• Method to contain QUERY domain.
  • Good design option for DMVPN spokes.
    • Or hub and spoke topologies in general.
  • At a remote branch/location often times there’s only has one primary mode of transit back to the enterprise network. If the remote branch is setup as a regular EIGRP router, then every time there’s a topology change, anywhere, the remote branch router will receive a query from its neighbor (probably hub) asking if it knows the downed prefix. A stub EIGRP router will never receive these queries because it is assumed there’s no other EIGRP speaker behind the branch/spoke gateway.

Configuration is very simple. In Named Mode it’s under the Autonomous System.

In Classic Mode it’s under ‘router eigrp <as>’.

Note advertising connected and summary is default.

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