Adding a new forest\domain network in vCenter


Looking to add a completely separate forest then domain in vCenter where I am contracting

Looking to ask this as where I am they have a consultancy company who support our infrastructure and any changes go through them etc,

We don't use distributed switches, so I'm looking to add a new virtual standard switch, with port group and uplink to that subnet

We have five esxi hosts and 120 vms, its quite a small environment

If someone could outline in steps, best practice for this would be a huge help in dealing with the consultancy company etc,

I'm trying to clean up the number of vlans we currently have etc
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Indie101Author Commented:
From what i have seen, i just need to add a port group to existing standard switches, there is a vlan setup for it already

Do this for each host as there are standard, anything else to look out for

Existing subnets are all 192.168.x.x this would be 172.21.65.x

I just realised as we don't use static ips, (reservations in DHCP) so have to create a scope for this
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If the new forest/domain is on a different network, then you just need to add networking to existing hosts, to be able to communicate on that network.

It could be done with a VLAN or Physical Network interfaces.

If you want to communicate between 192.168.x.x and 172.21.65.x you would need inter-vlan routing or a router, because ESXi provides no routing.

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Indie101Author Commented:
Thanks Andrew the domain will be completely separate, completely different security boundary etc

So no need for communication between the two, so thanks for that.... :)

My preferred option would be to use vlan but I've been told that theres been issues with that subnet before, for adding it to a physical nic, what is the best way, just to do it for each host, add the uplinks there?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
new vSwitch with two physical uplinks (nics) for resilience, both active\active or what every arrangement works for your networking
Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
I would follow andrews advice , I would watch out for your default gateway routing between vlans unbeknownst to you.
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