L-IP User Manual 137 LOYTEC
Version 6.1 LOYTEC electronics GmbH
bit0: 0 if twin router monitoring is enabled, 1 if twin router monitoring is disabled.
Twin router monitoring can be disabled only manually (e.g. by disabling the object).
bit1: 0 if the device is the secondary router, 1 if the device is the primary router.
bit2: 0 if the device is in normal operation mode (primary -> active, secondary ->
inactive), 1 if the secondary router has taken over (primary -> inactive, secondary ->
active).
bit3: 0 if the device is in normal operation, 1 if the device is currently negotiating with
its twin router to determine which one is primary and which secondary router.
bit4: 0 if the twin router address is not known yet, 1 if the twin router address is known.
If the twin router address is not yet known CEA-852 monitoring (bit9) and the
forwarding warnings and errors (bit10-bit13) are not applicable.
bit8: 1 if the twin router is not reachable via the CEA-709 segment (local segment), 0
otherwise.
bit9: 1 if the twin router is not reachable via the IP-852 channel (IP backbone), 0
otherwise.
bit10: 1 if the packets forwarded from the CEA-709 to the CEA-852 side on the local
device is significantly lower than on the remote twin router. 0 if the router is working
properly.
bit11: 1 if the packets forwarded from the CEA-852 to the CEA-709 side on the local
device is significantly lower than on the remote twin router. 0 if the router is working
properly.
bit12: 1 if the local device does not forward any packets from the CEA-709 to the
CEA-852 side, while the remote twin router does. 0 if the router is working properly.
bit13: 1 if the local device does not forward any packets from the CEA-852 to the
CEA-709 side, while the remote twin router does. 0 if the router is working properly.
9.7.5 Channel Monitor Objects
Figure 137 shows the Channel Monitor Object functional block. This functional block is
responsible for network monitoring (see Section 9.2.3). There is one object for each channel
the L-IP Redundant is attached to: The channel monitor object with index 0 corresponds to
the CEA-709 side of the L-IP Redundant, while the object with index 1 corresponds to the
CEA-852/IP side of the L-IP Redundant. Each object has the following network variables: