Juniper
JN0-663 · Question #33
Click the Exhibit button. ISP1 has created an L3VPN to connect CE1 and CE2. The PE-CE routing protocol is OSPF. Referring to the exhibit, which technology will allow CE1 to receive Type 1 and Type 2…
The correct answer is A. OSPF sham links. OSPF creates an adjacency and exchanges LSAs across the sham link. As a result, OSPF sees both the path over the backdoor link and the path over the backbone as intra-area paths.
MPLS Layer 3 VPNs
Question
Click the Exhibit button. ISP1 has created an L3VPN to connect CE1 and CE2. The PE-CE routing protocol is OSPF. Referring to the exhibit, which technology will allow CE1 to receive Type 1 and Type 2 LSAs from CE2?
Exhibit
Options
- AOSPF sham links
- BRIB groups
- COSPF domain IDs
- DOSPF virtual links
How the community answered
(32 responses)- A81% (26)
- B3% (1)
- C13% (4)
- D3% (1)
Explanation
OSPF creates an adjacency and exchanges LSAs across the sham link. As a result, OSPF sees both the path over the backdoor link and the path over the backbone as intra-area paths.
Topics
#L3VPN#OSPF sham links#LSA types#PE-CE routing
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