DSL line attributes support for L2TP LNS

Junos OS configured as an LNS can process subscriber access line information that it receives from the LAC. This information includes access line attributes conveyed in ICRQ messages, initial Tx/Rx connect speeds (AVP 24/38) in ICCN messages, and connect speed updates in CSUN messages. The rate information enables CoS shaping on the subscriber session to be more accurate, but updates are subject to CoS adjustment control profiles. You can configure processing for information received from all LACs, or for only LACs you specify by address.