Brocase switches can be frozen with a few specially crafted TCP packets. The IP stack becomes unresponsive and remote administration becomes impossible. This attack does not require any authentication and there is no trace in any log file. Versions affected: All Brocade fiber channel switches running pre-3.2 code including Silkworm 3800, Silkworm 3200 and Silkworm 2800.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34275/BrocadeDoS.txt
Source: https://packetstormsecurity.com/files/34275/BrocadeDoS.txt.html