Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 18

Fabric Manager Tools and CLI Commands
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
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:
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SPAN Destinations
SPAN destinations refer to the interfaces that monitors source ports. The Cisco Nexus 5000 Series switch
supports Ethernet and Fibre Channel interfaces as SPAN destinations.
Source SPAN
Ethernet
Fibre Channel
Fibre Channel
Virtual Ethernet
Virtual Fibre Channel
Virtual Fibre Channel
Characteristics of Destination Ports
Each local SPAN session must have a destination port (also called a monitoring port) that receives a copy
of traffic from the source ports, VLANs, or VSANs. A destination port has these characteristics:
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Cisco Nexus 5000 Series Troubleshooting Guide
1-10
Can be of any port type: Ethernet, virtual Ethernet, Fibre Channel, virtual Fibre Channel, port
channel, SAN port channel, VLAN, and VSAN.
Cannot be monitored in multiple SPAN sessions.
Cannot be a destination port.
Each source port can be configured with a direction (ingress, egress, or both) to monitor. For VLAN,
VSAN, port channel, and SAN port channel sources, 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.
Beginning with Cisco NX-OS Release 5.0(2)N1(1). Port channel and SAN port channel interfaces
can be configured as ingress or egress source ports.
Source ports 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
source ports.
The Cisco Nexus 5010 switch supports a maximum of two egress SPAN source ports. This limit does
not apply to the Cisco Nexus 5020 Switch and the Cisco Nexus 5548 switch.
Can be any physical port, Ethernet, Ethernet (FCoE), or Fibre Channel. Virtual Ethernet and virtual
Fibre Channel ports cannot be destination ports.
Cannot be a source port.
Cannot be a port channel or SAN port channel group.
Destination SPAN
Ethernet
Fibre Channel
Ethernet (FCoE)
Ethernet
Fibre Channel
Ethernet (FCoE)
Chapter 1 Troubleshooting Overview
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