Owner's Manual

276 | Chapter 10. FDB
NETGEAR 8800 User Manual
You clear dynamic FDB entries by targeting:
• Specified MAC addresses
• Specified ports
• Specified VLANs,
• All blackhole entries
To clear dynamic entries from the FDB, use the following command:
clear fdb {<mac_addr> | ports <port_list> | vlan <vlan_name> | blackhole}
You clear permanent FDB entries by targeting:
• All permanent entries
• Specified MAC addresses
• Specified VLANs
• All blackhole entries
To clear permanent entries from the FDB, use the following command:
delete fdbentry [all | <mac_address> [vlan <vlan name>]
Managing Multiple Port FDB Entries
The following command begins accepting unicast MAC addresses with multiple ports on all
platforms:
XCM8806 # create fdbentry 00:00:00:00:00:01 "Default" port 1,2
Prior to this release, these platforms would report the following error:
Error: Does not support multiple port FDB entries for uni-cast MAC address!
When the port list contains ports on different slots, the following error is generated:
Error: Multiple ports must be on the same slot for unicast MAC FDB entries.
When an original series port is listed with a multiple port list, the following error is generated:
XCM8806 # create fdbentry 00:00:00:00:00:01 "Default" port 3,4
Error: Slot 3 does not support multiple port FDB entries for uni-cast MAC
address
Supporting Remote Mirroring
The remote mirroring feature copies select traffic from select ports and VLANs and sends the
copied traffic to a remote switch for analysis. The mirrored traffic is sent using a VLAN that is
configured for this purpose. For more information, see
Mirroring on page 138.
Transit switches are the switches between the source switch where ports are mirrored and
the destination switch where the mirrored traffic exits the network to an network analyzer or
network storage device. Because the mirrored traffic is an exact copy of the real traffic, a