| U-Boot has networking support for VLANs (802.1q), and CDP (Cisco |
| Discovery Protocol). |
| |
| You control the sending/receiving of VLAN tagged packets with the |
| "vlan" environmental variable. When not present no tagging is |
| performed. |
| |
| CDP is used mainly to discover your device VLAN(s) when connected to |
| a Cisco switch. |
| |
| Note: In order to enable CDP support a small change is needed in the |
| networking driver. You have to enable reception of the |
| 01:00:0c:cc:cc:cc MAC address which is a multicast address. |
| |
| Various defines control CDP; see the README section. |
