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DES-7200 Configuration Guide Chapter 5 SPAN
Configuration
5.2.1 SPAN Session
One SPAN session is the combination of one destination port and source port.
You can monitor the received, transm
itted, and bi-directional frames of one or
multiple interfaces.
You can set up one or multiple SPAN sessions. Switched port and routed port
n one disabled port, but the SPAN does
tination and source ports. The show
allows you to show the operation
on does not take effect
e destination port is active.
5
can be configured with only one SPAN session. However, switched port, routed
port, and AP can be configured as source port and destination port. The SPAN
session does not affect the normal operation of the switch.
You can configure the SPAN session o
not take effect until you enable the des
monitor session session number command
status of the SPAN session. One SPAN sessi
immediately after the swtich is powered on until th
.2.2 Frame Type
5.2.2.1 Frame Direction
The SPA ion includes the following frame types:
d routing frames, and
each received frame is copied to the destination port. In one SPAN session, you
multiple source ports. Although
pped due to some reasons, for
oes not affect
the function of the SPAN.
All the fr the source port are copied to the destination port. In
one SPAN session, you can monitor the frames input from one or multiple
source p e from a port to the source port is dropped due to some
reasons, l not be sent to the destination port as well. Moreover, the
rt may change, for example,
chan
include the above mentioned two frames. In one SPAN
m/to one or
multiple source ports.
N sess
Received frames
Received frames include all known unicast frames an
can monitor the the frames inputted from one or
a frame inputted from the source port is dro
example, port security, it is still sent to the destination port. This d
Transmitted frames
ames sent from
orts. If a fram
the frame wil
format of the frames destined to the source po
routed frames, source MAC address, destination MAC address, VLAN ID and
TTL. Similarly, the format of the frames copied to the destination port will
ge.
Bi-directional frames
Bi-directional frames
session, you can monitor the frames received and transmitted fro
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