07-19-2013 02:56 PM - edited 03-01-2019 11:09 AM
We have a seperate physical network for our DMZ and a seperate physical network for some other isolated hosts. Most of these machines in the two environments are virtual machines residing on 2U rack server machines running ESXi. We are getting some UCS to replace these rack servers. We'll have one set of fabric interconnects (6296's) and a couple chassis's with blades for ESXi. My question is can I take uplink ehternet ports and connect them to the two different network environments. For example, could I take ports 37 and 38 on both interconnects and connect them to the switches in our DMZ network and port 39 and 40 on both interconnects and connect them to swithces on the other network. Would I be able to setup the ESXi server to connect to vlan's in both of the seperate networks as long as the trunks have the vlans on them?
07-19-2013 04:32 PM
You're talking about Disjoint Layer 2 Uplinks - and Yes, UCS is perfectly adapted to support this. You will use the Uplink Manager to assign certain VLANs to certain uplinks (DMZ VLANS to only DMZ uplinks etc).
Each vNIC you present to your service profiles/hosts can only be pinned to one uplink set - so if you have a single or set of DMZ VLANs, they would need to be assigned to a single vNIC within your service profile. You can still have non-DMZ VLANs accessed by the same host, as long as they're assigned to a separate vNIC.
Ex. ESX-Service-Profile
vNIC0 - Managment VLANs
vNIC1 - VMotion VLANs
vNIC2 - DMZ VLANs
vNIC3 - Prod VLANs
Each vNIC defined in the service profile can have multiple tagged VLANs assigned, but just adhere to the requirement that if you have disjoint L2 networks upstream, all those VLANs must be assigned to the same vNIC.
Have a read through this guide we put together:
https://supportforums.cisco.com/docs/DOC-21856
Regards,
Robert
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