Cisco Technology, Inc.

Srinivas Avasarala

Sanjaya Kumar

Samar Sharma

Jeevan Madhu Kamisetty

Varagur Chandrasekaran

Giridhar Rajaram

Methods and apparatus for performing SPAN for a virtual port are disclosed. Specifically, a frame is received from a first port. The frame or a copy thereof is transmitted to a second port, where the second port is identified in a header of the frame. At least one of the first port and the second port is a virtual port. The frame or a copy thereof is also transmitted to a third port, thereby enabling an analyzer coupled to the third port to analyze traffic received by the third port.

Virtual port based span

Virtual port based SPAN

Methods and apparatus are provided for determining traffic characteristics and statistics for storage area network flows. An intelligent line card associated with a fibre channel switch is used to snoop selected flows in a storage area network. Flows are characterized using information that may include initiator target pairs and initiator target logical unit number (LUN) groupings. Selected flows are configured for monitoring and information about the selected flows is maintained. Selected flow information can be analyzed at a line card associated with a fibre channel switch.

Determining traffic flow characteristics in a storage area network

Growing community of inventors

Sunnyvale, CA, United States of America

Srinivas Avasarala