NX-OS SPAN

Nexus 7000/5000 SPAN Sessions

SPAN Session Limit - 18

Nexus 1000V

SPAN Session Limit (SPAN and ERSPAN) - 64

Nexus 5000 SPAN Sessions

Can SPAN Ethernet,Fibre Channel,PortChannel,SAN PortChannel,VLAN,VSAN (Virtual Storage Area Network)

Nexus 7000 Example:

Create a SPAN Monitor Port for the Analyzer

(config)#interface ethernet 1/1

(config-if)#switchport

(config-if)#switchport monitor

If the system is an IDS/IPS it may required the ability to learn the MAC address of the device. Include the following

(config-if)#switchport monitor ingress learning

Configure Monitor Session 

(config)#monitor session 1

(config-monitor)#source vlan 10 rx

(config-monitor)#source vlan 20 both

(config-monitor)#source vlan 30 tx

(config-monitor)#destination interface ethernet 1/1

(config-monitor)#description SPANNING SESSION 1

(config-monitor)#no shut

You must no shut the monitor session