LDP is dedicated for label distribution and supports multiple message types.
Which of the following messages is used to advertise and maintain LSRs?

To provide differentiated services for different users, users or services are classified based on packet information such as the packet priority, source IP address, and port number.
Which QoS technologies are often used to implement classification?

In the MPLS VPN, RD values are added to IPv4 addresses to distinguish IPv4 prefixes with the same address space.
Which of the following statements are true? (Multiple Choice)

Which information of IPv4 packets is used for simple traffic classification? (Multiple Choice)

FIFO can allocates different weights to different services and has good control of delay and jitter.