A.POWER_DIFF_OVER

B.MUT_LOS

C.R_LOS

D.R_LOF

A.Configure QoS

B.Configure the UNI port

C.Configure MPLS tunnel

D.Configure port DCN

A.The internal data services carried by PWE3 are visible to the core network.

B.PWE3 technology belongs to the second layer VLL solution

C.For PE3 emulation of Ethernet services, PW control words can be manually configured on the PE.

D.PRE3 technology provides ATM, Ethernet, and TDM services with end-to-end virtual link emulation at the PS network boundary.

A.Equipment alarms and performance events

B.Operation log of the network management

C.Configuration data of the NE and the board

D.Running status data of the NE and the board

A.Extended ECC recommends to use manual basis, which reduces mutual negotiation between network elements.

B.Extended ECC is divided into automatic extended ECC and manual extended ECC. One network element can only support one mode at the same time. These two methods cannot be directly docked.

C.The scale of the extended ECC network (the sum of the server and the client) must not exceed 8.

D.In the automatic extended ECC mode, you need to connect the Ethernet ports of the two NEs with a direct-connected network cable (or a standard network cable through B), extend the ECC, and specify the server and client.