Solved

Not able to ping the servers - request time out

Posted on 2016-09-23
10
93 Views
Last Modified: 2016-09-25
Hi

We use VMware, I am not able to ping some of the servers which includes the DC as well.
I am pinging them from my laptop that is connected to the core switch. Please let me know how to trouble shoot this. Also I went to the Vsphere console and right clicked the DC1 and open console and logged in to the DC1 and when I ping other servers from the DC 1, it is not pinging, I get request time out, and some times it pings.
We have a cores switch and LACP done on it, will this be a problem with core switch.
Not sure where the problem could be.
Please let me know how to trouble shoot this

Thanks
Any help to troubleshoot would be great
0
Comment
Question by:lianne143
  • 4
  • 3
  • 2
  • +1
10 Comments
 
LVL 13

Assisted Solution

by:Norm Dickinson
Norm Dickinson earned 125 total points
ID: 41812804
You may be on a different VLAN or segment of the network when trying to ping? That would be controlled at the router or firewall typically, but also could be a smart switch.
0
 
LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 125 total points
ID: 41812831
LACP is this configured for the ESXi hosts ?

are you using standard or distributed switches, because LACP is NOT SUPPORTED for ESXi hosts, only static trunks.

Note: LACP is only supported in vSphere 5.1, 5.5 and 6.0 with vSphere Distributed Switches and on the Cisco Nexus 1000V.

Source - see here

Sample configuration of EtherChannel / Link Aggregation Control Protocol (LACP) with ESXi/ESX and Cisco/HP switches (1004048)

Also make sure ALL VMs are using VMXNET3 interface, and VMware Tools is installed to support this interface.
0
 

Author Comment

by:lianne143
ID: 41812836
previous before the problem has happened, I  have successfully pinged the servers from the same LAN cable connected to the core switch.
0
 
LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 125 total points
ID: 41812861
did you read my post ?
0
 

Author Comment

by:lianne143
ID: 41813060
We have 2 brocade switches for SAN  and  LACP is configured on cisco switches, but not sure if LACP is configured for ESX .
It was a working setup, all of sudden the network went down, will it be an issue with the brocade switches ?
0
Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

 
LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 125 total points
ID: 41813107
LACP not supported for ESXi.
0
 

Assisted Solution

by:lianne143
lianne143 earned 0 total points
ID: 41813117
Is there a way to find, if LACP is configured for ESXi
In case if it was configured at first instance, it must have not worked , it has been running from last 3 years.
Just my thought.
This is a new type of problem which has happened today, which I have come across for the first time.
0
 
LVL 13

Assisted Solution

by:Norm Dickinson
Norm Dickinson earned 125 total points
ID: 41813231
Don't overlook the various cabling issues that could be present. Check connections and maybe give the relevant connections a little push to ensure they are fully seated. Sometimes the biggest problems stem from simple issues like connectors not being snug.
0
 
LVL 118

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 125 total points
ID: 41813478
Check your physical port groups on the physical switches, are they configured for LACP.

Do you use trunk ports to connect physical switches to ESXi ?

There is nothing to check on ESXi.
0
 
LVL 19

Accepted Solution

by:
compdigit44 earned 250 total points
ID: 41815065
So this was working then broke. Let's take a look back at the event before the problem started.

1) Any changes to the network switch / vCenter vDS?
2) Can you please upload a screen shot of the setting on one of your vDS in regards to its teaming policy
3) Are your vDS ports group tagging traffic or is the physical switch?
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In this article, I will show you HOW TO: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

27 Experts available now in Live!

Get 1:1 Help Now