Upstream DOCSIS®/EuroDOCSIS™ 3.0-Based CMTS MAC
The BCM3216 is a highly integrated DOCSIS 3.0 CMTS MAC IC for use in DOCSIS 3.0 CMTS products. Based on cost-effective hardware-processing engines, the BCM3216 provides a powerful yet cost-effective solution for a variety of CMTS architectures. With hardware support for bonding traffic reassembly, concatenation parsing, fragment reassembly, payload header suppression, and advanced physical-layer data rates, the BCM3216 serves as the heart of a next-generation CMTS.
The BCM3216 performs packet reassembly for bonded traffic, DES and AES decryption, fragment reassembly, deconcatenation, payload header expansion, Propane® packet acceleration, upstream MIB statistic gathering, and priority queuing for the resultant packets. DOCSIS MAC management messages can be forwarded to different destinations than data packets for a flexible interface to both a Network Processing Engine and System Controller using standard protocols.
- The Broadcom BCM3216 is a DOCSIS 3.0 Upstream MAC chip for Cable Modem Termination System (CMTS) equipment used in broadband cable networks
- Supports up to 512 L2TPV3 sessions to handle 128 physical upstream channels
- A high-performance, integrated solution for upstream transmission for data, video and telephony applications over cable HFC networks
- Hardware support for MAC-layer per-packet functions including bonding reassembly, fragmentation, concatenation, and payload header suppression, offloads system CPU, giving higher overall system performance
