Cisco Nexus 7000 Series Reference Manual page 310

multicast best-effort
This example shows how to remove the multicast best effort mode for the specified ERSPAN or SPAN
session:
switch# configure terminal
switch(config)# monitor session 3
switch(config-monitor)# no multicast best-effort
switch(config-monitor)#
Related Commands Command
monitor session
show monitor session
Cisco Nexus 7000 Series NX-OS System Management Command Reference
282
Description
Places you in the monitor configuration mode for configuring a SPAN
session.
Displays the status of the SPAN or ERSPAN session.
M Commands
OL-25806-03