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Where in the L2/L3 node is the VLAN in the Layer 2 header stripped in the packet sent by the base station in the LTE solution?
If the E1 interface board D75S is not plugged into the OSN3500 hardware, the indicator on PQ1 will light up red
The path method to create Och does not need to search the path on the network management, it can be found in the network management service management, and the single-site method must first start the search
Which of the following descriptions about the reasons for the continuous adjustment of network element pointers is correct?
Which item is wrong about the description of PTN network MC-PWAPS protection features?
A certain wavelength division system is configured with the 1st to 20th waves, using the NS4 single board, and testing the M40 output port with a spectrum analyzer during commissioning. It is found that the optical power of the 20th wave
is significantly lower than the other 19th waves. What is the possible reason? ?
CAR is deployed on PTN equipment. Which of the following descriptions is wrong?
When performing single-site commissioning of SDH equipment, it is necessary to check the single-site hardware: including cabinet and subrack installation inspection, power line resistance measurement, cable layout specification
inspection, single-board appearance inspection, and some single-board inspections. DIP jumper check
The frame rate of STM-1, STM-4, STM-16, STM-64 signals are all the same 8000 frames/sec.
When configuring electrical cross-connect services on NG WDM equipment, the client-side service types at both ends of a bidirectional service must be consistent.
When it is found that the local end reports the ETH_LOS alarm, the fault can be located by the switch-back method. If the alarm disappears after the ODF loops back to the local end, which of the following may be
the cause?
During the debugging of the SDH system, if the E1 port reports a T-ALOS alarm, which of the following actions are meaningful?
When the data is forwarded by the PTN device, when the value of the TYPE field of the Ethernet header is OxO8O0, which protocol is the encapsulated inner packet?
Any service cross-connect can only be configured in inter-board cross-connect, and does not require the participation of XCS boards
The router works on the third layer (network layer) of the TCP/IP protocol stack. Which of the following is the main job it completes?
In the OSN6800 subrack, when the OTU is inserted in the 17th slot, electrical layer scheduling can be realized
Which of the following ways does the Inspector inspection tool support adding network elements?
If an error occurs in the SDH network, the service signal recovered after the signal is decapsulated must have an error.
Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address prefix in different VPNs in the BGP protocol?
Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer?
In the NG-WDM system, which of the following boards supports optical line protection?
In PTN, LSP is created statically. Which items are correct in the following description about LSP creation?
In the PTNLTE non-load sharing scheme, the main L3 configuration is used to configure the route tracking multi-hop BFD scheme to prevent loops. Which of the following configurations needs to be performed?
Which of the following items are the main functions of the U2000 network management?
PTN can support in-band DCN. At this time, the port needs to enable the DCN function. Therefore, in CES service, PTN setup cannot be managed by in-band
DCN.
Arrayed waveguide grating optical multiplexer and demultiplexer has the advantages of small wavelength interval, large number of channels, flat passband, etc. It is very suitable for ultra-high-speed, large-capacity wavelength division
multiplexing systems.
Set up the alarm to report automatically, and report the alarm on the device side immediately after the alarm is generated. The alarm board pops up on the network management system. The user can view the alarm information in the alarm board, and does not need to
actively search for words. Unnecessary alarms can be set to not be automatically reported. At this time, the alarm will no longer be reported to the network, even if the synchronization operation is performed.
In order to support the self-opening of the base station, the DHCP Relay function is deployed in the PTN LTE bearer network. Which of the following descriptions is wrong?
In Huawei's PTN-LTE solution, which of the following FRR technologies have been deployed?
Which of the following statements about the internal port attributes of an Ethernet board is incorrect?
In the field record of VRRP technology used in PTN network, what factors are included in the final election result of VRRP Master?
The working mode of the port determines the flow control mode of the port. Which of the following flow control modes can be used when the operating mode is 100 Mbit/s full duplex
After a certain distance transmission in the wavelength division system, the optical signal-to-noise ratio of the signal at the receiving end will decrease to a certain extent. The main reason is which of the following?
Which of the following are the possible reasons for the disconnection of network elements?
During device initialization and commissioning, which of the following configuration descriptions is incorrect?
In the SDH system, we can use the instrument to test the input jitter tolerance of the STM-N interface. Which of the following instruments can complete this function?
Regarding the comparison of Raman amplifiers with EDFAs, which of the following statements is false?
TESTED 26 Apr 2024