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QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
Which of the following is the steps to multiplex a low-speed service into a high-speed SDH service? (Multiple choice).
The receiver performs a BIP-8 check on unscrambled STM-16 frames. If the BIP8 check result XOR·∶, the value of the B1 byte contained in the next STM16 ring is 10001100, which indicates STM-16 There is a () bit error block in the axis.
EPL services use ports and bandwidth exclusively, and different users may need to share resources. Which of the following methods can be used to isolate user data?
During service configuration, which of the following service levels cannot be selected?
In the case of SNCP, the board selectively receives the service. Therefore, SNCP can protect services on the line.
Which of the following is the basic requirement of the DWDM system in the light source?
Which of the following layers define the protocols that control the network layer? The protocol for this layer applies to logical links, i.e. end-to-end connectivity between two devices.
LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK insertion and the conditions for automatic AS insertion are met, the LCK is inserted.
Configuring the EPLAN service as a ring is not recommended. If the EPLAN service is configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
Which of the following is the difference between an AU pointer and a TU pointer? (Multiple choice).
The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).
NE A and NE B are adjacent NE
If B3 and low-order errors occur in the A->B direction, and B1, B2, B3, and low-order errors occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).
Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).
Single-fiber bidirectional WDM systems use only one optical fiber to transmit optical signals in both directions at the same time. Light signals in both directions should be arranged at different wavelengths.
In the OSN550, the CXL slot contains a function board that integrates a system control and communication (SCC) unit, a cross-connecting unit, and a clock unit Depending on the functionality and access features provided by the OSN550, there are several types of dashboards
After configuring PDH on a per-net element basis, the full trace cannot be searched. Which of the following is a possible cause? (Multiple choice)
For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.
QinQ technology can be used when multiple users need to share the same VCTRUNK and use the same VLAN ID.
When using a script to back up U2000 data, the backup speed is fast because the backup file is small.
TESTED 25 Apr 2024