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Router R2 receives a route to 192.168.4.0/29 from router R4 and sets the local preference to 110. Router R1 receives the route to 192.168.4.0/29 from router R3, and sets the local preference to 80. There is a full iBGP mesh in AS 65540, but router R5 only has a physical connection to router R1. Which path does traffic destined to 192.168.4.0/29 take from router R5?
Suggested Answer: C
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29 comments · newest first
DE
Deja
11 months ago
Local preference matters, so C is the clear choice here!
MA
Martha
12 months ago
Wait, why does R5 not connect directly to R2? That seems odd.
EL
Elmira
12 months ago
I think B could be a possibility too, but not sure.
JU
Jules
1 year ago
Definitely going with C, R5-R1-R2-R4-R8 makes sense!
LA
Lashawna
1 year ago
R5 only connects to R1, so it has to go through R1.
CL
Clement
1 year ago
If R5 only connects to R1, I guess it has to follow R1's path. So maybe it goes R5-R1-R2-R4? That sounds right, but I’m not entirely sure.
BU
Bulah
1 year ago
I'm a bit confused about the full iBGP mesh. Does that mean R1 can still reach R2 directly? I might be overthinking this.
LU
Luisa
1 year ago
I think I practiced a similar question where local preference was key. Since R2 has a higher preference, I feel like R5 should go through R2.
DO
Dorathy
1 year ago
I remember something about local preference affecting route selection, but I'm not sure how R5's connection to R1 plays into this.
MA
Marcelle
1 year ago
The Sensor Report seems like it might provide some relevant information, but I'm not sure if that's the best option here. I'll need to consider the other choices as well.
JA
Janey
1 year ago
Hmm, I'm a bit confused on the best way to handle the invalid data. Deleting the rows with issues seems risky, but validating everything first could slow things down. I'll need to think through the tradeoffs carefully.
MA
Margarita
1 year ago
A web application firewall could be a good option to block malicious tracking, but I'm not sure if that's the most effective at an enterprise level.
LA
Laquanda
1 year ago
Ooh, this is a tricky one. Gotta love those sneaky BGP questions, am I right?
LA
Lavonna
1 year ago
That makes sense, A) R5-R2-R4-R8
MO
Mose
1 year ago
I think it's A) R5-R2-R4-R8
CH
Chara
1 year ago
A) R5-R2-R4-R8
LE
Lelia
1 year ago
Haha, this reminds me of that time I took a BGP exam and thought the answer was 'all of the above'. Glad I learned from that mistake!
IL
Iluminada
1 year ago
I'm leaning towards option C. The path through R1-R2-R4-R8 seems to make the most sense given the information provided.
LE
Lenny
1 year ago
Hmm, but R5 only has a physical connection to R1, so I'm not sure the traffic can actually go through R2. Let me think this through...
BR
Brittni
1 year ago
True, but since R5 only has a physical connection to R1, the traffic will go through R1, R3, R4, and then R8.
JU
Julianna
1 year ago
But R2 has a higher local preference, so maybe it will go through R2 instead.
AL
Alesia
1 year ago
I think the traffic will go through R1, R3, R4, and then R8.
JO
Joni
1 year ago
The local preference definitely plays a key role here. With R2 having a higher local preference, I'd say the traffic should take the path through R2.
YU
Yuki
1 year ago
So, the traffic destined to 192.168.4.0/29 from router R5 will go through R5-R2-R4-R8.
OR
Oren
1 year ago
Yes, R2 has a local preference of 110, which is higher than R1's local preference of 80.
ST
Stephen
1 year ago
I think the traffic will take the path through R2 because of the higher local preference.
AN
Antonio
2 years ago
But R1 has a lower local preference than R2, so traffic should go through R2, right?
DE
Devorah
2 years ago
I disagree, I believe the correct path is C) R5-R1-R2-R4-R8.
AN
Antonio
2 years ago
I think the answer is B) R5-R1-R3-R4-R8.