Adding a new forest\domain network in vCenter

Hi,

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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Indie101Asked:
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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:
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
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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?
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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
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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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