User`s guide

Chapter 6 Virtual Network Interface Cards (vNICs) 99
■ When mirroring to a port connected to a network switch, you should use the
optional -mirror-mac=<mac-address> argument to target a specific hardware
address as the destination for the mirrored packets.
■ When mirroring to a vNIC, Oracle suggests that you use the -mac-address
option to specify a target device for the mirrored traffic.
■ Mirroring adds overhead due to duplicating packets on the mirror. You can
expect a negative affect on I/O module performance when mirroring is enabled.
The severity of the negative performance varies due to multiple factors including
(but not limited to) the number of packets being copied, the number of vNICs
being mirrored, and whether mirroring is occurring on unidirectional or
bidirectional traffic.
Syntax
vNIC mirroring for individual vNICs is configured through the set vnic command:
However, if you are using the option for mirroring all vNICs on a specific port, the
following commands are required:
Parameter Description
set vnic <vnic> -mirror=<vnic>|<ioport>
set vnic <vnic> -mirror-mac=<mac-address>
set vnic <vnic> -mirror-direction=<both|none|rxOnly|txOnly>
set ethernet-port <slot/port> -mirror-all-vnics=<vnic>|<ioport>
set ethernet-port <slot/port> -mirror-direction=<both|none|rxOnly|txOnly>
set ethernet-port <slot/port> -mirror-mac=<mac-address>
Parameter Description
set vnic <vnic> Specifies the vNIC in the format “name.server-profile-name”. For
example vn1.pubstest for the vNIC named vn1 that was created
in server profile “pubstest”
-mirror=<vnic|ioport> Specifies the output destination for the mirror, either a vNIC or a
physical Gigabit Ethernet port.
-mirror-mac=<mac address> For vNICs that are mirrored to a port, this qualifier specifies the
destination hardware address of the device that will receive the
mirrored traffic. By default, no MAC address is used.