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No: 4 – Four units connected
MAC_ADDRESS:– Displaying all the MAC addresses of the units connected on the ring/bus
TOPOLOGY: Displaying type of connection (In this case a Ring connection is established)
NODE_ROLE: MASTER – Displays if the unit is either the Master or Slave on the ring/bus. Master
is determined by the lowest MAC address
RING_P0: Indicates the function of port 3 and its relation to the ring/bus. There are four possibilities;
1.
M_port – Master Port
2.
S_port – Slave Port
3.
B_Port – Backup Port
4.
U_Port – Unconnected Port
RING_P1: Indicates the function of port 4 and its relation to the ring/bus. There are four possibilities;
1.
M_port – Master Port
2.
S_port – Slave Port
3.
B_Port – Backup Port
4.
U_Port – Unconnected Port
<-local: This points to the unit that the USB cable is plugged into on the ring/bus.
PAGE 28
OPTICAL SYSTEMS DESIGN
FIGURE 25: TOPOLOGY CHECK
OSD2258 OPERATOR MANUAL
DOC ID: 10119701
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