances won't solve the overlap issue.

Vannessa 11 months ago

Using a unique AS number is a solid choice too.

Olene 11 months ago

Surprised they both use the same IP range! How does that even work?

Dahlia 11 months ago

I think connecting to dedicated PEs makes more sense.

Gilma 11 months ago

L3VPN with MP-BGP is the way to go!

Craig 12 months ago

Using unique AS numbers sounds familiar, but I thought that was more about routing policies than solving the IP overlap issue. I'm leaning towards option A.

Bok 12 months ago

I practiced a similar question about OSPF instances, but I can't recall if it really applies here. Option C might not be the best fit.

Luis 12 months ago

I'm not entirely sure, but I think connecting each customer to dedicated PEs could help isolate their traffic. Maybe option B?

Aliza 1 year ago

I remember studying about L3VPNs and how they can help with overlapping IP addresses, so option A seems like a good choice.

Johnetta 1 year ago

I'm pretty confident this is an L3VPN question. Option A seems like the right approach to me, but I'll double-check the details.

Crista 1 year ago

I'm a bit confused by the IP range overlap. Does that mean we need to use some kind of VPN solution? I'm not sure which option is best.

Refugia 1 year ago

Okay, I think I've got this. The key is to isolate the two customers' networks, so I'm leaning towards option B.

Leonor 1 year ago

Hmm, this looks like a tricky one. I'll need to carefully review the exhibit and think through the options.

Tamra 1 year ago

The OSPF instance for each customer in option C seems interesting, but I'm not sure if that's the most efficient solution here. I'll have to weigh the pros and cons.

Brinda 1 year ago

I've seen questions like this before, and the key is to pay attention to the specific wording of each statement. Some of these might seem similar, but there are likely subtle differences that will determine which ones are true.

Pa 1 year ago

I'm not entirely sure about this one. I'll need to review the information on custom stencils and editors to make sure I understand the differences.

Vi 2 years ago

C) Use a separate OSPF instance for each customer? Sounds like a lot of extra work to me. I'd go with B) for the win.

Margurite 2 years ago

Ha! D) Use a unique AS number for each customer? That's like trying to put a square peg in a round hole. Clearly not the right answer.

Dominga 2 years ago

↳ replying to Margurite

Using a separate OSPF instance for each customer might be a good way to avoid conflicts.

Venita 2 years ago

↳ replying to Margurite

Implementing L3VPN using the MP-BGP protocol could also work to separate the IP ranges.

Diane 2 years ago

↳ replying to Margurite

I think connecting each customer to dedicated PEs would be a better option.

Lavonda 2 years ago

↳ replying to Margurite

Agreed, using a unique AS number for each customer doesn't seem like the best solution.

Kindra 2 years ago

I believe using a unique AS number for each customer would be the most efficient way to accomplish the task.

Harley 2 years ago

Hmm, I'm not sure. Maybe A) Implement L3VPN using the MP-BGP protocol? That sounds like a more robust and scalable solution.

Pamella 2 years ago

↳ replying to Harley

Yeah, that does seem like a reliable solution for connecting the sites with the same IP ranges.

Izetta 2 years ago

↳ replying to Harley

I think A) Implement L3VPN using the MP-BGP protocol is the best option.

Sabina 2 years ago

I disagree, I think connecting each customer to dedicated PEs would be a more secure option.

Lizette 2 years ago

Definitely B) Connect each customer to dedicated PEs. That's the only way to keep their IP ranges separate and avoid any potential conflicts.

Ligia 2 years ago

↳ replying to Lizette

Implementing L3VPN using the MP-BGP protocol could be another option, but connecting to dedicated PEs is a simpler solution.

Wilburn 2 years ago

↳ replying to Lizette

Using a unique AS number for each customer could also work, but connecting to dedicated PEs seems more straightforward.

Gail 2 years ago

↳ replying to Lizette

It's important to keep their IP ranges separate to avoid any conflicts.

Gwenn 2 years ago

↳ replying to Lizette

I agree, connecting each customer to dedicated PEs is the best solution.

Clarence 2 years ago

I agree with Meghann, using L3VPN with MP-BGP would be the best solution to connect the sites for both customers.

Meghann 2 years ago

I think the service provider should implement L3VPN using the MP-BGP protocol.

Ericsson ECP-206 Exam - Topic 4 Question 24 Discussion