Cisco Service Provider Routing Specialist — Question 1

Which statements are true regarding the L3VPN configurations?

Answer options

• A. Prior to configuring a vrf within MP-BGP, the router has to have instantiated the VPNv4 or VPNv6 address-family.
• B. On a single PE router, the Route Distinguisher and the Route Targets must be the same.
• C. Prior to configuring a neighbor in the VPNv4 address-family, it must already be configured for IPv4-Unicast.
• D. The import and export Route Targets must be the same on a PE.

Correct answer: C

Explanation

Option C is correct because establishing a neighbor in the VPNv4 address-family requires prior configuration of IPv4-Unicast to ensure proper routing. Option A is incorrect as the VPNv4 or VPNv6 address-family must be instantiated after the vrf configuration. Option B is false because the Route Distinguisher and Route Targets do not have to be the same on a single PE router. Option D is also incorrect since the import and export Route Targets do not need to be identical.