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- 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.
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