正確的300-515認證擁有模擬真實考試環境與場境的軟件VCE版本＆專業的300-515：Implementing Cisco Service Provider VPN Services

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Cisco 300-515 Exam Syllabus Topics:

SectionWeightObjectives
VPN Architecture25%- Troubleshoot underlay (Core IGP, LSP)
- Describe Layer 2 service architecture (IOS XR Ethernet Flowpoints, IOS XE EVCs)
- Describe L3VPN control plane (MP-BGP, RD, RT, VPN labels, VRF, PE-CE)
- Compare VPN architecture (Layer 2 vs Layer 3, Inter-AS/Intra-AS)
- Describe L3VPN data plane (underlay label, VRF forwarding, VPNv6)
IPv6 VPNs10%- Troubleshoot IPv6 VPN provider edge (PE-PE, PE-CE)
- Describe IPv6 VPN routing requirements (MP-BGP, PE-CE)
Layer 3 VPNs35%- Implement multicast VPN (Intranet, Extranet, mLDP)
- Describe routing requirements (MP-BGP, PE-CE routing)
- Troubleshoot Intra-AS L3VPNs (PE-CE, PE-PE, PE-RR)
- Describe Inter-AS L3VPNs (Options A, B, AB, C)
- Describe CSC concepts
- Implement extranet/shared services (route targets/policy)
Layer 2 VPNs30%- Implement Ethernet OAM
- Troubleshoot L2VPN services (E-LAN, E-Line, E-Tree)
- Describe EVPN concepts (data plane/control plane, multihoming, suppression, forwarding)
- Implement EVPN (IRB, VPWS, native)

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300-515通過考試 & 300-515認證題庫

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最新的 CCNP Service Provider 300-515 免費考試真題 (Q54-Q59):

問題 #54
How is an IPv6 route learned by other PEs if OSPFv3 is used as the PE-CE routing protocol?

答案：B

解題說明：
When OSPFv3 runs between CE and PE, the PE learns the customer's IPv6 routes via OSPFv3 and then injects them into MP-BGP under the VPNv6 (ipv6 vpn) address-family. This advertises the IPv6 prefixes (with RDs/RTs) to remote PEs over the MPLS core.


問題 #55
Refer to the exhibit. A large regional company has two primary offices in different cities, connected via a service provider that provides Layer 3 connectivity between the two sites.
Although the two company offices are physically separated, traffic from site B to the Internet uses the PE1 internet connection. The service provider is running OSPF in its core, with the loopback 0 IP address used as the OSPF and BGP router IDs. After the most recent service provider maintenance window, during which P3 was rebooted, the connection between CE1 and CE2 failed to come up. Which action must network engineers take to resolve the issue?

答案：B

解題說明：
MP-BGP VPNv4 exchange requires an LSP to each PE loopback. If P3 advertises its loopback with a non-/32 mask, the IGP/LDP FEC can be ambiguous and break the LSP toward PE2 after reboot. Advertising the loopback as a host route (/32) restores correct LDP/IGP reachability to the PE loopbacks and brings the CE1-CE2 connectivity back.


問題 #56
Refer to the exhibit:

A network engineer is implementing an OSPF configuration Based on the output, which statement is true?

答案：C


問題 #57
A service provider that implements large L2VPNs received a request to implement EVPN Native to improve a customer's Layer 2 communication across the core. MPLS is configured in the core to support VPN transport. Which action must the engineer take as part of the implementation?

答案：C

解題說明：
EVPN-Native relies on BGP to distribute MAC-IP bindings (via Type-2 MAC routes) so that each PE's software MAC table stays synchronized without flooding. Enabling MAC advertisement in the EVPN control plane is the key step: it tells each PE to learn and push customer MAC entries into MP-BGP and thus across the MPLS core.


問題 #58
A major company is updating its network environment to support the streaming of high-bandwidth video from a central data center to multiple remote offices. The company offices are connected across an ISP MPLS network, so an engineer at the ISP has been asked to configure MLDP to support the new streaming requirements. Which action must the engineer take so that the high- bandwidth data streams correctly from the data center to the remote offices?

答案：D

解題說明：
In multicast VPNs, by default traffic is sent over a default MDT. For high-bandwidth applications like video streaming, a data MDT is required to optimize traffic delivery. The PE is configured with a threshold so that once multicast traffic exceeds that value, a data MDT is created to carry the high-bandwidth stream efficiently to remote sites.


問題 #59
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