Alcatel‑Lucent bCEM‑U Control Module – YP1043087D6 / 3BK28676ABAC01

The Alcatel‑Lucent bCEM‑U (base Control and Ethernet Module – Universal) is a high‑performance control and processing unit designed for advanced chassis‑based systems. Identified by the manufacturer part numbers YP1043087D6 and 3BK28676ABAC01, this module serves as the central intelligence for traffic forwarding, quality of service (QoS) enforcement, and system redundancy in Alcatel‑Lucent's IP/MPLS routing and switching families.

Module Overview

The bCEM‑U is typically deployed in the control plane of large‑capacity shelves, where it handles routing protocol processing, forwarding table updates, and network management communication. It features a powerful multi‑core processor with hardware acceleration for packet classification and filtering. The module also integrates high‑speed interfaces to the fabric backplane, enabling line‑rate communication with all line cards in the system.

This universal variant supports both Ethernet and TDM line cards, making it suitable for mixed‑service environments. It includes extensive memory for routing tables, ACLs, and QoS policies, as well as redundant power and clock inputs for high availability.

Technical Specifications

• Product Name: bCEM‑U Control Module

• Part Numbers: YP1043087D6, 3BK28676ABAC01

• Processor: Dual‑core 1.5 GHz network processor

• Memory: 8 GB DDR4 ECC RAM, 4 GB flash storage

• Control Interfaces: 2 x 10/100/1000BASE‑T management ports, 1 x RS‑232 console

• Backplane Bandwidth: 100 Gbps (full duplex) to fabric

• Supported Protocols: BGP, OSPF, IS‑IS, MPLS, VPLS, EVPN, Segment Routing

• QoS: Hardware‑based hierarchical scheduling and shaping

• Redundancy: Active/Standby with hitless failover

• Power Consumption: 60 W typical

• Operating Temperature: 0°C to 50°C

Key Features and Benefits

• High‑performance processing for large‑scale routing and forwarding.

• Comprehensive QoS support for service differentiation and SLA enforcement.

• Integrated security features including ACLs and control plane protection.

• Hot‑swappable design for easy field replacement.

• Remote management via SNMP, NETCONF, and CLI.

Deployment Scenarios

The bCEM‑U is deployed in Alcatel‑Lucent 7750 SR, 7450 ESS, and 7210 SAS platforms as the primary control module. It handles all routing and signaling tasks, while distributing forwarding decisions to the line cards via a high‑speed internal bus. In large enterprise core networks, it aggregates connections from multiple access switches and provides MPLS‑based VPN services.

For service provider networks, the module supports advanced features like traffic engineering, fast reroute (FRR), and end‑to‑end OAM, ensuring carrier‑grade reliability. Its redundant architecture enables software upgrades and hardware maintenance without impacting user traffic.

Management and Maintenance

The bCEM‑U is fully manageable through the Alcatel‑Lucent NMS, which provides real‑time monitoring of CPU load, memory usage, and forwarding statistics. Configuration changes can be applied dynamically, and the module supports in‑service software upgrades (ISSU) for minimal downtime.

Reliability and Compliance

Designed with redundant power inputs and temperature sensors, the module ensures operation in harsh conditions. It complies with NEBS level 3, RoHS, and ETSI environmental standards. MTBF is rated at 150,000 hours.

Conclusion

The Alcatel‑Lucent bCEM‑U control module (YP1043087D6 / 3BK28676ABAC01) is a powerful and versatile processing unit for modern IP/MPLS networks. Its robust performance, advanced features, and redundancy make it a critical component for high‑availability service delivery.