User`s manual
5620 Model Descriptor for LA-110 User’s Manual Chapter 4 Port Configuration and Monitoring
SHDSL Port Configuration 4-35
Figure 4-27. Ethernet Bridge Port Parameters
2. In the Physical Port field, select the physical port (ETH or ATM).
3. Click <Save> to save the changes.
4.7 SHDSL Port Configuration
LA-110 has one WAN (uplink) port, used to connect to the ATM network (this port
is often referred to as an uplink port). Although the LA-110 uplink can come in
several forms, in the current MD version, the WAN port will be always a 2-wire
SHDSL interface in accordance with ITU-T Rec. G.991.2. The ATM network
interface provides an ATM user-network interface (UNI) per ATM User-Network
Interface (UNI) Specification (Version 3.1).
The interface supports the following ATM adaptation layers:
• AAL1: used for transparent transport of serial data streams, and for circuit
emulation services (CES)
• AAL2: used to provide ATM Forum Loop Emulation Services (LES), which
support PSTN and ISDN BRI and PRI access not supported
• AAL5: used for packet traffic (Frame Relay, Ethernet, IP).
The network port supports a wide range of ATM service categories (Classes of
Service–CoS in ITU-T terminology): CBR, VBR, UBR and UBR+. LA-110 supports
per-connection user-configurable traffic shaping and traffic contract enforcing, for
improved QoS and efficient utilization of the ATM uplink bandwidth.
The layers of the SHDSL port include physical and ATM.
Basic tasks include:
• Configuring the SHDSL port physical layer
• Configuring the SHDSL port ATM layer.