diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/doc/README.VLAN | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/doc/README.VLAN')
| -rw-r--r-- | qemu/roms/u-boot/doc/README.VLAN | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/doc/README.VLAN b/qemu/roms/u-boot/doc/README.VLAN new file mode 100644 index 000000000..4f86d55ea --- /dev/null +++ b/qemu/roms/u-boot/doc/README.VLAN @@ -0,0 +1,15 @@ +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. |