Hirschmann RS20 User Manual page 76

Ring/Network Coupling
The displays in the "Information" frame mean:
– "Redundancy guaranteed": If the main line no longer functions, the
redundant line takes over the function of the main line.
– "Configuration failure": The function is incomplete or incorrectly
configured.
To avoid continuous loops, the Switch sets the port state of the coupling
port to "off" if you::
– switch off operation or
– change the configuration
while the connections are in operation at these ports.
Note: The following settings are required for the coupling ports (you
select the Basic Settings:Port Configurationdialog):
See table 3 on page 30.
Note: If VLANs are configured, set the coupling and partner coupling
ports' VLAN configuration as follows:
– in the dialog Switching:VLAN:Port Port VLAN ID 1 and „Ingress
Filtering" deactivated
– in the dialog Switching:VLAN:Static VLAN-Membership U
(Untagged)
Note: If you are operating the Ring Manager and two-Switch coupling
functions at the same time, there is the possibility of creating a loop.
Redundancy mode
 In the "Redundancy Mode" frame, select
– "Redundant Ring/Network Coupling" or
– "Extended Redundancy".
76
5.2 Preparing a Ring/Network
(see figure 33)
UM RedundConfig L2P
Release 8.0 05/2013
Coupling