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access-line-information (L2TP)


Hierarchy Level


Configure a LAC to forward subscriber line identification and other DSL attributes in ICRQ messages to the LNS by means of L2TP AVPs for all tunnels to all LNSs or for only tunnels with the specified endpoint for a particular LNS. Optionally, configure the LAC to send initial line rates in ICCN messages and subsequent rate updates in CSUN messages.

Configure an LNS to process such line information for all tunnels from all LACs or for only tunnels with the specified endpoint for a particular LAC. Optionally, configure the LNS to process rate updates received in CSUN messages from the LAC.

Including this statement at the [edit services l2tp destination ip-address] hierarchy level is useful when you know that some endpoints in the network do not support this feature or have an incorrect implementation. Configuring at this level enables you to restrict the transmission or processing of this information to only LACs and LNSs, respectively, that you know support the feature.

This statement has no effect on existing subscribers; it applies only to new subscribers.



(Optional) On the LAC, include the Connect Speed Update Enable AVP (98) in ICCN messages from the LAC to alert the LNS that the LAC might send CSUN messages that report speed changes originating with the ANCP agent.

On the LNS, enable processing of CSUN updates. If this option is not configured on the LNS, CSUN updates cannot be processed even when the Connect Speed Update Enable AVP (98) is received from the LAC. In that case, only rates received in AVP 24 (Tx speed) and AVP 38 (Rx speed) in ICCN messages can be applied.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 14.1.

Support at the [edit services l2tp] hierarchy level introduced in Junos OS Release 14.2.

Support for the LNS introduced in Junos OS Release 17.4R1 on MX Series routers.