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Distributed Virtual Switch Questions

I have couple of questions related to dvSwitch . I am trying to understand the concepts of dvSwitch now

1. I have understood the the Port Groups in dvSwitch , However I am unable to understand dvUplinks , ? WHat are these? dvUplink = Physical network adapter or its different? I can see , If I have 3 Esxi host with 2 Free Network adapter in them ., the all are distributed among dvUplink1 and dvUplink2 , Rest of the dvUplinks (3 and 4) are empty? Can some one explain me this?

2.How the FT will work in dvSwitch?

3. When We create a new dvSwitch , it creates 2 components 1. dvSwitch 2. dvPortGroup ,

what we can accomplish using dvSwitch and dvPortGroup?

4. What are the best practices to confiugre dvSwitch to avoid disasters?

Thanks,

_Prashant_
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Prashant Girennavar
Asked:
Prashant Girennavar
1 Solution
 
Vaseem MohammedCommented:
Hi Prashant,

How I understand these concept.
1. dvUplink: group of network card, You have 3 hosts, each with 2 NICs. what will happen is dvUplink 1(group 1) will have 1st NIC from each host..
dvUplink 2(group 2) will have 2nd NIC from each host..
If you see now you have utilized both NICs from 2 hosts, ops where is 3rd hosts? might be possible you didn't add it yet in dvSwitch.
dvUplink 3, and 4 is empty coz you have no more nics to put them in these groups.

2 FT in dvSwitch:
If you mean to say how dvSwitch helps you in case of host failure.
dvSwitch is like a seamless configuration of network in every Host.
I know its a bit tricky to understand, u draw 3 hosts and a line across these hosts.. this line is ur vds or dvswitch.. the configuration that you do is present on every host. so in case any host goes down and you have HA configured, the vms will move to diff host and keeps running.

3. dvSwitch and PortGroups:
consider dvSwitch as a physical switch and portgroups as the name says, group of ports on that switch.
E.g., PortGroup_Priv_Network.

4. best practices.
there is no hard and fast rule that the config should be like this and that.
What I did is configured 1 dvSwitch with 1 Portgroup for live network, 3 portgroups for private network (which does not communicate with live network) connected these 3 port groups to a router (virtual-router with 3 nics) and I can make scenarios like ISP-Network, Corp-A-Network, Corp-B-Network.

The best way to digest this virtual networking salad is to take each concept at a time.. else you will have a new salad in brain. :-P
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Prashant GirennavarAuthor Commented:
Thanks Wasim,

That was good explanation.

Regards,

-Prashant Girennavar.
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