Another post, this time about the basic OTV configuration on a Nexus 7000.
The OTV configuration has the be made on a different switch (or VDC) where no SVI’s are configured for the VLAN’s you want to extend to the other site.
First of all some terminology:
- Edge device: This device performs layer 2 activities (to the internal network) and OTV transportation to the other site(s).
- Transport network: This is the network (can be layer 3) that connects all the sites. This is your WAN connection, possible managed by your service provider.
- Join interface: This is the uplink interface on the edge device that is connected to the transport network.
- Internal interface: This is the interface on the edge device that is connected to the internal network.
- Overlay interface: This is a logical interface, with support for multi access, multicast. This interface encapsulates layer 2 frames in IP headers (also ‘MAC routing’)
- Overlay network: A logical network that connects all sites together and uses MAC routing for interconnecting the sites.
- Site: Your (layer 2) network on a location. In most cases, this is one of your datacenters.