- One of the best ways we can capture network data
for monitoring purposes involves mirroring ports
with the help of SPAN, switched port analyzer.
In this module, we'll look at the overall theory of SPAN,
we'll examine both local
and remote SPAN session configuration,
including remote monitoring across layer three domains
through ERSPAN, and we'll jump into Cisco VIRL
to try our hand out at an RSPAN lab.