BCM6517IPB

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BCM6517IPB is a gigabit Ethernet switch integrated circuit designed for consumer and SMB gateway applications. The IC supports latency-sensitive IEEE 802.1Q tag-based VLAN and IEEE 802.1ad double-tag stacking VLAN, thus allowing packet tags to be duplicated into multiple streams simultaneousely to provide better user experience for videoconferencing and online gaming.

The device has up to 60 gigabit Ethernet ports, which support diverse topologies such as LAN (Local area network) or VLAN (Virtual Local Area Network). As a result, it\'s suitable for use in a variety of applications such as residential gateway, enterprise intrusion detection, firewalls, and content delivery systems.

The BCM6517IPB is based on the Broadcom Advanced Packet Caching (APC) architecture. APC involves packet pre-fetching from source to destination, thus reducing latency and improving overall throughput. This allows the device to balance load across multiple links while optimizing performance. The APC also ensures that the IC supports the IEEE 802.3ad Link Aggregation Control Protocol (LACP), allowing multiple physical links to be bonded together to provide a higher level of bandwidth.

The BCM6517IPB uses a multi-core packet processor to ensure line rate switching. Packets are classified and scheduled in data and control planes to ensure that every application gets the best performance. It creates egress queues for each port, enabling bursty and delay sensitive traffic to get better latency performance. The IC also supports a variety of QoS features including link aggregation, inbound port-based rate-limiting, CoS queuing, ACLs, and QoS remarking.

The IC is designed using a comprehensive system-on-chip approach. It uses an integrated packet forwarding engine that is compliant with the Broadcom Traffic Steering Architecture. This provides for efficient packet flow and provides packet-by-packet traffic analysis for maximum control over the switch fabric. This allows the device to support latency-sensitive applications such as VoIP, streaming media, and online gaming.

In terms of security, the BCM6517IPB supports the IEEE 802.11i educational security mechanism, allowing users to securely access the network using Advanced Encryption Standard (AES) and TKIP protocols. It also supports IPSec and WEB security features such as Web filtering and URL filtering to make sure the network is secure from potential attacks.

In conclusion, the BCM6517IPB is a powerful IC designed for a variety of applications. Its performance, flexibility, and security features make it a great choice for many gateway applications. And its support for IPSec, WEB filtering, and other features make it an ideal choice for businesses wishing to provide their customers with a secure network.

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