Administrator Guide

source session uses a separate reserved VLAN to transmit mirrored packets (mirrored source-session
traffic is shown with an orange or green circle with a blue border).
The reserved VLANs transport the mirrored traffic in sessions (blue pipes) to the destination analyzers in
the local network. Two destination sessions are shown: one for the reserved VLAN that transports
orange-circle traffic; one for the reserved VLAN that transports green-circle traffic.
Configuring Remote Port Mirroring
Remote port mirroring requires a source session (monitored ports on different source switches), a
reserved tagged VLAN for transporting mirrored traffic (configured on source, intermediate, and
destination switches), and a destination session (destination ports connected to analyzers on destination
switches).
Configuration Notes
When you configure remote port mirroring, the following conditions apply:
• You can configure any switch in the network with source ports and destination ports, and allow it to
function in an intermediate transport session for a reserved VLAN at the same time for multiple
remote-port mirroring sessions. You can enable and disable individual mirroring sessions.
• BPDU monitoring is not required to use remote port mirroring.
• A remote port mirroring session mirrors monitored traffic by prefixing the reserved VLAN tag to
monitored packets so that they are copied to the reserve VLAN.
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Port Monitoring