ESXi not coming up after port trunking.

Hi All,

Initially my host was running fine, Configured data store But After trunking ports the host is not coming up and showing request timed out,
Kindly assist.
Techie solutionVMware SpecialistAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

RafaelCommented:
You configured trunking but what is the other side configured for ? If it is not matching on both sides it will not work properly.
0
Techie solutionVMware SpecialistAuthor Commented:
What do you mean by other side?
0
GG VPCommented:
Did you rebooted your host after trunking?

Are you able to access the console of your host? (by iLO / DRAC) or do you have physical access to the box?

What version of ESXi you are running, Hardware model?
0
The 7 Worst Nightmares of a Sysadmin

Fear not! To defend your business’ IT systems we’re going to shine a light on the seven most sinister terrors that haunt sysadmins. That way you can be sure there’s nothing in your stack waiting to go bump in the night.

gheistCommented:
Remove all but one trunked connections. It should fail over to swhere you were before (provided you configured at least one management network adapter before trunking)
0
Techie solutionVMware SpecialistAuthor Commented:
Yes I rebooted the host, and able to see the console through ILO.
It is 5.1, ProLiant DL580 G5.
0
gheistCommented:
Will not help.
You need to remove all but one trunked cables, so all trunk protocol mismatches with switch disappear.
0
Techie solutionVMware SpecialistAuthor Commented:
Hi All,

Can I try "switchport nonegotiate " on Trunking?
Is there any harm in this.
0
giltjrCommented:
By the other side they mean the switch ports you are connected to.  Both "sides", ESXi and the switch, must be configured for trunking.
0
Techie solutionVMware SpecialistAuthor Commented:
It is configured for trunking but can I add this too (switchport nonegotiate ) to my configuration on Cisco switches.

I saw a vmware kb article and they are suggesting to do so but I dont know the fact so I am not proceeding with this.
0
giltjrCommented:
O.K. "Trunking" in this instance is something different that what I think gheist is talking about.

Are you allowing only specific VLAN's over the link? Or are you allowing all VLAN's?  Are you using VLAN 1 as the native VLAN?

 Can you post the config of the port on the Cisco switch?
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Techie solutionVMware SpecialistAuthor Commented:
Yes, this is the article I was talking about.
0
gheistCommented:
To regain connectivity you need to unplug cables. (or shutdown surplus ports on the switch)
0
giltjrCommented:
@gheist - I think in this situation the term "trunking" is Cisco mode of trunking, which means using VLAN tagged frames.  It's not combining two or more connections so they logically appear as a single connection (LACP/LAG, or Cisco Etherchannel)  which is what most other venders call trunking.
0
gheistCommented:
I know... But then again why connectivity is lost completely?
0
giltjrCommented:
@gheist. My initial assumption is that he does not have correct VLAN's coded, but you know he has not said if he has multiiple NIC's or not.  So you may have a point, if one is configured for tagged VLAN's and one is not that could cause a problem.

@Techie solution:

1) Do you have more than one NIC on your ESXi host?
2) Did you configure both NIC's for trunking?
3) Did you configure both switch ports for trunking?
4) Do you have the NIC's in a NIC team/bonded.
5) Are both NIC's connected to the same switch or are the connected to different switches.
6) When you say "the host is not coming up", are you talking about the ESXi host or 1 or more indvidual VMs?
7) On the switch side have you allow all VLAN's that you need?  Can you post the config for the switch?
8) On the ESXi side is all traffic going over the same NIC/NIC's?  Meaning is guest, service console, and vmkernel going over a single NIC group of NIC's?  Or are you physically separating different types of traffic over different physical NICs?
0
Techie solutionVMware SpecialistAuthor Commented:
Hi all, thank you!

I have 8 nice configured in my host. All our trunked except the two Which is for vmotion and management network.

Now my host is working fine and I disabled DTP on nic0 and nic1.
It is working fine.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Networking Protocols

From novice to tech pro — start learning today.