A mission-critical server is connected to site A.
Connectivity to this server is lost from site B because the MAC route is missing in the OTV VDC of the Cisco Nexus 7000 in site B due to MAC aging.
Which action allows the flooding of the unknown unicast MAC on the Nexus 7000 in the OTV VDC?
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A. B. C. D.B.
In this scenario, the issue is that the MAC route for the mission-critical server is missing in the OTV VDC of the Cisco Nexus 7000 in site B due to MAC aging. This has caused connectivity to the server to be lost from site B.
To resolve the issue, we need to allow the flooding of the unknown unicast MAC on the Nexus 7000 in the OTV VDC. This can be done using the following options:
Option A: Use a route map to statically advertise this MAC and redistribute it with IS-IS. This is not a recommended solution as it involves manual configuration of a static route map and redistribution, which can be complex and time-consuming.
Option B: Unknown unicast flooding is not allowed. This option is not a solution as it does not address the problem.
Option C: Use the otv flood mac <> command to selectively flood traffic for a given MAC. This is the recommended solution as it allows for the selective flooding of traffic for a specific MAC, which will resolve the issue. The otv flood mac <> command is used to specify the MAC address that needs to be flooded. Once this command is issued, the OTV VDC will flood traffic for the specified MAC address.
Option D: Use the otv isis bfd <> command to configure BFD protocol. This option is not a solution as it does not address the problem of missing MAC route in the OTV VDC.
In conclusion, the recommended solution to allow flooding of the unknown unicast MAC on the Nexus 7000 in the OTV VDC is to use the otv flood mac <> command to selectively flood traffic for a given MAC.