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?
What are the reasons for the R-Los alarm reported on the 0TU board?
OptiX OSN8800 provides 8 kinds of DCM optical modules, corresponding to compensation distances of 10km, 20km, 40km, 60km, 80km, 100km, 120km and 140km
respectively
The 1588V2 clock protocol can realize clock and time synchronization, and the working modes are OC, BC, TC.
The MPLS label has four identification fields, Lable, EXP, S and TTL, with a total of 4 bytes, of which Lable occupies 20 bits. The label value 0-15 is reserved for special purposes,
which indicates that the inner payload carried is MPLS-OAM packet. , the label value is which of the following?
The loss of optical fiber mainly includes the following?
In the PTN equipment, what is the default TAG mark of the Ethernet port?
Which of the following reasons may cause bit errors in the business?
A company has a class C IP address segment 198.160.110.0/24. The company has 6 departments, each department is located in a different subnet, and the number of hosts in each subnet
is the same as 25-30. Which of the following can be used as the subnet mask to reasonably plan the P address space?
Which of the following protection types is not supported by the L302 board?
