Configuring a Port Mirroring Source

Note

If an interface participates in some VLAN and is a LAG (Link Aggregation Group) member, this VLAN cannot be assigned as a source VLAN for a Monitor session. At the same time, if an interface participates in some VLAN and this VLAN is assigned as a source VLAN for a Monitor session, the interface can be assigned as a LAG member.

From the Multiple Port Mirroring page, click Configure Source to display the Source Configuration page.

Configure the following fields:

Multiple Port Mirroring—Source Configuration

Field	Description
Session ID	The port mirroring session ID. The number of sessions allowed is platform specific.
Type	The type of interface to use as the source: None: The source is not configured. Remote VLAN: The VLAN configured as the RSPAN VLAN is the source. In an RSPAN configuration, the remote VLAN is the source on the destination device that has a physical port connected to the network traffic analyzer. VLAN: Traffic to and from a configured VLAN is mirrored. In other words, all the packets sent and received on all the physical ports that are members of the VLAN are mirrored. Interface: Traffic is mirrored from one or more physical ports on the device.
Remote VLAN	The VLAN that is configured as the RSPAN VLAN.
VLAN ID	The VLAN to use as the source. Traffic from all physical ports that are members of this VLAN is mirrored. This field is available only when the selected Type is VLAN.
Available Source port(s)	The physical port or ports to use as the source. To select multiple ports, hold down [Ctrl] and click each port. This field is available only when the selected Type is Interface.
Direction	The direction of traffic on the source port (or source ports) or VLAN that is sent to the specified destination. A source VLAN mirrors all received and transmitted packets to the destination. Possible values for source ports are: Tx and Rx: Both ingress and egress traffic Rx: Ingress traffic only Tx: Egress traffic only