From: anthony.sequeira@thomson.com
Date: Fri Nov 10 2006 - 12:59:54 ART
You are correct - sort of - the SPAN destination is the port that frames
are copied to for analysis. It is the port where you plug in your
network analyzer.
It is typically an access port - and as such - it is a member of a
single VLAN. Below you indicate that an access port would not be a
member of any VLAN. Careful on that point.
Please note that the exact SPAN syntax varies from switch platform to
platform. Be sure you understand the syntax for Lab Exam switches if
your primary concern is the lab.
Also, for SPAN in a production network - I have read that once you are
done monitoring - be sure to delete the SPAN session - why? Because
Spanning Tree Protocol is disabled on the SPAN destination port. I have
not confirmed this - but I will take Cisco's word for it.
Anthony J Sequeira
#15626
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Adhu Ajit
Sent: Thursday, November 09, 2006 10:42 PM
To: ccielab@groupstudy.com
Subject: VLAN span question
From what I understand from the VLAN span feature documentation:
In the following sample config:
Switch(config)# no monitor session 2
Switch(config)# monitor session 2 source vlan 1 - 3 rx
Switch(config)# monitor session 2 destination interface
gigabitethernet0/7
The port gigabitethernet0/7 is a standalone port and not associated to
any VLAN. It is just an access port that is hooked to a monitoring
device. Please correct me if I'm wrong.
Thank you.
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