The Ubiquoss ATM-IP Tunneling System is an all-IP interim solution that provides an interface between IP and ATM. The ATM-IP Tunneling System is a data transmission platform enabling effective high-speed data communication via an Ethernet-based IP network Interface over the 1xEV-DO Mobile Service. The 1xEV-DO Mobile Service is a type of wireless access technology developed from the CDMA2000 1x service and suitable for Video-on-Demand service requiring high-speed (up to 2.4Mbps) and high capacity downloading.

For interfacing between the 1xEV-DO system and an IP Network, the ATM-IP System provides IP interface connected to an xDSL or Metro Ethernet network and an ATM leased line interface. The ATM-IP System enables a mobile service provider to reduce the leased line cost and guarantees the same quality as a legacy interface without the legacy interface modification.

ㆍActive/Standby Redundancy guarantees system reliability
ㆍHot Swappable Function Support for Service Contiuability
ㆍQuick and comfortable system set-up
ㆍAdministrator-friendly operation management environment
ㆍNetwork Security/Protection Function

ATM-IP includes both a Client and Master System.

The ATM-IP Master System can manage and interwork with up to 32 Client Systems by interfacing with an ATM Line.

The Master System consists of the following modules:
MSMB (Main System Management Board) for System Management & Operation
NIB (Network Interface Board) for IP Network Interface
AIB (ATM EI Interface Board) for ATM E1 Interface
FAN Module
Power Supply Module

The ATM-IP Client System provides high-speed data transmission service from the ATM E1 Interface Access Point (AP) by networking with the ATM-IP Master system via an xDSL network.

The ATM-IP Client System consists of a box-type standalone system and supports Ethernet interface (redundancy) for xDSL modem connections and ATM E1 Interface for AP connections. From an xDSL interface, the Client System connects to the ATM-IP Master System.

To improve reliability, the system’s Ethernet interface is designed on Active/Active redundant architecture. In addition, the ATM-IP Client System can be assigned via PPP or DHCP, and all of 2 Ethernet interfaces can receive IP assignments. Therefore, in the case of one Ethernet port failing, service interruption (and prompt provisioning) is minimized due to the xDSL Interface (redundancy) architecture.

1.ATM-IP Master System

MSMB Operation & management Module
ㆍ UPBO (Upstream Power Back-off)
ㆍ Rate adaptive (1Mbps Step)
ㆍ Slow channel
ㆍ Optional Band
ㆍ 52M VDSL Line Interface (Asymmetric)
ㆍ 26M VDSL Line Interface (Symmetric)

NIB Ethernet Interface Module
ㆍ Public-IP connection like a Metro-Ethernet
ㆍ Active/Standby Redundant Architecture for system reliability guarantee
ㆍ Hot Swappable Function Support (Service Contiuability Guarantee in case of inserting/deleting the MSMB board)
ㆍ Point to point interface with MSMB & AIB Board
ㆍ 10/100Base-TX(full-duplex) Ethernet Interface
ㆍ System IP

AIB ATM E1 Interface Module
ㆍ ATM E1 Interface for Access Point controller (APC) connection
ㆍ Each AIB Board has 1 ATM E1 Interface
ㆍ One Master system can adopt up to 32 ATM E1 interface modules
ㆍ Point to Point interface with Client system
ㆍ Point to Point Interface with NIB board

Stable hardware-based Wire-speed Switching
ㆍ Layer 4 based hardware switching function
ㆍ Point to Point connection with AIB board (ATM E1 interface module)

Reliable Network Security/Protection Function
ㆍ For preventing Illegal system access and operation management, the user with specific IP address canbe accessed.
ㆍ Permitted UDP port in each AIB board for system access block and security to user traffic

Quick and comfortable system environment setting up and operation
ㆍ Cold booting procedures can be done within 1 minute and process normal execution of initial operation function
ㆍ Easy to upgrade system software through TFTP server and flash file system
ㆍ Software configuration setting up can be possible while operating the system for service continuously

Administrator-friendly operation management environment
ㆍ Easy-to-use CLI interface
ㆍ GUI-based element management for remote system management
ㆍ Local or remote management through telnet connection
ㆍ Sys log function support for reliable operation, management, and diagnostics
ㆍ SNMP I, II agent and RMON support

2. ATM-IP Client System

User interface via console port

Ethernet interface with xDSL modem

Active/Active Redundant Architecture Ethernet interface

ATM E1 Interface for AP Connection

Network Security/Protection function
ㆍ Only access from a specific IP address is permitted for protection of the system from unauthorized accesses(Access List)Access control per subscriber traffic by

permitted UDP port

Quick and comfortable system environment setting up and operation
ㆍ Cold booting procedures can be done within 1 minute and process normal execution of initial operation function
ㆍ Easy to upgrade system software through TFTP server and flash file system
ㆍ Administrator-friendly operation management environment
ㆍ Easy-to-use CLI interface
ㆍ GUI-based element management for remote system management
ㆍ Local or remote management through telnet connection
ㆍ Sys log function support for reliable operation, management, and diagnostics