USER’S GUIDE
268 CyberSWITCH
B
RIDGE
M
ODE
OF
O
PERATION
C
ONFIGURING
THE
B
RIDGE
M
ODE
OF
O
PERATION
U
SING
CFGEDIT
1.
Select Mode of Operation from the Bridging menu.
2.
Select the bridge mode of operation. The unrestricted bridge mode is the default.
B
RIDGE
M
ODE
OF
O
PERATION
C
ONFIGURATION
E
LEMENTS
B
RIDGE
M
ODE
The forwarding method that the bridge will use to distribute LAN packets to the remote sites and
to the LAN ports of the CyberSWITCH. The default value is unrestricted bridging.
B
RIDGE
M
ODE
OF
O
PERATION
B
ACKGROUND
I
NFORMATION
Selecting the bridge mode of operation allows you to determine the forwarding method that the
bridge will use to distribute LAN packets to the remote sites and to the LAN ports of the system.
The two possible modes of operation are the Unrestricted Bridge Mode and the Restricted Bridge
Mode.
Note:
If the mode of operation is changed, any previously defined filters will be deleted. Any
previously defined protocol definitions will remain unchanged.
The following two sections provide further details for each bridge mode of operation.
U
NRESTRICTED
B
RIDGE
M
ODE
In general, Unrestricted Mode forwards all packets, unless specified otherwise through a bridge
filter. If the Unrestricted Bridge Mode is selected, the following packet forward possibilities exist:
•
If the packet matches a discard filter, it is discarded.
•
If the packet matches a connect filter, it is connected and forwarded to the members of the dis-
tribution list.
•
If the packet matches no filter, the packet is forwarded. The specific forwarding action depends
upon whether or not the destination is known. (See following descriptions.)
No Filter Match - Destination Known
If the destination is known and the corresponding device is on the Known Connect List, the
connection is made and the packet is then forwarded to the specific destination.
If the device is not on the Known Connect list, the packet is sent to all current connections.
No Filter Match - Destination Unknown
The packet is sent to all current connections.
