Configuring Span; Span Sources; Characteristics Of Source Ports - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Configuring SPAN

This chapter contains the following sections:
•
Configuring SPAN
The Switched Port Analyzer (SPAN) feature (sometimes called port mirroring or port monitoring) selects
network traffic for analysis by a network analyzer. The network analyzer can be a Cisco SwitchProbe, a Fibre
Channel Analyzer, or other Remote Monitoring (RMON) probes.

SPAN Sources

SPAN sources refer to the interfaces from which traffic can be monitored. The Cisco Nexus 5000 Series
switch supports Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VLANs,
and VSANs as SPAN sources. With VLANs or VSANs, all supported interfaces in the specified VLAN or
VSAN are included as SPAN sources. You can choose the SPAN traffic in the ingress direction, the egress
direction, or both directions for Ethernet, Fibre Channel, and virtual Fibre Channel source interfaces:
• Ingress source (Rx)—Traffic entering the switch through this source port is copied to the SPAN destination
• Egress source (Tx)—Traffic exiting the switch through this source port is copied to the SPAN destination

Characteristics of Source Ports

A source port, also called a monitored port, is a switched interface that you monitor for network traffic analysis.
The switch supports any number of ingress source ports (up to the maximum number of available ports on
the switch) and any number of source VLANs or VSANs.
A source port has these characteristics:
• Can be of any port type: Ethernet, Fibre Channel, virtual Fibre Channel, port channel, SAN port channel,
• Cannot be monitored in multiple SPAN sessions.
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Configuring SPAN, page 673
port.
port.
VLAN, and VSAN.
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