Configuring Span; Information About Span; Span Sources; Characteristics Of Source Ports - Cisco Nexus 5600 Series Configuration Manual
Nx-os system management
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Information About SPAN
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Information About SPAN
SPAN Sources
SPAN sources refer to the interfaces from which traffic can be monitored. The Cisco Nexus device supports
Ethernet, Fibre Channel, virtual Fibre Channel, port channels, SAN port channels, VSANs and VLANs 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 device through this source port is copied to the SPAN destination
• Egress source (Tx)—Traffic exiting the device through this source port is copied to the SPAN destination
VSAN ports cannot be configured as ingress source ports in a SPAN session.
Note
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:
• Cannot be monitored in multiple SPAN sessions.
• Cannot be a destination port.
• Can be configured with a direction (ingress, egress, or both) to monitor. For VLAN and VSAN sources,
• Can be in the same or different VLANs or VSANs.
• For VLAN or VSAN SPAN sources, all active ports in the source VLAN or VSAN are included as
Cisco Nexus 5600 Series NX-OS System Management Configuration Guide, Release 7.x
176
Troubleshooting SPAN session issues, page 190
Displaying SPAN Information, page 191
Configuration Example for a SPAN ACL, page 192
Configuration Example for SPAN-on-Latency Session, page 192
port.
port.
the monitored direction can only be ingress and applies to all physical ports in the group. The RX/TX
option is not available for VLAN or VSAN SPAN sessions.
source ports.
Configuring SPAN
OL-31641-01
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