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Q49 Multiple choice

Customer XYZ 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's 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 two concepts about the Overload Bit are true? (Choose two.)

Select all that apply.

A
It can be set on a router during the startup process for a fixed period of time
B
Networks advertised within the LSPs of the respective node will become unreachable
C
It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node.
D
It can be set on a router until other interacting protocols have signaled convergence.
E
It is not recommended on BGP Route Reflectors

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