PWE3, as an end-to-end Layer 2 service bearing technology, provides a point-to-point L2VPN service in a public network, and transmits various services (such as Ethernet, TDM services) through a packet-switched network (PSN), also provides end-to-end virtual link simulation at the boundary of the PSN network.

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The service signals that the HUNQ2 board cannot transmit are:

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In the extended SSM ring network dual BITS clock protection scenario, in order to prevent the clock signal from forming a loop, you only need to configure the external clock source and internal clock source ID of the network element connected to the active BITS, and the network element connected to the standby BITS does not need to configure the internal clock ID.

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The network element addresses used by each layer in the HWECC protocol stack are all network element IDs. The length of the network element ID is () bit, the highest () bit is called the subnet number (or extended ID), and the low () bit is called the basic ID.

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It mainly completes the point-to-point voice communication between neighboring stations, without dialing, just off-hook. This PCM service is called:

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The size of the crossover capacity of the NG SDH system is determined by the crossover single board, so the crossover capacity upgrade is completed by replacing the crossover board.

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In OSN 1800, the LOA single board can implement the Ethernet Layer 2 scheduling function.

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G.652 DCM-C parameter C indicates how much KM of dispersion produced by G.652 can be compensated?

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How much dBm is 100mw approximately equal to?

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When testing the overload point and sensitivity of the IN port of an OTU board, which of the following is not needed?

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