Planet-technology IP DSLAM IDL-4801 Bedienungsanleitung PDF herunterladen (Seite 707)

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IP DSLAM

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In addition to traditional ATM-based ADSL network. As above Figure 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 IP DSLAM, 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). IP DSLAM concentrates all Ethernet-with/without

VLAN-tag packets from 24/48 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 IP DSLAM supports ADSL CPE Bridge-mode. For future FW upgrade, the IP DSLAM

can act as BRAS to process user application information directly.

IP DSLAM provides Ethernet-with/without VLAN tag to ATM-PVC mapping feature for the

ISP to isolate user’s data with security and to provide lots of service enhancement

capabilities. IP DSLAM supports 8 ATM PVC links for each CPE.

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