Edge-Core ECS4620-28T Quick Start Manual page 1294

Chapter 14
| Port Mirroring Commands
Local Port Mirroring Commands
vlan-id - VLAN ID (Range: 1-4094)
mac-address - MAC address in the form of xx-xx-xx-xx-xx-xx or
xxxxxxxxxxxx.
acl-name – Name of the ACL. (Maximum length: 16 characters, no spaces or
other special characters)
Default Setting
◆
No mirror session is defined.
◆
When enabled for an interface, default mirroring is for both received and
transmitted packets.
◆
When enabled for a VLAN or a MAC address, mirroring is restricted to received
packets.
Command Mode
Interface Configuration (Ethernet, destination port)
Command Usage
◆
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
the source of the traffic to mirror.
◆
All VLAN mirror sessions must share the same target port, preferably one that is
not a member of the source VLAN.
◆
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.
◆
When VLAN mirroring and port mirroring are both enabled, the target port can
receive a mirrored packet twice; once from the source mirror port and again
from the source mirror VLAN.
◆
When mirroring traffic from a MAC address, ingress traffic with the specified
source address entering any port in the switch, other than the target port, will
be mirrored to the destination port.
◆
Spanning Tree BPDU packets are not mirrored to the target port.
◆
When mirroring VLAN traffic or packets based on a source MAC address, the
target port cannot be set to the same target port as that used for basic port
mirroring.
port monitor
– 464 –
interface
command to specify