With the given output from an HPE Aruba Networking CX 6300: Which statement about the output above is true?

Question

Exhibit

Options

• AThe accepted AS paths are defined in the aspath-list.
• BThe defined route-map is used in BGP with neighbor remote-as export.
• CThe advertised AS paths are configured in an IP prefix-list.
• DThe route-map with aspath-list intended for iBGP peers.

• A
  64% (16)
• B
  8% (2)
• C
  20% (5)
• D
  8% (2)

Explanation

Option A is correct because an aspath-list on Aruba CX switches explicitly defines regular-expression patterns that permit or deny BGP routes based on their AS_PATH attribute - the routes matching a permit statement in the list are the accepted paths, which is the core function of that construct.

Option B is wrong because route-maps are applied to BGP neighbors using route-map <name> in/out, not with a remote-as export syntax - that phrasing doesn't exist in standard Aruba CX BGP configuration.

Option C is wrong because IP prefix-lists filter on network prefixes (IP address/length), not AS paths; AS path filtering is exclusively the role of aspath-list, not prefix-lists.

Option D is wrong because filtering based on specific external AS numbers in an aspath-list is characteristic of eBGP (inter-AS) filtering - iBGP peers share the same AS, so AS path regex filters targeting external ASes would not be meaningful for iBGP.

Memory tip: Think "A is for AS path = aspath-list" - prefix-lists match prefixes, aspath-lists match AS paths. Keep the data type matched to the filter type and you'll eliminate C and D instantly.

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