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If a network port that supports autonegotiation is connected to a network port that does not support autonegotiation, you can interconnect in both half-duplex and full-duplex modes.
The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal.
When using a script to back up U2000 data, the backup speed is fast because the backup file is small.
Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?
The last 256 columns in the OTN frame structure are the FEC regions for forward error correction.
Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple choice).
Which of the following can be configured as the monitoring time for network element performance events?
QinQ technology can be used when multiple users need to share the same VCTRUNK and use the same VLAN ID.
Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
output networks require higher costs than belt networks, but provide a more reliable management channel.
When setting up LCAS mode, follow these principles:
1. If both ends of the device are Huawei devices, please set it to "Standard Mode".
2. If a Huawei device is interconnected with a third-party device, set the interconnect device to the same mode according to the mode supported by the third-party device.
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().
In the frame structure of the SDH signal, there are large overhead bytes for operation, management, and maintenance (OAM). Overhead bytes account for all bits () of the entire frame and greatly enhance the monitoring capabilities of the network.
WDM transmits optical signals multiplexed at multiple rates (wavelengths) through a single optical fiber, and the digital signals carried by these optical signals must have the same rate and data format
When the SNCP ring consisting of four Optis OSN 2500 devices has a rate of 25 Gbt/s, the network's service answer stars can carry up to ()2Mt/s Signal.
In the SDH optical synchronous transmission system, which of the following bytes is used to transmit the quality and weight and usage information of the clock source?
PDM uses a polarization beam splitter to divide the laser into two vertical directions: x and y.
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.
The TAG attribute cannot be set for the internal port VCTRUNK of the single board on the NMS.
Which of the following statements about the advantages of OTN are incorrect?
Optical module parameter "L-64.2" in "2" indicates which of the following working windows?
When configuring VLAN-based service types, which of the following features must be enabled on the port?