A few weeks ago at geek week, I was assigned the task of getting the Cisco Nexus 1000v distributed virtual switch set up. I probably spent a good 4 hours on my first cluster because I had no clue what was going on and I ended up losing my management network and spent lots of time restoring my network to the original vSwitch. I followed TrainSignal's 1000v Installation training in Pro Series Vol. 1 but the Nexus 10000v setup has changed a bit since then. It has actually gotten much easier. After finding a few walk throughs and talking to rock star Jason Nash, I was able to setup my 2nd cluster in less than 10 minutes. I'll show you the easiest step by step instructions I can possibly do.
There are a few prerequisites to understand before we get started.
- VSM = Virtual Supervisor Module which is the "brains" or the engine on a Cisco switch. This is an .ovf that is deployed as a VM into our cluster. We are going to setup 2 of these for HA purposes
- VEM = Virtual Ethernet Module will be installed on the ESXi hosts through Update Manager.
- Packet VLAN = Used for communication between the VSM and the VEMs within a switch domain by protocols such as CDP, LACP, and IGMP. Cisco recommends keeping this on it's own separate VLAN, but I would put Packet and Control on the same L2 VLAN.
- Control VLAN = Used to send VSM configuration commands to each VEM, VEM notifications to the VSM, and NetFlow exports. Cisco recommends keeping this on it's own separate VLAN, but I would put Packet and Control on the same L2 VLAN.
- Management VLAN = The management interface is not used to exchange data between the VSM and VEM, it is used to establish and maintain the connection between the VSM and VMware vCenter Server. Needs to be on a routable VLAN that can communicate with the vCenter Server.
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