CCNP SP MPLS FAQ: Label Distribution Protocol
Q1. What is the fundamental purpose of LDP?
Q2. Name the four main functions that LDP takes care of.
- The discovery of LSRs that are running LDP
- Session establishment and maintenance
- Advertising of label mappings
- Housekeeping by means of notification
Q3. How can you reduce the number of label bindings on an LSR?
Q4. What problem does MPLS LDP-IGP synchronization solve?
Q5. How many LDP sessions are established between two LSRs that have six links between them, of which two links are LC-ATM links and four are frame links?
Q6. What do you need to configure to protect the LDP sessions against attacks?
Q7. What trick does MPLS LDP-IGP Synchronization employ to ensure that the link is not used to forward traffic while the LDP session is unsynchronized?
Q8. What does LDP Session Protection use to protect an LDP session?
Figure: LDP Session Protection