Port Mirroring

Only the OnDemand Switch 2 platform supports port mirroring.   

Port Mirroring enables LinkProof to duplicate traffic from one physical port on the device to another physical port on the same device. This is useful, for example, when an Intrusion Detection System (IDS) device is connected to one of the ports on the LinkProof device. You can configure port mirroring for received traffic only, for transmitted traffic only, or for both. You can also decide whether to mirror the received broadcast packets.

Notes

>>	The OnDemand Switch 2 platform supports port mirroring of up to four ports.

>>	The OnDemand Switch VL platform does not support port mirroring.

>>	It is possible to copy traffic from one input port to multiple output ports, or from many input ports to one output port.

>>	The input port, from which traffic is mirrored must be an interface with a configured IP address, or an interface that is part of a VLAN (regular or switched) with a configured IP address.

>>	The output port, to which the traffic is mirrored, cannot have an IP address, or be part of a VLAN (Regular or Switched) with a configured IP address.

>>	When mirroring traffic from a port that is a part of a switched VLAN, traffic between hosts on this VLAN is switched by the ASICs of the device. This type of traffic is not mirrored.

>>	When mirroring traffic is received on a port which is a part of switched VLAN and the mirrored port is configured to mirror received broadcast packets, the packets are mirrored from all ports on the switched VLAN.

>>	Traffic generated by the device itself, such as connectivity checks or management traffic, is not mirrored.

>>	Regular VLAN traffic with a destination multicast MAC is not always mirrored.

To configure port mirroring

1.	Select Device > Port Mirroring. The Port Mirroring Table pane is displayed.

2.	Click Create. The Port Mirroring Table Create pane is displayed.

3.	Configure the parameters; and then, click Set.

 

Table 48: Port Mirroring Parameters

Parameter	Description
Input Port	The port from which the traffic is mirrored.
Output Port	The port to which traffic is mirrored.
Receive/Transmit	Select the direction of traffic to be mirrored. Values: • Transmit and Receive • Receive Only • Transmit Only Default: Transmit and Receive
Promiscuous Mode	Specifies whether the device copies all traffic from the input port to the output port or copies only the traffic that is destined to the input port. Values: • Enabled — All traffic is copied to the output port. • Disabled — Only traffic destined to the input port is copied. Default: Enabled
Backup Port	The port for output when the output port is down. Default: 0 — Specifies no backup port