Users Guide
181 | Network Configuration Parameters Dell Networking W-Series ArubaOS 6.4.x| User Guide
8. The controller boots up with the changed controller IP address. of the selected VLAN ID.
In the CLI
(host)(config) #controller-ip [loopback|vlan <valn id>]
Configuring GRE Tunnels
Controllers support Generic Routing Encapsulation (GRE) tunnels between controllers and between controllers
and other network devices that support GRE tunnels.
This section contains the following information:
l About Layer-2 GRE Tunnels
l About Layer-3 GRE Tunnels
l Configuring a Layer-2 GRE Tunnel
l Configuring a Layer-3 GRE Tunnel for IPv4
l Configuring a Layer-3 GRE Tunnel for IPv6
l Directing Traffic into the Tunnel
About Layer-2 GRE Tunnels
Layer-2 GRE tunnels allow you to have the same VLAN in multiple locations (separated by a Layer-3 network)
and be connected. The forwarding method for a Layer-2 GRE tunnel is bridging.
However, the drawback of using Layer-2 GRE tunnels is that all broadcasts are flooded through the tunnel,
adding traffic load to the network and the controllers.
Layer-2 GRE Tunnel Network Diagram
Figure 19 Layer-2 GRETunnel
Layer-2 Traffic Flow
The traffic flow illustrated by Figure 19 is as follows:
1. The frame enters the source controller (Controller-1) on VLAN 101.