3com S7906E Manuel De Montage

 

1-4 

Figure 1-3 Layer 3 remote port mirroring implementation 

 

 

On the source device, packets of the mirroring port (or CPU) are mirrored to the tunnel interface that 

serves as the monitor port in the remote source mirroring group, and then transmitted to the destination 

device through the GRE tunnel. The destination device receives the mirrored packets from the other 

tunnel interface that serves the mirroring port in the remote destination mirroring group, and then 

forwards the packets to the monitor port in the remote destination mirroring group. In this way, the data 

monitoring device connected to the monitor port on the destination device can monitor and analyze 

packets passing through the mirroring port (or CPU) on the source device.  

 

z 

For more information about GRE tunnels, see Tunnel Configuration in the IP Services Volume.  

z 

Only the SD and EB series LPUs support Layer 3 remote port mirroring.  

 

Configuring local port mirroring is to configure local mirroring groups.  

A local mirroring group comprises one or multiple mirroring port and one monitor port that are located 

on a same device.  

Complete these tasks to configure a local mirroring group: 

Required 

Required 

Required 

 

Generally, a port can belong to only one mirroring group. On an SD or EB series LPU, however, a port 

can be assigned to two mirroring groups as a mirroring port.