Refer to the exhibit. After maintenance to activate BGP neighbors connecting a new data center attached to R1, L3VPN customers attached to OSPF domain 100 lost connectivity to services in OSPF 200 and OSPF 300. However Unified MPLS services within OSPF 100 remain reachable.
Which action must the network engineer take to resolve the outage?

• A.Establish new MPLS LSPs from R1 to R2, R3 and R4
• B.Reset the BGP session between R1 and R2
• C.Activate BGP neighbors between the new data center and R2 and R3
• D.Raise the maximum prefix limit on R2 to 1560 or more

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Refer to the exhibit. A Tier 1 ISP provides connectivity services to two regional ISPs, ISP1 and ISP2, leveraging the MPLS network. OSPF is used as an internal routing protocol, and BGP is used for communication with external customers. After maintenance work on the backbone, connectivity between ISP1 and ISP2 started to fail. A network engineer for the Tier 1 ISP determined that hosted shared resources with IP prefix 192.0.21.0/24 are not reachable from the IPS2 side. Which action must be taken to restore connectivity?

• A.Enable MPLS on all interfaces in the MPLS network within the Tier 1 ISP backbone.
• B.Increase the OSPF cost for routes received from ISP1 on PE1.
• C.Increase the BGP local preference for routes received from ISP1 on PE1.
• D.Enable CEF on all routers in the MPLS network within the Tier 1 ISP backbone.

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SIMULATION
Guidelines
This is a lab item in which tasks will be performed on virtual devices.
- Refer to the Tasks tab to view the tasks for this lab item.
- Refer to the Topology tab to access the device console(s) and perform the tasks.
- Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
- All necessary preconfigurations have been applied.
- Do not change the enable password or hostname for any device.
- Save your configurations to NVRAM before moving to the next item.
- Click Next at the bottom of the screen to submit this lab and move to the next question.
- When Next is clicked, the lab closes and cannot be reopened.
Topology

Tasks
Troubleshoot and configure BGP according to the topology to achieve these goals:
1. R1 and R3 establishes IBGP connectivity using Loopback addresses. The updates should come from Loopback0.
2. R3 should be able to ping loopback0 interface of R2. These changes must be accomplished through BGP.
3. R1 advertises only the summary route of 172.16.100.0/22 to R2 and R3.

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Drag and drop the features from the left into the order of operations for SRv6 SSH field creation and forwarding on the right.

Correct Answer:

Explanation:
Features as
Chart Description automatically generated
Graphical user interface, text, application, email Description automatically generated

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What is the purpose of a BGP confederation?

• A.It improves service by increasing the number of simultaneous iBGP peering sessions.
• B.It reduces the number of iBGP peers and increases stability.
• C.It limits the number of routes a device receives from its peers, which reduces CPU load.
• D.It redirects traffic away from route reflectors, which reduces their operating load.

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