CHAPTER 14 Resolving

The next stop of the packet, as well as of our description of packet processing in EZchip, is resolving. Based on the results of the searched items and the messages coming from the parsing phase, the resolving stage determines the actions to be taken on the frame in the next stage—modifying. In other words, TOPresolve is the decision point for handling frames. It receives messages and search results from the TOPparse and TOPsearch I engines, respectively, and processes them to make decisions for TOPmodify about how to manipulate the frame.

This chapter outlines the TOPresolve architecture, its blocks (called devices), and its instruction set. A simple example is also given to demonstrate TOPresolve’s use. As with other chapters ...

Get Network Processors now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.