Generic Functions
In the generic role as a packet processor, a number of optimised features or functions are typically present in a network processor, these include:
- Pattern matching - the ability to find specific patterns of bits or bytes within packets in a packet stream.
- Key lookup for example, address lookup - the ability to quickly undertake a database lookup using a key (typically an address on a packet) to find a result, typically routing information.
- Computation
- Data bitfield manipulation - the ability to change certain data fields contained in the packet as it is being processed.
- Queue management - as packets are received, processed and scheduled to be sent onwards, they are stored in queues.
- Control processing - the micro operations of processing a packet are controlled at a macro level which involves communication and orchestration with other nodes in a system.
- Quick allocation and re-circulation of packet buffers.
Read more about this topic: Network Processor
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