C
HAPTER
5
| Interface Configuration
Port Configuration
– 156 –
Figure 34: Displaying Local Port Mirror Sessions
CONFIGURING REMOTE
PORT MIRRORING
Use the Interface > RSPAN page to mirror traffic from remote switches for
analysis at a destination port on the local switch. This feature, also called
Remote Switched Port Analyzer (RSPAN), carries traffic generated on the
specified source ports for each session over a user-specified VLAN
dedicated to that RSPAN session in all participating switches. Monitored
traffic from one or more sources is copied onto the RSPAN VLAN through
IEEE 802.1Q trunk or hybrid ports that carry it to any RSPAN destination
port monitoring the RSPAN VLAN as shown in the figure below.
Figure 35: Configuring Remote Port Mirroring
CLI REFERENCES
â—† "RSPAN Mirroring Commands" on page 1020
COMMAND USAGE
â—† Traffic can be mirrored from one or more source ports to a destination
port on the same switch (local port mirroring as described in
"Configuring Local Port Mirroring" on page 154), or from one or more
source ports on remote switches to a destination port on this switch
(remote port mirroring as described in this section).
Source Switch
Intermediate SwitchIntermediate Switch
Destination Switch
Source Port Destination PortUplink Port Uplink Port
Uplink Port Uplink Port
Ingress or egress traffic
is mirrored onto the RSPAN
VLAN from here.
Tagged or untagged traffic
from the RSPAN VLAN is
analyzed at this port.
RPSAN VLAN
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