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Posedge Wireless Packet Processor

Posedge’s Wireless Packet Processor (WPP) is a highly programmable Packet Processing engine that can be used to realize scalable, high performance, application aware Access Points/Base-Stations for Wireless LAN and LTE.

WPP routes multi-gigabits of data and provides sophisticated Quality of Service (QoS) with bandwidth shared across large number of clients offloading the Host Processor significantly.

WPP provides a Policy framework unified across wired and wireless Layer-2-Layer-4 across the LAN to support applications like Voice over WiFi and Video over WiFi, which require end-to-end QoS. In addition the Policy framework allows policies based on User-ID, Location etc.

The application aware engine supports identification packet flow for protocols like Skype, MSN and Bit-Torrent and applies configured QoS parameters to the identified flows.

 

 

      

Features:

• Application aware QoS
• Scalable to IEEE-802.11ac 3x3 data rates upto 1.5 Gbps line rates
• Supports multiple flows (64K) and clients (256)
• Fast path / slow path architecrtue
• Scalable architecture based on performance requirements
• Packet Classification with multiple coherent 32-bit RISC processors
• Supports Low latency Queues for Low Power Peripherals
• Multiple SSIDs with different Security levels
• Complex functions like QoS and buffer management in Hardware
• per AC - Per STA Queuing and shapers per queue
• AMPDU-AMSDU aware scheduling of packets
• Enables Air-Time Fairness across stations with different speeds
• Proprietary internal bus for optimal throughput and highest performance with separate buses for data and packet communication
• IEEE802.3 compliant Gigabit Ethernet Maccore with support for Jumbo frames, VLAN tagging and flow control
• Connects to Posedge WLAN MAC Controller and configurable to other MAC controllers
• Flexible Packet Store, with Internal and or using Host DDR Interface
• Multicast to Unicast support without buffer copy
• Programmable Packet Editing
• Optimal Hardware/Software partitioning

Deliverables:

• RTL code of the Fast Path Engine
• RTL code for the Traffic Manager
• Host Software required setup, maintain and tear down the fast path tables. The modules adapted form the standard Linux Kernel with net-filter hooks adaptation
• Net Interface Driver
• TMU driver for adjusting QoS parameters
• Fast-path code classifier code (C-level) for the protocols implemented in the fast path engines. The PE code is corrently available for the IPV4, VLAN, Bridge, ARP, RARP, IGMP, IGMP proxy protocols

Applications:

• Outdoor Access Points
• LTE / Small Cell Access Points
• Enterprise /SMB FAT APs
• Wireless Base-stations