What kind of bandwidth can I expect and what are reasonable shaping speeds?
The following tables shows some of the rates used on a regular basis with 2.4 Ghz links and their bandwidth usage. If you're running 900 Mhz or 5 Ghz backhaul links with dual-radio nodes, you will typically want to set the max wireless client bandwidth to around 6 Mb/s rather than around 2-3 for 2.4 Ghz, and the maximum system bandwidth to 20 Mbs rather thn 10 Mbs..

You can use the program qlink_test from a SSH terminal to determine the speed of your connection between nodes. If you use "qlink_test 1.x.x.x " you will see the max tcp/ip speed between the node you're in, and the one you've specified. If you use "qlink_test 172.x.x.x" you will see the speed available through the client tunnel, which is generally equivalent to the speed your customer will experience. These numbers include the TCP/IP protocol overhead.  Actual customer bandwidth will be between 5-10% less than these values.

Actual bandwidth performances also depends upon many variables including not only your system shaping settings but also the radio link quality and other user load on the system.
data rate bandwidth
11 mb/s 1.375 MB/s
10 mb/s 1.250 MB/s
5 mb/s 625 KB/s
3 mb/s 375 KB/s
2 mb/s 250 KB/s
1 mb/s 125 KB/s
512 kb/s 64 KB/s
256 kb/s 32 KB/s
128 kb/s 16 KB/s

 

The recommended default settings for bandwidth shaping are:

data rate bandwidth
Maximum Wired 10 mb/s
Maximum Wireless 3 mb/s
Owner Class 3 mb/s
Member Class 2 mb/s
Public Class 1 mb/s
Unknown Class 128 kb/s
VoIP Class 512 kb/s