So in this video, I'd like to walk you through the configuration and
verification of setting up span the original flavor
Which means we're gonna do it on the same switch. So as far as our game plan,
let's put a quick game plan together for span
What I propose we do is let's go ahead and let's pick on
Switch to so we use switch to and we're using a single switch with span
So as far as the traffic goes let's go ahead and collect data that's coming
into or out of gig zero slash one
The other option is we could just say if this client for example or this port WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
The other option is we could just say if this client for example or this port
was in VLAN one
We could also say let's go ahead and collect all the packets from VLAN one
And if we did that then any traffic going through VLAN one would be part of the
source of our capture
So for the demo, let's go ahead and use gig zero slash one as our source
So we switch to source. It's gonna be gig zero slash one
I'll put little double arrow there main traffic going in and out and for the
destination even though I don't have it in our
Typology, let's go ahead and use port three slash three on this local switch
and then be gig of it
Ethant three slash three so our destination port would be gig three slash three WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
Ethant three slash three so our destination port would be gig three slash three
then in a production environment
We'd place our device there that's collecting those packet captures with a tool
like wire shark or some other type of network
Management tool to go ahead and take a look at those packets now the syntax to
set this up on
Switch to is going to use the command monitor
So it's going to be monitor space
Session and then we can pick a session number. We'll go ahead and start with
session number one
And then we'd say source interface and this example will use gig zero slash one
And we can further specify the direction that we want to collect that WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And we can further specify the direction that we want to collect that
information on meaning traffic going in or traffic going out
Or both and then secondly we do the same command monitor session one and then
the keyword destination
And then we'd say interface for example
Gig three slash three if that's where we want the day to go and then we can use
some show commands to verify that
So without further ado, let me go ahead and walk you through the demonstration
of creating span on a single switch with
Gig zero one as a source and gig three three as the destination
So over to our lab environment we go and let me go ahead and just verify our WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
So over to our lab environment we go and let me go ahead and just verify our
topology by double clicking here on the lab
Depology and bring that up fantastic
I'm going to scootch this down just a little bit and then to get to the console
access for our devices
We're gonna go ahead and use putty which is running here on server one
So we'll double click on server one - nug give that a moment to initialize and
here it comes that looks good
All right, so here's our console access via putty
Let's go ahead and head over to switch to so we go to the tab for switch to and
here switch to let's do a show WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
here switch to let's do a show
monitor session and space question mark and let's type in all and currently we
have no span configuration present
So great. Let's go ahead and create one. So we'll go into configuration mode
and based on our plan
Let's go ahead and use monitor and session and let's use number one because we
're starting out here and we'll say source
Then we use the keyword interface that we're tracking an interface instead of a
VLAN self
We want to track on a VLAN we could use the keyword VLAN instead
So based on our plan we want to collect all the traffic that's being seen on
interface gig WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
interface gig
And let's take a look at our topology here for a moment on gig zero slash one
that leads up to PC 12
So we'll type in gig zero slash one space question mark and then we're gonna
specify which direction
So if we want to receive traffic on the interface or sent traffic on the
interface or both
We go ahead and specify that so I'm gonna specify both meaning ingress and e
gress traffic and boom now
We have half of our monitor set up now the second part is where do we want to
send it?
So if our destination port is gig three slash three
That's where our protocol analyzer is with the software to collect that traffic WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
That's where our protocol analyzer is with the software to collect that traffic
We type in monitor session same session number and instead of saying source is
a destination
Then we're gonna specify interface and the interface when I sent it to is gig
3/3 and we are done so now we can do a show monitor based question mark and we
'll type in all
our center and there's our current session
So we're collecting data off of zero slash one traffic goes in or out of that
interface and we're gonna ship it over to gig
3/3 so configuring span on single switch is pretty straightforward
We create our monitor session WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
We create our monitor session
We specify where to pick up the data where to mirror or replicate that data to
and boom or done
So now that we have configured span on a single switch in the next video
I'd like to walk you through setting up our span where we're gonna actually be
using our span VLAN and
Copying the data on one switch and replicating it over to our span VLAN
So it can be picked up by the second switch and we'll do that in the next video
And I'll see you there in just a moment