Where are the VLAN tags in Port mirroring on NetVanta 1560/ASE switches?
VLAN tags are not provided on the destination port of an ASE switch (this operates differently than in AOS products).
Therefore, all packets captured on the destination port are from all VLAN's mirrored from source ports.
To determine which VLAN a packet was captured from, use the show mac address command to display information for the source MAC address ( ex: 8c:dc:d4:2c:5b:36 ), as shown below:
#show mac add add ?
<mac_addr> 48 bit MAC address: xx:xx:xx:xx:xx:xx
#show mac add add 8c:dc:d4:2c:5b:36
Type VID MAC Address PortsDynamic 1 8c:dc:d4:2c:5b:36 GigabitEthernet 1/10
The output of the show mac address command displays the VID (VLAN ID) of the source MAC address. In the example above, you can see that the MAC address was from VLAN 1, on the Gig 1/10 interface.
For more information about configuring port mirroring, refer to Port Mirroring Configuration Using the GUI section of the Configuring Layer 2 Services in ASE configuration guide.
For more information about capturing traffic on a particular VLAN, refer to the Configuring a Source VLAN Using the GUI section of the Configuring Layer 2 Services in ASE configuration guide.