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6620-3201
4.19 Confi gure
>
DSL
>
ATM PVCs
>
PVC n
Products incorporating a DSL broadband interface will include a con
fi
guration page entitled
Confi gure
>
DSL
>
ATM PVCs
. This is turn will contain one ATM PVC sub-page for each ATM PVC
supported. These pages are used to con
fi
gure Asynchronous Transfer Mode PVC’s which are used to
carry AAL5 (ATM Adaption Layer 5) packet data and OAM cells over the ADSL interface. ATM traf
fi
c is
transported using the UBR (Unspeci
fi
ed Bit Rate) service.
Using the Web Page(s)
Enabled:
This parameter determines whether this APVC is enabled (“Yes”) or disabled (“No”).
Encapsulation:
This parameter is used to select the method of encapsulation to be used when transporting data
over this APVC. The appropriate value can be selected from a drop list which includes the following
options:
Option Description
PPPoA VC-Mux
RFC 2364 VC-multiplexed PPP over AAL5
PPPoA LLC
RFC 2364 LLC encapsulated PPP over AAL5
PPPoE VC-Mux
RFC 2516 VC-multiplexed PPP over Ethernet
PPPoE LLC
RFC 2516 LLC encapsulated PPP over Ethernet
Bridged Ethernet VC-Mux
RFC 2684 VC-multiplexed bridged Ethernet
Bridged Ethernet LLC
RFC 2684 LLC encapsulated bridged Ethernet
To use PPPoA or PPPoE encapsulation, one of the available PPP instances must
fi
rst be con
fi
gured
to use this APVC instance as it’s Layer 1 interface on the associated
Confi gure
>
PPP
>
Advanced
page.
Bridged Ports:
These checkboxes are used to specify which, if any, of the Ethernet ports are to be attached to the
Ethernet/ADSL bridge. To use the bridge, an ATM PVC must be con
fi
gured with bridged Ethernet
encapsulation (so the checkboxes will be greyed out if a non-bridge encapsulation is selected).
VPI:
This parameter is used to set the Virtual Path Identi
fi
er for this APVC in the range 0 - 255.
VCI:
This parameter is used to set the Virtual Channel Identi
fi
er for this APVC in the range 0 - 65535.
ATM PVC analysis:
This parameter is used to include or exclude data from this APVC in the analyser trace and setting it
to On is equivalent to checking the corresponding ATM PVC sources checkbox on the
Confi gure
>
Analyser
page.