Specifications

Chapter 1 Introduction Installation and Operation Manual
1-4 Overview LA-210 Ver. 1.5
Flow Mode
Incoming customer traffic is mapped to the Ethernet flows according to user
defined per-port criteria.
Main flow mode features are:
• MEF 9 and 14 certified.
• Up to 8 flows are supported
o Flow and Flow.CoS support.
• EPL services supported.
• EVPL services supported
• Two rate three color policer at Flow or Flow.CoS
level
• VLAN manipulation (stacking) at port egress
• P bit marking
• Priority mapping to egress queues according
802.1p, DHCP or IP precedence.
Traffic Prioritization
LA-210 supports enhanced traffic prioritization and QoS to ensure service level
agreements (SLA) that comply with business customer’s high demands.
In Flow mode, traffic policing is applied per service and operates according to the
dual leaky bucket mechanism based on CIR + CBS and EIR + EBS. User traffic is
mapped into up to four separate queues, which can be configured to work as
strict priority or weighted fair queue (WFQ).
The queues handle traffic with different service demands, such as real-time
traffic, premium data or best-effort data.
Rate limitations are applied at the port and queue levels.
Quality of Service
LA-210 supports Quality of Service (QoS) in DSL egress direction. Classification is
according to VLAN priority (802.1p), DSCP (bits 0-5 in IP TOS byte) and port
based. Mapping classification results in four transmit priority queues with strict
priority, WFQ or both.
Ethernet OAM
LA-210 provides two types of Ethernet OAM:
• End-to-end OAM based on IEEE 802.1ag and ITU T Y.1731 enable Ethernet
service providers to monitor their services proactively, measure end-to-end
performance and guarantee that the customers receive the contracted SLA.
Fault monitoring and performance measurement include Frame Delay, Frame
Delay Variation, Frame Loss and Availability
• Single segment (link) OAM according to IEEE 802.3ah fault indication,
including remote loopback.
For additional information on OAM, refer to
Appendix C .