Aricent LA (Link Aggregation) is a portable implementation of the IEEE 802.3ad Link Aggregation specification. The software can be very easily ported to different RTOS environments and interfaced to different switch hardware. Aricent LA contains Aggregator and Aggregation Control functionalities. It provides support for extensive management capabilities.

Figure 1. Aricent LA Architecture

Aricent LA Features :

• Provides Link Aggregation capability, as specified in IEEE 802.3ad.
• Implements LACP (Link Aggregation Control Protocol) for automatic communication of aggregation capability between systems and automatic configuration of link aggregation.
• Supports selection of links as “Standby” links, which will be able to take part in aggregation upon failure of one of the active links in aggregation.
• Supports Distribution Algorithm per Aggregator that selects a link for frame distribution.
• Supports manual aggregation of links, which will enable the aggregation of multiple ports without LACP protocol.
• Provides MIB support - Annexe 30C of IEEE 802.3ad through SNMP and CLI configuration. Implements the ifTable definitions for an Aggregator as per Table 30C-2.
• Per port enable/disable feature of Link aggregation.
• Provides easy integration with switch chipset or Network Processor hardware. It can be easily ported to multiprocessor systems.
• Provides flexible, easy-to-adapt interfaces with 3rd party components.
• Available in Integrated form with other Aricent L2 Protocols such as TB/STP, VLAN, and PNAC.
• Conforms to Future Software Architecture for Portability (FSAP2), thus ensuring highly portable code, which uses flexible buffer and timer management libraries.

Aricent LA Benefits:

Aricent LA reduces the time to market for OEMs and VARs who wish to incorporate the Link Aggregation functionality into their switching/routing devices.

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