Support for Rate-Limit RADIUS Attributes in the PPPoE Server

As of LCOS 10.94, the PPPoE server supports the vendor-specific RADIUS attributes LCS-TxRateLimit and LCS-RxRateLimit with the vendor ID 2356 (LANCOM Systems GmbH) in the RADIUS Access-Accept. This allows upload and download bandwidths of a PPPoE client to be limited at Layer 2. This function is only supported when the PPPoE client is connected via LAN interfaces. It is not supported when the PPPoE client is connected through Layer-2 tunnel interfaces such as Ethernet-over-GRE (EoGRE) or L2TPv3.

Table 1. Vendor-specific RADIUS Attributes in the Access-Request
ID:	Name	Meaning	Possible values in LCOS
8	LCS-TxRateLimit, Vendor 2356	Defines a maximum downstream rate in kbps on Layer 2 from the perspective of the PPPoE server (NAS) toward the PPPoE client.
9	LCS-RxRateLimit, Vendor 2356	Defines a maximum upstream rate in kbps on Layer 2 from the perspective of the PPPoE server (NAS) coming from the PPPoE client.