The OneAccess 1611 is a smart Ethernet service demarcation designed to be placed at the border of the new carrier Ethernet networks. It offers a cost efaEthernet network. The OneAccess 1611 embeds carrier grade features as Ethernet OAM, QoS and services management allowing carrier to guarantee customers SLAs. Using pluggable (SFP) optical modules with inventory and diagnosis features OneAccess 1611 can easily fit to any kind of fibre, any range, and any wavelength. The OneAccess 1611 as the first member of OneAccess 16xx Optical Ethernet demarcation product line is the perfect choice for carrier Ethernet network. .

CARRIER GRADE DEMARCATION
The development of the Ethernet into the carrier’s domain enables carriers to replace legacy network architecture based on TDM and ATM. Taking benefits of low cost and flexibility of Ethernet technology, they are able to deliver legacy services and to develop new services thru an unified way. One of the key elements of this new carrier access network architecture is the Ethernet service demarcation. The Ethernet demarcation is an Ethernet Access Device placed at the endpoint of the carrier access network acting as administrative and physical border between the carrier and its customers. To cope with carrier-grade requirements as services management, QoS and guaranteed of customer SLA, dedicated and specific Ethernet devices are required. The OneAccess 1611 is the answer to the carrier requirements. The OneAccess 1611 embeds a VLAN aware Ethernet bridge that complies with the 802.1Q and 802.1ad standards working at Fast and Gigabit speed. It provides on network side a 100 Base X or 1000 Base X uplink port and a 10/100 Base T, 1000 Base T or 1000 Base X port on the user side. The OneAccess 1611 handles multi services (multi Ethernet Virtual Connection) on the user port. This means per service classification, QoS, bandwidth control and OAM.

OAM ETHERNET
One of the keys for carrier Ethernet deployment is OAM Ethernet. The deployment of Ethernet in the access is required for end to end monitoring. This includes performance monitoring, connectivity, continuity check and fault management.
To address these points the OneAccess 1611 implements the new Ethernet OAM standards.
The OneAccess 1611 acts as an OAM end point (MEP). A group of OneAccess 1611 is associated to a maintenance entity (MEG) and with a MEP identifier (MEP ID). The MEP ID can be provisioned or discovered automatically.
Automatic discovery makes simple entry of a new demarcation in a MEG while saving OpEx. When a OneAccess 1611 is connected to the network it is automatically discovered by other OneAccess 16xx without need to configure remote MEP ID or remote MAC address.
A continuity check is performed per EVC and per CoS notifying a loss of continuity when a customer service is interrupted.
SLA measurement can be triggered per service measuring end to end frame loss, latency and jitter. Thresholds for measurement can be set to notify the management when one of the parameters crosses the threshold. Measured values are accumulated by period of 15 minutes, hours and days and readable remotely.

SERVICES MANAGEMENT
Ethernet carriers are no more selling access port but layer 2 services. In such way the OneAccess 1611 user port supports bundling, meaning than one or more customer services can be mapped with an Ethernet virtual connection into the carrier Ethernet network (EVC). The customer service can be mapped according to customer port or VLAN.
The OneAccess 1611 provides per service enhanced flow classification. Customer flows can be classified at layer 2 (802.1p) or at layer 3 (DSCP). The customer priority can be mapped to the provider priority allowing so to associate the customer CoS to a provider network priority (802.1p) .