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| Section | Objectives |
|---|---|
| EVPN-VXLAN Signaling | - EVPN Concepts
|
| Data Center Multitenancy and Security | - Architectures
|
| Data Center Deployment and Management | - Data Center Management Concepts
|
| Layer 3 Fabrics | - Configuration and Troubleshooting
|
| VXLAN | - Configuration and Troubleshooting
|
| Data Center Interconnect | - DCI Concepts
|
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NEW QUESTION # 113
Click the Exhibit button.
Referring to the exhibit, data center DC1 has two pods in the same broadcast domain. You want to forward multicast traffic to only one host that is interested in receiving the multicast traffic.
In this scenario, which EVPN route type would be required to accomplish this task?
Answer: C
Explanation:
Selective multicast forwarding (sending multicast only to receivers that joined a specific source/group) requires advertising receiver interest for an (S,G) flow in EVPN so the fabric builds a multicast forwarding state only toward the interested host, instead of flooding multicast broadly.
NEW QUESTION # 114
You want to ensure that VXLAN traffic from the xe-0/0/12 interface is being encapsulated by logical vtep.32770 and sent to a remote leaf device.
In this scenario, which command would you use to verify that traffic is flowing?
Answer: A
Explanation:
show interfaces vtep.32770 detail: This command shows detailed counters, including encapsulation and decapsulation statistics, allowing you to confirm that VXLAN traffic is being encapsulated and forwarded through the VTEP interface.
https://www.juniper.net/documentation/us/en/software/junos/cli-
reference/topics/ref/command/show-interfaces-detail.html
NEW QUESTION # 115
Exhibit.
Referring to the exhibit, which statement Is true?
Answer: B
Explanation:
* Understanding Network Architectures:
* ERB (Edge Routed Bridging) architecture involves routing at the network's edge (leaf nodes), while traffic between leaf nodes is switched. This is commonly used in VXLAN-EVPN setups.
* Analysis of the Exhibit:
* The exhibit shows configurations related to routing instances, VXLAN, and VLANs, with VNIs being used for each VLAN. This setup is characteristic of an ERB architecture where each leaf device handles Layer 3 routing for its connected devices.
Conclusion:
* Option B:Correct-The configuration shown corresponds to an ERB architecture where routing occurs at the network's edge (leaf devices).
NEW QUESTION # 116
You want to provide a OCI that keeps each data center routing domain isolated, while also supporting translation of VNIs. Which DCI scheme allows these features?
Answer: D
Explanation:
* Understanding DCI (Data Center Interconnect) Schemes:
* DCI schemes are used to connect multiple data centers, enabling seamless communication and resource sharing between them. The choice of DCI depends on the specific requirements, such as isolation, VNI translation, or routing domain separation.
* VXLAN Stitching:
* VXLAN stitching involves connecting multiple VXLAN segments, allowing VNIs (VXLAN Network Identifiers) from different segments to communicate with each other while maintaining separate routing domains.
* This approach is particularly effective for keeping routing domains isolated while supporting VNI translation, making it ideal for scenarios where you need to connect different data centers or networks without merging their control planes.
* Other Options:
* A. MPLS DCI label exchange:This option typically focuses on MPLS-based interconnections and does not inherently support VNI translation or isolation in the context of VXLAN.
* B. Over the top (OTT) with VNI translation enabled:This could support VNI translation but does not inherently ensure routing domain isolation.
* D. Over the top (OTT) with proxy gateways:This typically involves using external gateways for traffic routing and may not directly support VNI translation or isolation in the same way as VXLAN stitching.
Data Center References:
* VXLAN stitching is a powerful method in multi-data center environments, allowing for flexibility in connecting various VXLAN segments while preserving network isolation and supporting complex interconnect requirements.
NEW QUESTION # 117
You are asked to identify microburst traffic occurring in the network leading lo packet drops in your data center switches Which two tools would be used in this scenario? (Choose two.)
Answer: C,D
Explanation:
* Identifying Microburst Traffic:
* Microbursts are short spikes in network traffic that can overwhelm buffers and cause packet drops. Detecting and analyzing microbursts is crucial for understanding where packet loss might be occurring in a data center network.
* Port Buffer Monitoring:
* Port Buffer Monitoring:This tool specifically tracks the usage of switch buffers, helping to identify when microbursts are causing buffers to overflow, leading to packet drops.
* Port Mirroring:
* Port Mirroring:This tool allows you to monitor real-time traffic on a specific port by copying the traffic to another port where it can be analyzed, often with a packet analyzer. While port mirroring doesn't directly detect microbursts, it helps capture traffic patterns that can indicate microbursts.
Conclusion:
* Option C:Correct-Port buffer monitoring directly identifies buffer overflows caused by microbursts.
* Option A:Correct-Port mirroring allows for the detailed capture and analysis of traffic patterns, which can reveal microburst behavior.
Options B(Traceoptions) andD(Syslog) are less effective in identifying microburst traffic. Traceoptions focus on control plane traffic debugging, and Syslog is more about logging system events than detecting high- frequency traffic spikes.
NEW QUESTION # 118
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