What are two mechanisms supported on AOS-CX 6300 switches used in Multi -active Detection to determine the status of the Primary member?

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1. The correct answers: A,B

   Split Detection Using Multi-Active Detection

   You can use Multi-Active Detection (MAD) to avoid split-brain situations.
   Thus, if a VSF link failure occurs, the segment that includes the Standby
   member verifies Primary member status. If the original Primary is up, then all
   members in the fragment that does not include the Primary member will
   disable all their ports (Figure 12-17).
   VSF uses two mechanisms to detect and verify the status of the Primary
   member.

   Management Interface Split Detection

   This method requires you to connect Out-Of-Band Management (OOBM)
   interfaces to primary and secondary stack members. These interfaces must be
   in the same Layer-2 broadcast domain (VLAN). This network is used to
   identify active stack fragments. Each member broadcast Split Detection
   Protocol Packets to identify stack fragments that are currently operational.

   Peer Switch-Based Detection

   This method does not require additional connections and relies on the Link
   Aggregation Group (LAG) implementation. Switches ask the LAG Peer
   about its interface states using those interfaces connected to primary and
   secondary stack fragments. If the LAG peer indicates that its interfaces
   toward the Primary member are up, then the Standby member has detected a
   Split-brain situation, and shuts down its interfaces.

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