Modular/Fixed Carrier Ethernet Demarcation Device

• Supports SLA-enabled EPL and EVPL services
• Pay-as-you-grow flexibility with license-activated upgrades
• Handles multi-priority traffic while ensuring latency, jitter and packet delivery performance on a per-flow basis
• Enables intelligent oversubscription by maximizing bandwidth utilization with CIR/EIR service
• Enables remote and automatic fault localization without service interruptions or costly on-site inspections
• Ensures service continuity in event of link failures with service resiliency and link protection
• Allows for highly accurate service control with hardware-based Ethernet OAM and PM measurements at wire speed

Hardware-based Ethernet OAM and performance monitoring for SLA assurance

The ETX-203A Carrier Ethernet demarcation device includes a complete Ethernet OAM suite that supports Ethernet Link OAM (IEEE standard 802.3-2005, formerly 802.3ah), Ethernet Service OAM (IEEE 802.1ag) and Performance Monitoring (ITU-T Y.1731). These are enhanced with a built-in RFC-2544 test generation engine, as well as Layer 1, 2 and 3 diagnostic loopback capabilities with MAC and IP address swap.

Featuring ultra-fast, hardware-based processing capabilities, the ETX-203A performs OAM and PM measurements in under 1 micro second with maximum precision.

The device offers advanced SLA assurance tools, including user-defined KPI (key performance indicators) threshold configuration, real-time SLA violation alerts and per-flow daily statistics reporting.

Remote provisioning and traffic management

The ETX-203A allows efficient handling of multi-priority traffic on a per-flow basis. It enables multi-criteria traffic classification as well as metering, policing and shaping to help carriers rate-limit user traffic according to pre-defined CIR (committed information rate) and EIR (excess information rate) profiles.

Enhanced quality of service is further supported by a hierarchical scheduling mechanism that combines Strict Priority (SP) and weighted fair queue (WFQ) scheduling, as well as weighted random early detection (WRED) policy and color-sensitive P-bit re-marking packet editing functionalities.

Uplink resiliency and protection

The ETX-203A supports dual homing link redundancy and Link Aggregation (LAG) using 802.3ad LACP. In addition, EVC path protection is supported with Ethernet Linear Protection Switching per ITU-T G.8031.

Management and security

The ETX-203A features flexible management capabilities, including local management via an ASCII terminal (RS-232). In addition, remote management can be performed either inband using the network or user ports, or out-of-band using a dedicated management port, while maintaining separation between management and user traffic via the use of VLANs.

The ETX-203A also supports a variety of access protocols, including CLI over Telnet,
SNMP, Web server, and TFTP. Incorporated security features include Secure Shell (SSH), Web-based Secure Socket Layer (SSL), SNMPv3, RADIUS and Terminal Access Controller Access-Control System (TACACS+), as well as management access control list
(ACL).