Owner's Manual

282 Port Monitor Commands
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• All the frames are transmitted already tagged from the destination port.
General Restrictions:
• Ports cannot be configured as a group using the
interface range ethernet command.
NOTE: The Port Mirroring target must be a member of the Ingress VLAN of all Mirroring source ports.
Therefore, Multicast and Broadcast frames in these VLANs are seen more than once. (Actually N+1,
where N is the number of mirroring source ports). In addition, if there is more than a single VLAN, all
frames sent from the mirroring target port are tagged, regardless of the incoming frame state.
Example
The following example shows how traffic on port g8 (source port) is copied to port g1 (destination
port).
port monitor vlan-tagging
The port monitor vlan-tagging interface configuration command transmits tagged ingress mirrored
packets. To transmit untagged ingress mirrored packets, use the
no form of this command.
Syntax
port monitor vlan-tagging
no port monitor vlan-tagging
Default Configuration
Ingress mirrored packets are transmitted untagged.
Command Mode
Interface Configuration (Ethernet)
User Guidelines
There are no user guidelines for this command.
Example
The following example configures all ingress mirrored packets from port g9 to be transmitted as
tagged packets.
Console(config)# interface ethernet g1
Console(config-if)# port monitor g8
Console (config)# interface ethernet g9
Console (config-if)# port monitor vlan-tagging