The Customer X Network Consists of an MPLS Core, IS-IS

question 52

Multiple Choice

The Customer X network consists of an MPLS core, IS-IS running as IGP, a pair of BGP route reflectors for route propagation, and a few dozens of MPLS-TE tunnels for specific tactical traffic engineering requirements. The customer engineering department has some questions about the use of the Overload Bit in the IS-IS networks and how it could be used to improve their current network design. Which three options about the Overload Bit are true? (Choose three.)

• A) It is not recommended on BGP route reflectors.
• B) It only affects the use of the respective node as a transit node, and networks advertised within the LSPs of the node are still reachable.
• C) It can be set on a router during the startup process for a fixed period of time.
• D) It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.
• E) It can be set on a router until other interacting protocols have signaled convergence.

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