C
HAPTER
7
| Address Table Settings
Configuring MAC Address Mirroring
– 233 –
3. Select the method by which to clear the entries (i.e., All, MAC Address,
VLAN, or Interface).
4. Enter information in the additional fields required for clearing entries by
MAC Address, VLAN, or Interface.
5. Click Clear.
Figure 98: Clearing Entries in the Dynamic MAC Address Table
CONFIGURING MAC ADDRESS MIRRORING
Use the MAC Address > Mirror (Add) page to mirror traffic matching a
specified source address from any port on the switch to a target port for
real-time analysis. You can then attach a logic analyzer or RMON probe to
the target port and study the traffic crossing the source port in a
completely unobtrusive manner.
CLI REFERENCES
â—† "Local Port Mirroring Commands" on page 1009
COMMAND USAGE
â—† 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.
â—† All mirror sessions must share the same destination port.
â—† Spanning Tree BPDU packets are not mirrored to the target port.
â—† When mirroring port traffic, the target port must be included in the
same VLAN as the source port when using MSTP (see "Spanning Tree
Algorithm" on page 235).
â—† When mirroring VLAN traffic (see "Configuring VLAN Mirroring" on
page 224) or packets based on a source MAC address, the target port
cannot be set to the same target ports as that used for port mirroring
(see "Configuring Local Port Mirroring" on page 156).
â—† When traffic matches the rules for both port mirroring, and for
mirroring of VLAN traffic or packets based on a MAC address, the
matching packets will not be sent to target port specified for port
mirroring.
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