Ericsson EDA manual Shared DSL Solution

The Shared DSL Solution

The concept of the Shared DSL is using one DSL line inside the Primary Access Provider network, terminating the line with a Customer Premises Equipment (CPE) modem that converts the DSL to Ethernet. The Ethernet is then converted again to DSL by the IP DSLAM to make the DSL connection to the End-users (this part belongs to the secondary Access Provider). The concept does not call for any specific equipment in the Primary Access Provider network, except that it is able to separate and isolate the data channels coming from the Shared DSL remote site: End- user data and Management data.

The Concept allows for one type of Quality of Service for both End-users and management traffic. The limiting factor is the capability of the CPE modem in the remote site to prioritize traffic. Both types of traffic are therefore best effort.

The End-user traffic is directed towards public data network (Internet) from the Router or BRAS of the Primary Access Provider. The Management traffic is directed toward the EDA network (Access Domain).

The Shared DSL solution requires that the used CPE Modem has the capabilities of mapping between Ethernet VLANs and ATM Permanent Virtual Circuits (PVCs).

The Shared DSL Solution supports DHCP option82 (please refer to System Description for details about the DHCP relay agent in the EDA).

The Shared DSL solution does not support EDA Dynamic Management

VLAN concept (DMV).1

1The DMV is a solution for using a different management VLAN (not 246) in the EDA network, with automatic adaptation of the IP DSLAMs to the management VLAN.

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