What occurs when a router running IS-IS receives an LSP with the overload bit set?
A. The LSP is ignored during SPF calculation.
B. The LSP is not added to the link-state database.
C. The LSP’s metric will be set to 65535.
D. The LSP’s metric will be set to 16777215.
it should be A
I think it’s C
0xFFFF = 65535
https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/ref/statement/overload-edit-protocols-isis.html
no, it means the overloaded router send LSA with metric 0XFFFF. it does not mean that the receiving router set it to 0xFFFF, instead, the receiving router will ignore the LSA from spf calculation.