Cisco Technology, Inc.

Matthew Cressa

Thomas James Edsall

Dinesh Ganapathy Dutt

Kalyan Ghosh

Raymond Kloth

Raymond J Kloth

Kalyan K Ghosh

Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer ('SPAN') and/or remote SPAN ('RSPAN') features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.

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Grass Valley, CA, United States of America

Matthew Cressa