Which of the following alarms will be reported when a fiber cut test is performed on a common MSP ring?
Which of the following descriptions about the possible reasons for PTN upgrade loading or activation failure are correct?
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
DCM optical power debugging requires the input of DCM to be no greater than which of the following values?
When creating a PTN tunnel, you can set the priority of the tunnel. There are 0, 1, and 7. The larger the value, the higher the priority.
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.
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.
Which of the following is the destination MAC address of the Layer 2 header of the data received by the PTN960 from the LTE base station?
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?
Which of the following operations need to be done before querying the bit error and optical power on the tube, otherwise the corresponding data cannot be queried?
Which of the following types of protection is electrical layer protection?
The IP address of the interconnection interface generally uses a 30-bit mask. Which of the following IP addresses can be configured at both ends of the link?
Which of the following services can be handled by the MP1 processing board?
In the case of.1:1 protection, according to the provisions of G.8031, the source and sink devices must select the route during switching, so the APS protocol is required to coordinate the work.
The EDFA erbium-doped fiber amplifier is a key component of the new generation of optical fiber systems. Which of the following options are correct for the description of its advantages?
The NCE network management supports a variety of external interfaces. Which of the following interfaces can be used when connecting with the network management equipment of other manufacturers?
The U2000 license file is stored in the following directory /u2000/server path. If the license file is invalid, the U2000 will not work normally.
Which of the following ways does the Inspector inspection tool support adding NEs?
According to the formula of ODUk rate2391C 239K) STMHM to car: ODUI to car 239/235- STMN frame rate.
The ETH_UWK_DOWN alarm indicates that the network port connection is faulty. The possible reasons do not include which of the following?
Which of the following statements is incorrect about the optical layer interfaces OTM-nm and OTM-nrm of OTN?
Which of the following descriptions about optical power commissioning is wrong?
Which of the following statements about the advantages of QinQ is correct?
It is known that the nominal value of single-wave input and output of OAU101 is -16/+4dbm, and the gain range is 20〜31db. If there is a wave of -20dbm signal at the input end, use DCM (A) (insertion loss 4db),
which is To make it reach the nominal output, the gain on the network management should be set to which of the following values
What are the possible reasons for the unsuccessful OCH creation by the path method?
Which of the following is the main structure of the N-way wavelength multiplexing WDM system?
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
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
To create a unicast BFD session between two IP addresses in a PIN network, which of the following must be satisfied?
The STAT indicator of the N1SLQ16 board is on red. What are the possible reasons for the following?
Create an ETH private line service in the PTN network, and connect an Ethernet tester to the UNI port for RFC2544 testing. The instrument shows that the current port has only sending traffic
and no receiving traffic. What are the possible reasons?
If both OA and OSC report optical loss alarms in WDM network, what is the most likely cause?
The 1510 nm optical monitoring channel can be effectively amplified after passing through the EDFA.
On the PTN equipment, when the tunnel bears data and forwards, which one is wrong in the description of the actions of each node on the LSP?
Which of the following statements about multiplexed partial range error indication (MS-REI) is true
① B2 byte represents the transmission channel.
② M1 byte folder indicates the transmission channel
③ MS-REI is sent from the receiver to the source.
④ MS-REI is transmitted from source to receiver
⑤ Indicates the number of bit errors detected by the receiver after receiving the MS signal.
Which of the following descriptions about the Optix OSN 9800 subrack are correct?
Standard FEC, AFEC and HFEC techniques all increase the FEC overhead, and the coding gains achieved are progressively increased.