Edge-Core ECS4660-28F Management Manual page 1230

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| Port Mirroring Commands

Local Port Mirroring Commands

show port monitor

No mirror session is defined.

When enabled for an interface, default mirroring is for both received

and transmitted packets.

Interface Configuration (Ethernet, destination port)

You can mirror traffic from any source port to a destination port for

real-time analysis. You can then attach a logic analyzer or RMON probe

to the destination port and study the traffic crossing the source port in

a completely unobtrusive manner.

Set the destination port by specifying an Ethernet interface with the

configuration command, and then use the port monitor

command to specify the source of the traffic to mirror.

When mirroring traffic from a port, the mirror port and monitor port

speeds should match, otherwise traffic may be dropped from the

monitor port. When mirroring traffic from a VLAN, traffic may also be

dropped under heavy loads.

Note that Spanning Tree BPDU packets are not mirrored to the target

You can create multiple mirror sessions, but all sessions must share the

same destination port.

The destination port cannot be a trunk or trunk member port.

The following example configures the switch to mirror all packets from port

Console(config)#interface ethernet 1/5

Console(config-if)#port monitor ethernet 1/6 both

Console(config-if)#

This command displays mirror information.

show port monitor [interface | vlan vlan-id |

mac-address mac-address]

interface - ethernet unit/port (source port)

unit - Unit identifier. (Range: 1)

port - Port number. (Range: 1-28)

vlan-id - VLAN ID (Range: 1-4094)

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