Fig. 3.3-2 Connection With The Ems Through Sdh Equipment - Zte Unitrans ZXMP M600 Technical Instructions

ZXMP M600 (V1.0) Technical Manual
The connection between the CWDM/ SDH nodes and the EMS is described
below:
1) For the CWDM equipment that does not serve as an element management access
node, its ETH1 or ETH2 interface on the NCP board of can be connected with
the Ethernet interface of the SDH equipment.
2) The Ethernet interface on the NCP board of the CWDM equipment that serves
as an access node for the EMS can be connected to the HUB.
3) The Ethernet interface of the SDH equipment that serves as an access node for
the EMS can be connected with the HUB.
4) The HUB is connected to the EMS.
Take a ring network as an example. The connection is shown in Fig. 3.3-2.
CWDM node 2
SDH node 2
Network cable

Fig. 3.3-2 Connection with the EMS Through SDH Equipment

The SDH nodes and CWDM nodes share the same EMS, ECC route and DCC
route.
Each SDH node is equivalent to a router that adopts the OSPF protocol while
each CWDM node is equivalent to a L2 switch. The SDH and CWDM nodes
form a local Ethernet at last. The network management information between the
EMS and CWDM node is transmitted through the DCC and ECC channels of
the SDH equipment.
SDH node 1
CWDM node 1
CWDM node 3
SDH node 3
Physical optical line
3-4
SDH node 4
CWDM node 4
Hub
Network
management system
Logic optical line