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Port Group Questions in VMWare

Hello Experts,

   I Know there are 3 types of port groups when we talk about VMWare.

  1.VMkernel
  2.Service Console
  3.Virtual Machine Port Groups.

Ok Below are my questions on them

1). VMkernel is used for vMotion , SAN, svMotion tasks , now what kind of IP address we use it for this port? Is it recommend to use an ISP provided IP address ( As during vMotion we may use WAN to transfer the VM's from one host to another) or we can use private IP address for this? What are the consideration to assign an IP address to it.

2).When I try to create one more VM Port Group (Host---->Configurations------->Networking----->Add Networking) , it is by default giving the VLAN Options? From where these VLAN's are popping up? Do we need to create these ? If yes , where and How?

3). Is it possible to see what port a VM is connected in a Virtual Machine Port Group which is defined say in vSwtich0?

4) . How to create Service console port ? I see only two option when I click on add networking at Host level ? My Understanding is , Each Host need one service console port ? Am I right Here.

Thanks in advance,

_Prashant_
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Prashant Girennavar
Asked:
Prashant Girennavar
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2 Solutions
 
BusbarCommented:
1- you don't need a public IP, you need any IP from your internal LAN.
2- you don't need to assign VLANs unelss you are using VLANs in your network.
3- once the PG is created you can see from the networking section to which PG and VM is mapped using the maps.
4- no need to create a service console port, it is an old term, you create a management interface from the installation or on the ESXi host when you configure management interface.
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Prashant GirennavarAuthor Commented:
Question 1 - Thanks for the answer

Question 2 - How the VLAN are getting populated by defaul there? Are these VLAN defined on that site? How VMWare is seeing those?

Question 3 - I dont see any Map option in Networking , Is it a thrid party tool? If Yes How I can I use it?

Question 4 - Thanks for the answer.

Thanks,

_Prashant_
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BusbarCommented:
2- VLANs are defined at the network layer, you have 2 options, either setting the VLAN tagging on the network card inside the VM, or settings the VLAN tagging at the port group (which is the recommended way).

3- go to networking section there is a map (or it might be a different name didn't get my coffee yet). just look it up.

Mahmoud
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Prashant GirennavarAuthor Commented:
Seems I have not my questions properly. Apologies.......

Let me explain it another way.

Question 2 ). I am aware that VLAN's are defined at layer 3 and I have option to define it inside the VM or setting the VLAN tag at the port group. My question is how this VLAN's are getting populated when I try to define a new port group. In other words how to define this VLAN for port group?

 I think below screenshot will help

Vmware Vlan
Question 3 . I am really sorry I did not get any option in there. I spent an hour it , still I can not make it. Can you please give a screenshot or instruction where I can look for it?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Using ESXi there is no Service Console port anymore, because there is no Service Console.

This has been replaced by the Management Network Portgroup.

VLANs

You have to manually set the Tag, to a Number! Then make sure this number corresponds to the numbers you have configured on your physical switch.

ESXi does not automatically fill in the Tag Numbers.

Have a look here

Pages 13 - 73 Discuss Networking in Detail, iuncluding trunks, VLANs, switches, and load balancing

ESXi Configuration Guide ESXi 4.1
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_esxi_server_config.pdf

Virtual Networking
http://www.vmware.com/technical-resources/virtual-networking/virtual-networks.html

Virtual Networking Concepts
http://www.vmware.com/files/pdf/virtual_networking_concepts.pdf
http://en.wikipedia.org/wiki/Virtual_LAN

http://en.wikipedia.org/wiki/IEEE_802.1Q
Sample configuration of virtual switch VLAN tagging (VST Mode)

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004074

http://blog.scottlowe.org/2006/04/17/vlans-and-port-groups/

How to Setup VLANs
http://www.vladan.fr/great-kb-on-how-to-configure-vlans-on-vswitches-pswitches-and-vms/

VMware ESX Server 3: 802.1Q VLAN Solutions
http://www.vmware.com/pdf/esx3_vlan_wp.pdf
http://kb.vmware.com/kb/1004127
http://kb.vmware.com/kb/1004074
http://kb.vmware.com/kb/1004252
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Prashant GirennavarAuthor Commented:
Thanks for that hanccocka,

 Now,

 Question 4 ) Is it possible to view on which port of the port and Virtual machine is connected?

 Say For eg - I have a port group in vSwitch 0 , and I have 10 VM's in it. So is it possible to know on which port of vSwitch 0 all my 10 VM's are connected?

Thanks,

_Prashant_
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BusbarCommented:
why would you care about that ?!
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Prashant GirennavarAuthor Commented:
I don't know.

  It suddenly came to my mind.....I thought there would be some method to find it out....

  I am sure there should be some method to find it out or I am expecting too much here?

Thanks,

_Prashant_
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BusbarCommented:
you won't need to know which port, the only thing you want to know is the VM and to which PG it is connected to.
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Prashant GirennavarAuthor Commented:
Great Answers!!!! I respect your Knowledge....

Thanks,

_Prashant_
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BusbarCommented:
you are welcome
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