Which OSPFv2 packet is utilized to transmit link state change information?

The OSPFv2 packet that is utilized to transmit link state change information is the Link State Update (LSU) packet. This packet plays a critical role in the OSPF routing protocol as it is responsible for conveying the Link State Advertisements (LSAs) from one router to another.

When there is a change in the network topology, such as a link going up or down, routers generate LSAs that describe their state and the network's current configuration. These LSAs are then encapsulated within the LSU packets and sent to neighboring routers. Upon receiving LSU packets, routers can update their link state databases and recalculate their routing tables accordingly. This mechanism allows OSPF to quickly adapt to network changes and maintain accurate routing information across the entire OSPF area.

In contrast, the other options do not accurately represent the function of OSPFv2 packets used for transmitting link state information.