Under the existingcircuit breaker pilot, trading in a stock pauses across the U.S. equity markets for a five-minute period if the stock experiences a 10 percent change in price over the preceding five minutes.
If approved, the new limit up-limit down mechanism would replace the existing single stock circuit breakers, which were approved on a pilot basis shortly after the market events of May 6, 2010.
The new switch, dubbed EX9200, is based on a programmable Juniper ASIC (application-specific integrated circuit) which provides compatibility with not only existing SDN protocols but also new ones as they develop over the next decade.