Click the Exhibit button.
ISP 1 wants to configure an IPv6 L3VPN over its IPv4-only MPLS network for Customer-A. PE1 has been
configured as shown in the exhibit; however, IPv6 routes are not being passed between PE1 and PE2 in the
Customer-A VPN.
In this scenario, which two commands are necessary on PE1 to enable IPv6 connectivity between CE1 and
CE2? (Choose two.)
A.
set protocols bgp group PE2 family inet6 unicast
B.
set interfaces ge-1/1/1.0 family mpls
C.
set protocols bgp group PE2 family inet6-vpn
D.
set protocols mpls ipv6-tunneling
Explanation:
Tunneling IPv6 Traffic over MPLS IPv4 Networks
D: You enable IPv6 tunneling by including the ipv6-tunneling statement in the configuration for the PE routers.A: BGP automatically runs its import policy even when copying routes from a primary routing table group to a
secondary routing table group. If IPv4 labeled routes arrive from a BGP session (for example, when you have
configured the labeled-unicast statement at the [edit protocols bgp family inet] hierarchy level on the PE router),
the BGP neighbor’s import policy also accepts IPv6 routes, since the neighbor’s import policy is run while doing
the copy operation to the inet6.3 routing table.
http://www.juniper.net/documentation/en_US/junos15.1/topics/example/mpls-tunneling-ipv6-overmpls-ipv4.html
correct answer is C and D
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why C?
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C and D, with inet6-vpn you transport mpls vpn information, with other,just ipv4 plain.
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C and D. the interface is inside VRF and the only way to advt is 6VPE
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more details, please, watch elearning bytes free –
https://www.youtube.com/watch?v=z4qYO3eQliY
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Folks if you truly want to tick the correct answers, Choose option A and D.
Option C, set protocols bgp group PE2 family inet6-vpn is an incomplete command, it must always end with either, any, multicast or unicast, and should be used when routing-instance is not involved, meaning when you simply want to connect a PE to CE with IPv6 addresses.
Option A, set protocols bgp group PE2 family inet6 unicast is a complete command and handles Layer 3 VPN routing instances effectively.
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Option A, actually should be under the routing-instance configuration. C & D, could pass, though C is an incomplete command.
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Chuck, question did you take the exam lately?
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