Configuring An Fspan Session - Cisco Catalyst 3750-X Software Configuration Manual

Chapter 32 Configuring SPAN and RSPAN

Configuring an FSPAN Session

Beginning in privileged EXEC mode, follow these steps to create a SPAN session, specify the source
(monitored) ports or VLANs and the destination (monitoring) ports, and configure FSPAN for the
session:
Command
Step 1 configure terminal
no monitor session {session_number | all |
Step 2
local | remote}
Step 3
monitor session session_number source
{interface interface-id | vlan vlan-id} [, | -]
[both | rx | tx]
OL-21521-01
Purpose
Enter global configuration mode.
Remove any existing SPAN configuration for the session.
For session_number, the range is 1 to 66.
Specify all to remove all SPAN sessions, local to remove all local
sessions, or remote to remove all remote SPAN sessions.
Specify the SPAN session and the source port (monitored port).
For session_number, the range is 1 to 66.
•
For interface-id, specify the source port or the source VLAN to
•
monitor.
For source interface-id, specify the source port to monitor. Only
•
physical interfaces are valid.
For vlan-id, specify the source VLAN to monitor. The range is 1
•
to 4094 (excluding the RSPAN VLAN).
A single session can include multiple sources (ports or
Note
VLANs) defined in a series of commands, but you cannot
combine source ports and source VLANs in one session.
(Optional) [, | -] Specify a series or range of interfaces. Enter a
•
space before and after the comma; enter a space before and after
the hyphen.
(Optional) Specify the direction of traffic to monitor. If you do
•
not specify a traffic direction, the SPAN monitors both sent and
received traffic.
both—Monitor both sent and received traffic. This is the default.
•
rx—Monitor received traffic.
•
tx—Monitor sent traffic.
•
You can use the monitor session session_number source
Note
command multiple times to configure multiple source ports.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
Configuring FSPAN and FRSPAN
32-25