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A network engineer must connect a Cisco UCS Fabric Interconnect cluster to the Cisco ACI. VMware ESXi hypervisors have been installed on Cisco UCS blades and a VMware VMM domain has been configured. However, virtual machines fail to reach their default gateway in the Cisco ACI Fabric. The engineer investigates the issue and notices that the VMware Distributed Switch (VDS) teaming policy is set to "Route based on IP hash". Which action resolves the issue?
Suggested Answer: A
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28 comments · newest first
GE
Geraldine
11 months ago
Really? I thought IP hash was supposed to work fine!
AS
Ashton
11 months ago
Definitely not B, that won't help with the gateway issue.
YO
Youlanda
11 months ago
Wait, disabling Network I/O Control? That seems risky.
KI
King
11 months ago
I think option D is the way to go!
CH
Chun
12 months ago
Sounds like a VDS policy issue.
LE
Leah
12 months ago
I have a vague memory of the On-demand EPG resolution setting being relevant in these scenarios. But I'm not confident if disabling it would actually resolve the gateway issue.
PA
Pamela
1 year ago
This question seems familiar; I think we practiced something similar where the VDS settings were crucial. Could it be configuring the vSwitch Policy on a VDS?
BE
Bernardine
1 year ago
I'm not entirely sure, but I feel like the IP hash setting might be causing issues with traffic flow. Maybe disabling the Network I/O Control could help?
RE
Rene
1 year ago
I remember we discussed the importance of vSwitch policies in our last study session. I think configuring the vSwitch Policy on the VMM domain could be the right move.
GO
Goldie
1 year ago
Configuring the vSwitch policy on the VMM domain sounds like the most straightforward solution. I'll make sure to double-check the details before selecting that option.
LI
Lili
1 year ago
I think the key here is to figure out how the VDS teaming policy is affecting the connectivity to the ACI fabric. Disabling the Network I/O Control might be worth a try.
DE
Destiny
1 year ago
Okay, let's see. The issue is with the VMs not reaching the default gateway in the ACI fabric. The clue seems to be in the VDS teaming policy, so I'll focus on that.
GR
Gracia
1 year ago
Hmm, this seems like a tricky one. I'll need to carefully read through the details and think about the different networking components involved.
QU
Quentin
1 year ago
Ah, I've seen this before! The environment variable to enable image signing when pushing to a registry is DOCKER_CONTENT_TRUST=1. I'm confident that's the right answer.
ED
Edna
2 years ago
I'm not sure, but maybe disabling the VMware Network I/O Control on the VDS could also help.
ME
Melodie
2 years ago
I bet the person who wrote this question has a wicked sense of humor. Cisco and VMware, a match made in network engineering heaven!
YU
Yuki
2 years ago
Ah, the age-old battle between VMware and Cisco. D seems like the logical choice to resolve this problem.
LE
Leonor
2 years ago
Reta: Let's go ahead and make that change then.
SA
Samira
2 years ago
Agreed, that should help resolve the issue with the virtual machines reaching their default gateway.
RE
Reta
2 years ago
Yeah, configuring the vSwitch Policy on a VDS sounds like the right move.
OR
Ora
2 years ago
I think we should go with option D.
JA
Jarod
2 years ago
I agree with Iola. Configuring the vSwitch Policy on a VDS should resolve the issue.
PE
Peggie
2 years ago
Haha, looks like the network engineer needs to brush up on their Cisco ACI knowledge. Gotta love those tricky VMware-Cisco integration issues!
SE
Selma
2 years ago
The issue is clearly with the VDS teaming policy. 'Route based on IP hash' doesn't play well with the ACI fabric. D is the way to go!
RE
Reid
2 years ago
C: We should configure the vSwitch Policy on a VDS to resolve the problem.
AL
Alesia
2 years ago
B: Yes, it's set to 'Route based on IP hash'. That's probably causing the issue.
VE
Veronika
2 years ago
A: Have you checked the VDS teaming policy on the VMware Distributed Switch?
IO
Iola
2 years ago
I think the correct action is to configure the vSwitch Policy on a VDS.