In OSPF, the A, BR will convert all type 7 L SAs in the NSSA area to type 5 L SAs.

To speed up the detection of link failures in an IS-IS network, you can associate IS-IS with BFD.

If the temperature of the device is found to be too high, it can be concluded that the fan has failed

EGP authentication can prevent illegal routers from establishing neighbors with B, CP routers. B, CP authentication can be divided into MD5 Authentication and Keychain authentication, which of the following BGP documents will carry the B, CGP Keychain authentication letter interest? (header carry)

Regarding the description of the encapsulation format of labels in MPLS, the correct one is