There are three levels of rate-limiting that is supported on the ePMP1000-Hotspot, E400 and E500 access points:
1. The traffic from/to each client on a SSID can be rate-limited in either direction by configuring usage-limits inside the WLAN Configuration. This is useful in deployments like public hotspots where the backhaul is limited and the network administrator would like to ensure that one client does not monopolize all available bandwidth.
2. All upstream/downstream traffic on an SSID (aggregated across all wireless clients) can be rate-limited in either direction by configuring usage-limits inside the WLAN Configuration section of the GUI. This is useful in cases where multiple SSIDs are being used and say one is for corporate use, and another for guests. The network administrator can ensure that the guest VLAN traffic is always throttled, so it wont affect the corporate wlan.
The configuration of both of these is shown in the GUI screenshot below:
3. When RADIUS is used for authenticating clients, the AP will honor any WISPr Rate Limiting RADIUS attributes in the Access-Accept message at the end of the authentication. This works for both Guest/Captive-Portal authentication as well EAP/802.1x RADIUS authentication. The administrator this has the flexiblity to enforce rate limit only to a particular client, based on the username/password or some other such attribute (policy defined on the RADIUS server).
The WISPr attributes for this (defined in RADIUS dictionary files, and subsequently for the users policy) are:
VENDOR WISPr 14122 ATTRIBUTE WISPr-Bandwidth-Max-Up 7 integer ATTRIBUTE WISPr-Bandwidth-Max-Down 8 integer