A technician has racked a new access switch and has run multimode fiber to a new location.
After installing an extended-range 10Gb SFP in the core switch, the technician installed a 10Gb SFP in the access switch and connected the port to the new extension with a fiber jumper.
However, the link does not display, and the technician cannot see light emitting from the core switch.
Which of the following solutions is MOST likely to resolve the problem?
A.
Swap the fiber pairs in one of the SFPs B.
Replace the jumpers with single-mode fiber C.
Set the correct MTU on the new interface D.
Install an optic that matches the fiber type.
B.
A technician has racked a new access switch and has run multimode fiber to a new location.
After installing an extended-range 10Gb SFP in the core switch, the technician installed a 10Gb SFP in the access switch and connected the port to the new extension with a fiber jumper.
However, the link does not display, and the technician cannot see light emitting from the core switch.
Which of the following solutions is MOST likely to resolve the problem?
A.
Swap the fiber pairs in one of the SFPs
B.
Replace the jumpers with single-mode fiber
C.
Set the correct MTU on the new interface
D.
Install an optic that matches the fiber type.
B.
This scenario involves a new access switch that has been installed, and multimode fiber has been run to a new location. The technician has installed a 10Gb SFP in both the core switch and the access switch and connected them with a fiber jumper. However, the link is not displaying, and there is no light emitting from the core switch.
The issue could be due to a variety of factors, such as incorrect cabling, incompatible optics, or incorrect configuration. To determine the solution, we need to troubleshoot the problem systematically.
A. Swap the fiber pairs in one of the SFPs Swapping the fiber pairs in one of the SFPs may not be the solution because multimode fiber cables use two strands of fiber that are used to transmit and receive data, whereas single-mode fiber cables use a single strand of fiber. Swapping the fiber pairs in one of the SFPs will not help in this situation.
B. Replace the jumpers with single-mode fiber This solution is unlikely to work because the technician has already installed multimode fiber. Single-mode fiber has a smaller core than multimode fiber, which means that it can carry data further distances with less attenuation, but it requires a different type of SFP. Therefore, replacing the jumpers with single-mode fiber is not a viable solution in this scenario.
C. Set the correct MTU on the new interface MTU stands for Maximum Transmission Unit, which is the maximum size of a packet that can be transmitted over the network. Incorrect MTU settings can cause packet loss and network connectivity issues. However, setting the correct MTU on the new interface is unlikely to solve the problem in this scenario because it does not address the issue of the link not displaying.
D. Install an optic that matches the fiber type This is the most likely solution to the problem. Since the technician has installed multimode fiber, they need to install an SFP that is compatible with multimode fiber. Installing a 10Gb SFP that matches the fiber type will allow data to be transmitted over the network.
In conclusion, the most likely solution to the problem is to install an optic that matches the fiber type. This will allow data to be transmitted over the network.