12 Questions
What is the main benefit of constraint-based routing in MPLS networks?
Preventing inconsistencies in path computation
In MPLS networks, what is the primary function of the Label Distribution Protocol (LDP)?
Associating the label with a Forwarding Equivalence Class (FEC)
How does MPLS differ from hop-by-hop routing in terms of path calculation?
MPLS relies on a single router for consistent path calculation
Which protocol is primarily responsible for traffic engineering in MPLS networks?
RSVP-TE
What is the function of an LER in an MPLS network?
Assign the MPLS label to the packet based on its destination and requested service type
What is the role of an LSR in MPLS networks?
Determine the path a packet will take through the network based on labels
What does LFIB stand for in an MPLS context?
Label Forwarding Information Base
In MPLS, what is the purpose of Label Switching?
To forward packets based on labels rather than IP headers
Why is BGP typically not used for constraint-based routing in MPLS networks?
BGP is designed for inter-domain routing, not for constraint-based routing within a domain
What is the main reason behind avoiding RIP in large-scale MPLS networks?
RIP has scalability limitations in large networks
How does explicit constraint-based routing in MPLS differ from hop-by-hop routing?
In explicit routing, each router determines the entire path beforehand, unlike hop-by-hop routing
What role does the Label Distribution Protocol (LDP) play in MPLS networks?
LDP establishes Label-Switched Paths (LSPs) by distributing labels to routers
Test your knowledge on methods used in MPLS path calculation, including ingress LSR determining the entire LSP route and constraint-based routing based on link load constraints. Learn the differences between constraint-based routing and hop-by-hop routing.
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