Fri Jun 17, 2005 9:25 pm
WDS is lighter weight than EoIP, so you should get better throughput with WDS.
WDS only cuts the bandwidth in half if you are using it as a "repeater", i.e. the packets need to egress via the same physical radio they came in on.
All WDS really does, is to expand the 802.11 header a little bit, by adding a few extra fields to carry the actual source and destination MAC addresses (and a few other flags and such) in addition to the BSSID MACs (thus making transparent bridging possable). This does cut the potential bandwidth by a bit, but not much.
EoIP re-encapsulates the entire ethernet frame inside an IP packet, so you would be adding two complete headers to each packet.
With straight 802.11 you have: IP over 802.11
With WDS you have: IP over "chubby" 802.11
With EoIP you have: IP over Ethernet over IP over 802.11.
--Eric