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Directed Switch Mode Single Uplink Port
For models with two uplink ports (copper or fiber), the data traffic on the additional
uplink port (F2) is also forwarded to port F1.
Directed Switch Mode Dual Uplink Ports
When models with two uplink ports are configured for Directed Switch Mode and
Uplink Redundancy (per DIP-switches 3 and 4), traffic is forwarded to both the
primary and secondary uplink ports. The secondary port will block all traffic while
the primary port is active. When the primary port goes down, the secondary port
will be active and all traffic will be forwarded out the secondary port (F2).
Directed Switch Mode with Uplink Redundancy
Dual Device Mode
Dual Device Mode is only supported on models with two uplink ports.
When configured for Dual Device Mode, the module is configured as two logically
independent Layer 2 switches. Port F1 is associated with ports P1 and P2 and Port
F2 is associated with ports P3 and P4. Data flow will follow MAC address mapping.
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Dual Device Mode
Configured for Dual Device Mode and Directed Switch Mode, the traffic from ports P1
and P2 is only forwarded to uplink port F1 and ports P3 and P4 are only forwarded
to uplink port F2. This prevents broadcast traffic from flooding other network ports.
Incoming traffic from F1 and F2 follows MAC address mapping.
Dual Device with Directed Switch Mode
SW3 and SW4: Uplink Redundancy
Uplink redundancy mode is only supported on models with two uplink ports.
The modes are described with MAC learning enabled. When MAC learning is
disabled, the module will send data to all ports.
SW3
SW4
1 Uplink Port
2 Uplink Ports
Function
DOWN
DOWN
Reserved
Switch Mode (factory default)
DOWN
UP
Reserved
Switch Mode (factory default)
UP
DOWN
Reserved
Uplink Redundancy Mode - no return to primary (F1)
UP
UP
Reserved
Uplink Redundancy Mode - return to primary (F1)
Uplink Redundancy
When configured for Uplink Redundant Mode “no return to primary”, the uplink
ports operate as redundant links. A fault on the primary Port F1, will cause a fail
over to the secondary Port F2 within 50msec. Port F1 will become the secondary
port once the failure condition has been restored because “no return to primary”
has been selected.
