Mirroring - Draytek VigorSwitch P2261 User Manual

2 . 3 . 7 1 M i r r o r i
2 . 3 . 7 1 M i r r o r i
You can mirror traffic from any source port to a target port for real-time analysis. You can
then attach a logic analyzer or RMON probe to the target port and study the traffic crossing
the source port in a completely unobtrusive manner.
Function name:

Mirroring

Function description:
The function is used to monitor the traffic of the network. For example, we assume that
Port A and Port B are Monitoring Port and Monitored Port respectively, thus, the traffic
received by Port B will be copied to Port A for monitoring.
Parameters description:
Port to mirror to
Port
Mode
VigorSwitch P2261 User's Guide
n g
n g
Port to mirror also known as the mirror port. Frames from
ports that have either source (rx) or destination (tx)
mirroring enabled are mirrored on this port. Disabled
disables mirroring.
The logical port for the settings contained in the same row.
Select mirror mode.
Rx only Frames received on this port are mirrored on the
mirror port. Frames transmitted are not mirrored.
Tx only Frames transmitted on this port are mirrored on the
mirror port. Frames received are not mirrored.
Disabled Neither frames transmitted nor frames received are
mirrored.
Enabled Frames received and frames transmitted are
mirrored on the mirror port.
Note: For a given port, a frame is only transmitted once. It
is therefore not possible to mirror Tx frames on the mirror
port. Because of this, mode for the selected mirror port is
limited to Disabled or Rx only.
161