2011/11/20 <[email protected]>: > For the legay switches/routers, the number and fields of tables are > fixed. But what about a newly designed openflow-only switch/router? If the > controller can't configure the tables, the programmability is very limited.
I'm not sure I understand this statement: tables are the moral equivalent of stages in a pipeline. You can't dynamically reconfigure the number of pipeline stages on your x86, but yet an x86 CPU is still fairly programmable. OpenFlow 1.1 provides you the ability to manipulate the _contents_ of the tables, which enables a large scale of applications. Was there a specific application that you were thinking of that would require dynamic table creation? Also, fwiw, I should be a little more precise: when I say "hardware" , I really mean ASICs. FPGA-based and network processor-based hardware is flexible enough to potentially re-program the number of tables, and even ASIC-based hardware have lots of configuration options. But the bottom line remains, I'm not aware of any hardware switches that support this currently. - Rob . _______________________________________________ openflow-discuss mailing list [email protected] https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
