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    DSL Forum Vendor-Specific Attributes

    Digital Subscriber Line (DSL) attributes are RADIUS vendor-specific attributes (VSAs) that are defined by the DSL Forum. The attributes transport DSL information that is not supported by standard RADIUS attributes and which convey information about the associated DSL subscriber and data rate. The attributes are defined in RFC 4679, DSL Forum Vendor-Specific RADIUS Attributes.

    Note: Junos OS uses the vendor ID 3561, which is assigned by the Internet Assigned Numbers Authority (IANA), for the DSL Forum VSAs.

    Subscriber management does not process DSL values—the router simply passes the values received from the subscriber to the RADIUS server, without performing any parsing or manipulation. However, you can manage the content of DSL VSA values either by using the client configuration to restrict the DSL VSAs that the client sends, or by configuring the RADIUS server to ignore unwanted DSL VSAs.

    Table 1 describes the DSL Forum VSAs.

    Table 1: DSL Forum VSAs

    Attribute Number

    Attribute Name

    Description

    Value

    [26-1]

    Agent-Circuit-Id

    Identifier for the subscriber agent circuit ID that corresponds to the DSLAM interface from which subscriber requests are initiated

    string

    [26-2]

    Agent-Remote-Id

    Unique identifier for the subscriber associated with the DSLAM interface from which requests are initiated

    string

    [26-129]

    Actual-Data-Rate-
    Upstream

    Actual upstream data rate of the subscriber’s synchronized DSL link

    integer: 4-octet

    [26-130]

    Actual-Data-Rate-
    Downstream

    Actual downstream data rate of the subscriber’s synchronized DSL link

    integer: 4-octet

    [26-131]

    Minimum-Data-Rate-
    Upstream

    Minimum upstream data rate configured for the subscriber

    integer: 4-octet

    [26-132]

    Minimum-Data-Rate-
    Downstream

    Minimum downstream data rate configured for the subscriber

    integer: 4-octet

    [26-133]

    Attainable-Data-Rate-
    Upstream

    Upstream data rate that the subscriber can attain

    integer: 4-octet

    [26-134]

    Attainable-Data-Rate-
    Downstream

    Downstream data rate that the subscriber can attain

    integer: 4-octet

    [26-135]

    Maximum-Data-Rate-
    Upstream

    Maximum upstream data rate configured for the subscriber

    integer: 4-octet

    [26-136]

    Maximum-Data-Rate-
    Downstream

    Maximum downstream data rate configured for the subscriber

    integer: 4-octet

    [26-137]

    Minimum-Data-Rate-
    Upstream-Low-Power

    Minimum upstream data rate in low power state configured for the subscriber

    integer: 4-octet

    [26-138]

    Minimum-Data-Rate-
    Downstream-Low-Power

    Minimum downstream data rate in low power state configured for the subscriber

    integer: 4-octet

    [26-139]

    Maximum-Interleaving-
    Delay-Upstream

    Maximum one-way upstream interleaving delay configured for the subscriber

    integer: 4-octet

    [26-140]

    Actual-Interleaving-
    Delay-Upstream

    Subscriber’s actual one-way upstream interleaving delay

    integer: 4-octet

    [26-141]

    Maximum-Interleaving-
    Delay-Downstream

    Maximum one-way downstream interleaving delay configured for the subscriber

    integer: 4-octet

    [26-142]

    Actual-Interleaving-
    Delay-Downstream

    Subscriber’s actual one-way downstream interleaving delay

    integer: 4-octet

    [26-144]

    Access-Loop-
    Encapsulation

    Encapsulation used by the subscriber associated with the DSLAM interface from which requests are initiated

    string: 3-byte

    [26-254]

    IWF-Session

    Indication that the interworking function (IWF) has been performed for the subscriber’s session

    No data field required

    Published: 2013-02-11