Ethernet Silicon Purpose-Built for the Carrier Market

Brooklyn-XLA Access Switch Family

The Brooklyn-XLA family is a portfolio of carrier Ethernet switches specifically designed for the access market. Leveraging the successful Brooklyn-10 architecture, the Brooklyn-XLA provides cost-effective carrier-grade layer 2 switching with integrated traffic management. With its deterministic performance, service flexibility, robust QoS capabilities, advanced timing synchronization, and OAM support, the Brooklyn-XLA is an ideal solution for next-generation Wireless Backhaul, Network Termination, Service Demarcation, and Multi-Tenant Units looking to add the latest carrier Ethernet features.

Supporting the latest Metro Ethernet Layer 2 VPN protocols, the Brooklyn-XLA offers Provider Bridging (also known as Q-in-Q or VLAN stacking) so service provider networks can breakthrough the 4K VLAN tag limitation. In addition, the Brooklyn-XLA supports fully compliant Provider Backbone Bridging (PBB or MAC-in-MAC) to solve Provider Bridge service scalability issues and manage the MAC explosion occurring at the access/edge. PBB-Traffic Engineering (PBB-TE), the connection oriented extension to PBB, is also supported. Furthermore, the Brooklyn-XLA provides flexible MPLS packet labeling and line-rate VPLS replication for MPLS Layer 2 VPN services.

Through its unique external packet buffering architecture with dynamic allocation, the Brooklyn-XLA eliminates packet loss under all but the worst case congestion scenarios. Its comprehensive traffic manager performs classification, policing, congestion avoidance, scheduling, and egress shaping while maintaining line rate performance.

The Brooklyn-XLA is architected to support the IEEE802.3ah EFM, IEEE 802.1ag CFM and ITU Y.1731 Link and Service Layer OAM standards. With its advanced filtering mechanisms and statistics counters, the Brooklyn-XLA can perform connectivity checks and accurate performance measurements with either software or hardware assist. Traditional TDM access networks that are migrating to Ethernet require a similar timing synchronization capability that is inherent in the legacy infrastructure. Designed for these applications, the Brooklyn-XLA enables network timing synchronization through both packet-level 1588v2 and link-layer synchronous Ethernet support.

Register now with Lightstorm Networks and you will be able to download in-depth technical documents on the Brooklyn-XLA Access Switch.

