Information About SPAN
The SPAN feature is specific to switches in the Cisco MDS 9000 Family. It monitors network traffic through a Fibre Channel interface. Traffic through any Fibre Channel interface can be replicated to a special port called the SPAN destination port (SD port). Any Fibre Channel port in a switch can be configured as an SD port. Once an interface is in SD port mode, it cannot be used for normal data traffic. You can attach a Fibre Channel Analyzer to the SD port to monitor SPAN traffic.
SD ports do not receive frames, they only transmit a copy of the SPAN source traffic. The SPAN feature is nonintrusive and does not affect switching of network traffic for any SPAN source ports .
This section covers the following topics:
- SPAN Sources
- IPS Source Ports
- Allowed Source Interface Types
- VSAN as a Source
- SPAN Sessions
- Specifying Filters
- SD Port Characteristics
- Monitoring Traffic Using Fibre Channel Analyzers
- Monitoring Without SPAN
- Monitoring with SPAN
- Single SD Port to Monitor Traffic
- SD Port Configuration
- Mapping the FC Tunnel
- Remote SPAN
- Advantages of Using RSPAN
- FC and RSPAN Tunnels
- ST Port Configuration
- ST Port Characteristics
- Creating Explicit Paths
Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.