D-Link DAS-3224 User Manual

 
 

                                                                 

 

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Figure 0-2 PPPoE application in DAS-3248/3224 with Ethernet-All-The-Way 

Network 

In addition to traditional ATM-based ADSL network. As Fig 0-2 displays, 

the user application information is still encapsulated by ADSL CPE into 

ATM cells in pre-defined VC (Virtual Channel, PVC), and then upstream 

the ATM cells to DSLAM via ADSL link.   

In the DAS-3248/3224, all the ATM cells belong to the specified VC are 

decapsulated back to the original PPPoE encapsulated Ethernet packet (if 

VLAN-mode of the specified ADSL port is disabled), or mapped to the 

pre-defined Ethernet-VLAN packets (if VLAN-mode of the specified ADSL 

port is enabled). DAS-3248/3224 concentrates all Ethernet-with/without 

VLAN-tag packets from 48/24 ports’ ADSL and uplinks to ISP’s 

Ethernet-All-The-Way network. The PPPoE frames will be resolved at 

Broadband Access Server (BAS), and the user application information was 

serviced. 

The DAS-3248/3224 supports ADSL CPE Bridge-mode. For future FW 

upgrade, the DAS-3248/3224 can act as BRAS to process user application 

information directly.   

DAS-3248/3224 provides Ethernet-with/without VLAN tag to ATM-PVC 

mapping feature for the ISP to isolate user’s data with security and to