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A customer has two sites connected to PE-1 and a third site dual-homed to PE-2 and PE-3. If BGP is used as the PE-CE protocol, what is the total number of BGP and MP-BGP sessions required on PE-1 for a functional VPRN service? Assume that route reflection is not used.
Suggested Answer: D
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26 comments · newest first
KR
Kris
2 days ago
This question is tricky! I think it’s about understanding the connections.
NE
Nelida
7 days ago
Okay, I see your point. I’ll reconsider my answer.
JE
Jerry
12 days ago
I feel confident about option C too. It covers all connections.
PA
Paola
18 days ago
Exactly! So option C seems right.
AS
Ashley
23 days ago
I don’t think so, Nelida. Only one MP-BGP session is needed for PE-2 and PE-3.
NE
Nelida
28 days ago
I’m not sure. Could it be option D? Two BGP and two MP-BGP sessions?
JE
Jerry
1 month ago
I agree with Paola. The MP-BGP session is needed for the dual-homed site.
PA
Paola
1 month ago
Yeah, I’m leaning towards option C. Two BGP sessions make sense for the sites.
AS
Ashley
1 month ago
This question is tricky! I think it’s about understanding BGP sessions.
RE
Reed
2 months ago
Same here! It’s all about the connections.
KA
Kanisha
2 months ago
I just hope I remember the details during the exam.
DA
Daren
2 months ago
Exactly! It covers the dual-homed site well.
DE
Derrick
2 months ago
Right! So, C seems balanced with 2 BGP and 1 MP-BGP.
RE
Reed
2 months ago
But don’t forget about the MP-BGP sessions!
KA
Kanisha
2 months ago
I feel like option D makes sense too. Two BGP sessions for the sites.
DA
Daren
3 months ago
Yeah, I agree. I’m leaning towards option C.
DE
Derrick
3 months ago
This question is tricky! I think it’s about understanding the connections.
DY
Dyan
3 months ago
Are we sure about this? Seems a bit off to me.
JI
Jina
3 months ago
Totally agree with Daniel, that makes sense!
RE
Reynalda
3 months ago
Wait, why would there be MP-BGP sessions on PE-1?
DA
Daniel
4 months ago
I think it's option C, so 2 BGP and 1 MP-BGP.
CA
Catalina
4 months ago
PE-1 needs 2 BGP sessions for the two sites.
MA
Magda
4 months ago
I'm a bit confused about the total count. Do we need to account for both the PE-CE and PE-PE connections separately? I hope I remember the right formula!
RU
Rueben
5 months ago
This question feels similar to one we practiced where we had to count sessions based on the number of connections. I think we might need one MP-BGP session for the dual-homed site.
CE
Celeste
6 months ago
I remember something about MP-BGP sessions being required for VPNv4 routes, but I'm not sure how many we need here.
SI
Simona
6 months ago
I think we need to consider the number of customer sites connected to PE-1. There are two sites, so maybe that means two BGP sessions?