3com WX1200 User Manual

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clear security 12-restrict
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The following command clears all dynamic forwarding database entries 
that match all VLANs:
WX4400# clear fdb dynamic
success: change accepted.
The following command clears all dynamic forwarding database entries 
that match ports 3 and 5:
WX4400# clear fdb port 3,5
success: change accepted.
See Also
„
„
clear security 
12-restrict
Removes one or more MAC addresses from the list of destination MAC 
addresses to which clients in a VLAN are allowed to send traffic at Layer 2. 
Syntax —
 clear security 12-restrict vlan vlan-id 
[permit-mac mac-addr [mac-addr]|all]
„
vlan-id
 — VLAN name or number. 
„
permit-mac
 — List of MAC addresses. MSS no longer allows clients
mac-addr
in the VLAN to send traffic to the MAC addresses at
[
mac-addr
]
Layer  2. 
„
all
 — Removes all MAC addresses from the list. 
Defaults — If you do not specify a list of MAC addresses or allall 
addresses are removed.
Access — Enabled.
History —Introduced in MSS Version 4.1.
Usage — If you clear all MAC addresses, Layer 2 forwarding is no longer 
restricted in the VLAN. Clients within the VLAN will be able to 
communicate directly.
To clear the statistics counters without removing any MAC addresses, use 
the clear security l2-restrict counters command instead.