Legacy Open Mesh: Switches: Port Mirroring

Topic:

This article describes how to configure port mirroring on Open Mesh Switches.

Environment:

• Open Mesh Switches

Description

Port mirroring sends copies of packets seen on one or more ports to another port of a switch. Network administrators commonly use port mirroring to collect and analyze data on active networks and to diagnose or debug issues.

• All Open Mesh Switches support port mirroring.
• You can have up to four active, concurrent mirroring sessions on any single switch.
• You can use mirroring sessions in conjunction with Link Aggregation to mirror traffic from a LAG into another port for analysis.

Procedure

Navigation

1. Navigate to Manage ? Switches and select a switch.

2. Click Port Settings.

Figure 1: Port settings

Mirroring Ports

1. Select the source and destination ports by checking the boxes on the left-most column of the specific ports.

Figure 2: Port selection

2. Click Mirror.

Figure 3: The Mirror button

3. Select which port you want the traffic to be mirrored from in the Destination ID drop-down. Other ports will automatically become sources.

Figure 4: Destination Port ID.

4. On each source port, specify whether it will transmit Tx only, Rx only, or both types of traffic.

Figure 5: Source port IDs & transmission types

5. Click OK. The port's mirror status will display in the Mirroring column under the Port Settings. Each session will be color-coded.

Figure 6: Two mirroring sessions

Unmirroring Ports

1. Select the checkbox next to a mirror port. You can select multiple ports at a time.

Figure 7: Selecting ports

2. Click Unmirror.

Figure 8: The Unmirror button

3. A dialog box will appear. Click OK.

Figure 9: Dialog prompt for removing ports

Important considerations

• If you unmirror the destination port, the entire mirror session is torn down.
• If you unmirror any port in a two-port mirror, the entire mirror session will be torn down.
• You cannot mirror ports that are also being aggregated with each other.
• You can mirror one or more ports of an aggregation into a port that is not part of an aggregate group.