Ciena Corporation $CIEN is pulling back after a critical bullish breakout in August. Let's take a look at the pullback to see where we can anticipate support.CIEN Weekly Chart(click to enlarge)Key Breakout:- We start with the weekly chart because it shows the length of the consolidation period, which was essentially between February of 2009 and the August 2018 when price broke out of this consolidation.- We can say that price was in a triangle consolidation. The most clear attribute of this was the rising lows, which already gave a subtle hint that bulls were stronger in this market, within the context of an overall sideways market.- In August, we finally saw a strong bullish breakout, now followed by a pullback.Resistance as Support:- If the market has indeed shifted from consolidation to bullish mode, it should respect some of the previous resistance factors as support.- For example, there is a previous resistance around $29.10. There was also a common resistance around $27.95. - We should therefore monitor the $28-$29 area for support.Earlier Signs of Bulls:- The daily chart shows us some previous signs of bullish outlook, so let's review some of them.- First of all, there were a couple of times price respected the 200-day simple moving average (SMA) as support. These are known as bullish slingshot signals.- Furthermore, there was an "inverted head and shoulders" patter between March and August. This is also a bullish sign when the prevailing swing was bullish, as was in this case. - Finally, the RSI has tagged 70 in July, and then stayed above 40 in August, which reflects maintenance of the newly developed bullish momentum.- So while the weekly chart shows a bullish breakout that only materialized recently, the daily chart shows a bullish trend in 2018 that has started to maintain the momentum.- The daily chart therefore adds reasoning to anticipating support in the $28-$29 area. CIEN Daily Chart(click to enlarge)