Configuring Port Mirroring; Port Mirroring Constraints; Port Mirroring Cli Commands; Port Mirroring Configuration Examples - Avaya G250 Administration

Configuring advanced switching

Configuring port mirroring

Port Mirroring copies all received and transmitted packets (including local traffic) from a source
port to a predefined destination port, in addition to the normal destination port of the packets.
Port Mirroring, also known as "sniffing," is useful in debugging network problems.
Port mirroring allows you to define a source port and a destination port, regardless of port type.
For example, a 10 Mbps and a 100 Mbps port can form a valid source/destination pair. You
cannot, however define the port mirroring source and destination ports as the same source and
destination port.
You can define one source port and one destination port on each G250/G350 for received (Rx),
transmitted (Tx), or transmitted and received (both) traffic.

Port mirroring constraints

You cannot use the LAN port on the G350 front panel or the WAN Fast Ethernet port on the
G250 and G350 front panels in port mirroring.

Port mirroring CLI commands

The following commands are used to configure port mirroring on the G250/G350. For more
information about these commands, see Avaya G250 and Avaya G350 CLI Reference,
03-300437.
Use the set port mirror command to define a port mirroring pair in the switch.
●
Use the show port mirror command to display mirroring information for the switch.
●
Use the clear port mirror command to cancel port mirroring.
●

Port mirroring configuration examples

The following example creates a port mirroring pair in the G350:
G350-001(super)# set port mirror source-port 6/2 mirror-port 6/10 sampling always
direction rx
Mirroring rx packets from port 6/2 to port 6/10 is enabled
320 Administration for the Avaya G250 and Avaya G350 Media Gateways