Hirschmann RS20 User Manual page 44

Ring/Network Coupling
Figure 16: Two-Switch coupling: Selecting the port and enabling/disabling
operation
To avoid continuous loops, the Switch sets the port state of the coupling
port to "off" if you:
– switch off the operation setting 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 Configuration dialog):
See table on
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.
44
17 "Port settings for ring
4.2 Preparing a Ring/Network
ports".
UM Redundancy Configuration L2E
Coupling
Release 7.1 12/2011