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Exhibit.
Referring to the exhibit, Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) in a data center that uses an ERB architecture. What do you determine from the output?
Suggested Answer: B
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Understanding the Problem:
Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) within an EVPN-VXLAN environment using ERB architecture.
Analysis of the Exhibit:
The provided output includes information from the show route forwarding-table matching command for IP 10.1.2.1. The next hop is shown as vtep.32769, which indicates that the traffic destined for 10.1.2.1 is being forwarded into the VXLAN tunnel with the correct VTEP (VXLAN Tunnel Endpoint).
Conclusion:
Option B: Correct---The traffic from Host1 is entering the VXLAN tunnel, as evidenced by the next hop pointing to a VTEP. However, the issue could lie elsewhere, possibly with the remote VTEP, routing configurations, or the receiving leaf/spine devices.
30 comments · newest first
EV
Evan
11 months ago
I thought VXLAN tunnels were supposed to simplify things, not complicate!
TA
Tambra
11 months ago
Load balancing issues could also be a factor here.
ME
Merissa
11 months ago
Wait, are they really directly connected to leaf1? Seems off.
AH
Ahmad
11 months ago
Totally agree, that config is crucial!
SH
Sharmaine
12 months ago
Looks like the irb.20 interface might be the issue.
JU
Julieta
12 months ago
I think option D could be the right answer because if the irb.20 interface isn't configured, that would definitely block communication between the hosts.
MA
Marlon
1 year ago
I feel like option C might be misleading; I thought they would need to go through the spine switches instead of being directly connected to the same leaf.
TE
Teresita
1 year ago
I remember practicing a similar question where the VXLAN tunnel was involved, so I wonder if option B is relevant here too.
EL
Elizabeth
1 year ago
I'm not entirely sure, but I think option A could be a possibility since load balancing issues often cause communication failures.
FR
Frankie
1 year ago
This seems like a straightforward troubleshooting question. I'll start by analyzing the network topology and then consider each option to determine the most likely cause of the communication failure.
TA
Tamala
1 year ago
I'm a bit confused by the ERB architecture mentioned in the question. I'll need to review my notes on that before I can confidently select an answer.
GE
Georgiana
1 year ago
Okay, based on the information provided, I think the issue is likely related to the VXLAN tunnel configuration. Option B seems like the most likely answer.
JE
Jeannetta
1 year ago
Hmm, the exhibit shows some network topology information, but I'm not sure exactly what the problem is. I'll need to think through the options carefully.
SU
Suzan
1 year ago
This looks like a tricky networking question. I'll need to carefully analyze the exhibit and the options to determine what the issue is.
CA
Carolann
2 years ago
I'm going with option D. The irb.20 interface is the missing piece that's preventing the hosts from connecting. Time to brush up on my VXLAN configuration skills.
ST
Stephaine
2 years ago
Haha, imagine if the answer was 'The traffic is failing because someone spilled coffee on the router.' That would be a real head-scratcher!
AN
Anastacia
2 years ago
The traffic is entering the VXLAN tunnel, but that's not the problem here. The question clearly states that the hosts are failing to communicate, so the issue has to be elsewhere.
AL
Albina
2 years ago
D) The irb.20 interface is not configured on leaf1.
CR
Cristen
2 years ago
C) Host1 and Host2 are directly connected to leaf1.
TA
Tayna
2 years ago
C) Host1 and Host2 are directly connected to leaf1.
CA
Carissa
2 years ago
B) The traffic is entering the VXLAN tunnel.
MA
Marguerita
2 years ago
B) The traffic is entering the VXLAN tunnel.
RI
Rickie
2 years ago
A) The traffic is failing because load balancing is not configured correctly.
YU
Yun
2 years ago
A) The traffic is failing because load balancing is not configured.
HE
Hester
2 years ago
I agree with Kanisha, the problem seems to be with the VXLAN tunnel.
PA
Pa
2 years ago
I believe Host1 and Host2 are directly connected to leaf1.
KA
Kanisha
2 years ago
I think the issue is with the VXLAN tunnel.
JU
Justine
2 years ago
Hmm, looks like the issue is with the irb.20 interface not being configured on leaf1. I'm guessing that's the key to getting Host1 and Host2 to communicate properly.
MA
Malinda
2 years ago
User2: Maybe configuring that interface will fix the communication issue between Host1 and Host2.
AL
Alex
2 years ago
User1: I agree, the irb.20 interface on leaf1 seems to be the problem.