Features & Benefits

FLEXIBLE SWITCHING CONFIGURATIONS

Brooklyn-XLA10 - 8 SGMII data, 2 RGMII control ports

Brooklyn-XLA16 - 12 SGMII data, 2 RGMII control, 2 2.5Gb Expansion ports

SERVICE SUPPORT AND NETWORK SCALABILITY

8K services - E-LINE, E-LAN, and E-TREE support

PB/Q-in-Q Support - Eliminates provider 4K VLAN limitation

PBB/MAC-in-MAC support - Removes PB scalability issues

16K pseudowires - Enables L2 MPLS-based VPNs

PBB-TE - Connection-oriented services

128K MAC addresses - Scale supports network MAC explosion

16K VLAN pool - Carrier scalability without restrictions

8K multicast groups - Ideal for video distribution applications

ROBUST QUALITY OF SERVICE

Up to 192MB of external buffers - No packet drops under temporary congestion

8 queues per port - Flexible CoS control

VLAN, PCP, EXP, DSCP classification - Flexible traffic type classification

8K double bucket policers - Enforces strict SLAs per user or service

WRED and TD congestion avoidance - Improved performance

SP/DWRR scheduling - Guaranteed delivery of high priority traffic

CoS Egress Shaping - Outbound traffic adheres to SLAs

OAM AND TIMING SYNCHRONIZATION

802.3ah EFM support - Link layer fault management

802.1ag CFM support - Service layer fault management

Y.1731 support - Accurate performance monitoring

1588v2 support - Packet-based recovered clock

Synchronous Ethernet support - Allows primary/secondary clocks

Products

Key Links

Brooklyn-XLA Access Switch Family

Features & Benefits

Products Overview Lightstorm Architecture Brooklyn-10 Carrier Ethernet Switch Brooklyn-XLA Access Switch Family Hudson Service Accelerator Solas Software Suite Development System Home Key Links Document Library	Brooklyn-XLA Access Switch Family The Brooklyn-XLA family is a portfolio of carrier Ethernet switches specifically designed for the access market. Leveraging the successful Brooklyn-10 architecture, the Brooklyn-XLA provides cost-effective carrier-grade layer 2 switching with integrated traffic management. With its deterministic performance, service flexibility, robust QoS capabilities, advanced timing synchronization, and OAM support, the Brooklyn-XLA is an ideal solution for next-generation Wireless Backhaul, Network Termination, Service Demarcation, and Multi-Tenant Units looking to add the latest carrier Ethernet features. Supporting the latest Metro Ethernet Layer 2 VPN protocols, the Brooklyn-XLA offers Provider Bridging (also known as Q-in-Q or VLAN stacking) so service provider networks can breakthrough the 4K VLAN tag limitation. In addition, the Brooklyn-XLA supports fully compliant Provider Backbone Bridging (PBB or MAC-in-MAC) to solve Provider Bridge service scalability issues and manage the MAC explosion occurring at the access/edge. PBB-Traffic Engineering (PBB-TE), the connection oriented extension to PBB, is also supported. Furthermore, the Brooklyn-XLA provides flexible MPLS packet labeling and line-rate VPLS replication for MPLS Layer 2 VPN services. Through its unique external packet buffering architecture with dynamic allocation, the Brooklyn-XLA eliminates packet loss under all but the worst case congestion scenarios. Its comprehensive traffic manager performs classification, policing, congestion avoidance, scheduling, and egress shaping while maintaining line rate performance. The Brooklyn-XLA is architected to support the IEEE802.3ah EFM, IEEE 802.1ag CFM and ITU Y.1731 Link and Service Layer OAM standards. With its advanced filtering mechanisms and statistics counters, the Brooklyn-XLA can perform connectivity checks and accurate performance measurements with either software or hardware assist. Traditional TDM access networks that are migrating to Ethernet require a similar timing synchronization capability that is inherent in the legacy infrastructure. Designed for these applications, the Brooklyn-XLA enables network timing synchronization through both packet-level 1588v2 and link-layer synchronous Ethernet support. Register now with Lightstorm Networks and you will be able to download in-depth technical documents on the Brooklyn-XLA Access Switch.	Features & Benefits FLEXIBLE SWITCHING CONFIGURATIONS Brooklyn-XLA10 - 8 SGMII data, 2 RGMII control ports Brooklyn-XLA16 - 12 SGMII data, 2 RGMII control, 2 2.5Gb Expansion ports SERVICE SUPPORT AND NETWORK SCALABILITY 8K services - E-LINE, E-LAN, and E-TREE support PB/Q-in-Q Support - Eliminates provider 4K VLAN limitation PBB/MAC-in-MAC support - Removes PB scalability issues 16K pseudowires - Enables L2 MPLS-based VPNs PBB-TE - Connection-oriented services 128K MAC addresses - Scale supports network MAC explosion 16K VLAN pool - Carrier scalability without restrictions 8K multicast groups - Ideal for video distribution applications ROBUST QUALITY OF SERVICE Up to 192MB of external buffers - No packet drops under temporary congestion 8 queues per port - Flexible CoS control VLAN, PCP, EXP, DSCP classification - Flexible traffic type classification 8K double bucket policers - Enforces strict SLAs per user or service WRED and TD congestion avoidance - Improved performance SP/DWRR scheduling - Guaranteed delivery of high priority traffic CoS Egress Shaping - Outbound traffic adheres to SLAs OAM AND TIMING SYNCHRONIZATION 802.3ah EFM support - Link layer fault management 802.1ag CFM support - Service layer fault management Y.1731 support - Accurate performance monitoring 1588v2 support - Packet-based recovered clock Synchronous Ethernet support - Allows primary/secondary clocks
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