August 2005
Intermediate to advanced
798 pages
31h 12m
English
Content preview from Cisco IOS in a Nutshell, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Name
monitor session — global
Synopsis
monitor sessionsession-number{source {interfaceinterface-name}} [range| rx | tx | both] no monitor sessionsession-number{source {interfaceinterface-name}} [range| rx | tx | both] monitor sessionsession-number{destination {interfaceinterface-name}} [range] no monitor sessionsession-number{destination {interfaceinterface-name}} [range] monitor sessionsession-numberno monitor sessionsession-number
Configures
Switched Port Analyzer (SPAN)
Default
None
Description
This command enables the Switched Port Analyzer or SPAN, which allows a port to “monitor” traffic that’s sent or received on another port or VLAN. For more information, see Chapter 14. Use the command show monitor to display the SPAN session information.
-
session-number The SPAN session number. Valid values are 1 and 2.
-
source Specifies the SPAN source.
-
destination Specifies the SPAN destination.
-
interface-name Optional. The interface type and number.
-
range Optional. Specifies a list of VLANs to use for SPAN. It can be a list or a range. For example, “100,200,205,305” or “100-300”. Valid values are 1 to 1,005.
-
rx Optional. Restricts monitor to received traffic only.
-
tx Optional. Restricts monitor to transmitted traffic only.
-
both Optional. Monitor for both received and transmitted traffic.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.