Patent
Switch port analyzers
Raymond J. Kloth,Thomas J. Edsall,Kalyan Ghosh,Gaurav Rastogi,Dinesh G. Dutt,Matthew Cressa +5 more
- 20 Aug 2004
121
TL;DR: In this paper, the authors proposed a non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device using the switched port analyzer (SPAN) and/or remote SPAN (RSPAN).
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Abstract: 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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Citations
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91
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