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NEW QUESTION # 76
Exhibit.
Both DC and DC2 ate using EVPN-VXLAN technology deployed using an ERB architecture. A server on the Red VLAN must communicate with a server on the Green VLAN. The Blue VLAN in DC and DC2 needs to be the same VLAN.
Which statement is correct in this scenario?
Answer: D
Explanation:
* ERB Architecture in EVPN-VXLAN:
* ERB (Edge Routed Bridging) architecture is commonly used in data center networks where routing decisions are made at the network edge (leaf or border devices), while bridging (Layer 2 forwarding) is extended across the fabric. This architecture allows for efficient L3 routing while still enabling L2 services like VLANs to span across multiple locations.
* VLAN and VNI Configuration:
* The scenario specifies that a server on the Red VLAN needs to communicate with a server on the Green VLAN. Since these VLANs are in different data centers (DC and DC2), and given the use of EVPN-VXLAN, the communication between these VLANs will require atransit VNI(Virtual Network Identifier). This transit VNI will allow traffic to traverse the VXLAN tunnel across the DCI (Data Center Interconnect).
* Interconnect between SRX Series Devices:
* The exhibit shows SRX Series Chassis Clusters used as service devices (likely for firewalling or other security services). These devices need to be interconnected between the two data centers to ensure that VLANs can communicate effectively. The Blue VLAN needs to be stretched between DC and DC2 to maintain the same Layer 2 domain across both data centers.
Conclusion:
* Option B:Correct-Interconnecting the SRX Series devices will ensure the necessary service chaining, while stretching the Blue VLAN and adding a transit VNI for the Red and Green VLANs will enable the required communication across the data centers.
NEW QUESTION # 77
You have a sample configuration for connecting two sites through EVPN-VXLAN by exchanging IP prefix routes.
Referring to the exhibit, which two statements regarding the configuration are true? (Choose two.)
Answer: A,C
Explanation:
The configuration provided in the exhibit shows an EVPN-VXLAN setup where IP prefix routes are exchanged between two sites. The advertise direct-nexthop option and the VNI (Virtual Network Identifier) settings are crucial in this context.
Option A: The advertise direct-nexthop option ensures that the next-hop route is resolved using only the information carried in the EVPN Type 5 route. Type 5 routes are used for IP prefix advertisement in EVPN, which is key to enabling Layer 3 interconnectivity between different VXLAN segments.
VNI Consistency:
Option C: For the same customer across different devices, the VNI must be consistent. This consistency ensures that all devices can correctly map traffic to the appropriate VXLAN segment, maintaining seamless Layer 2 and Layer 3 connectivity.
NEW QUESTION # 78
Click the Exhibit button.
You have implemented an ERB overlay topology with an EBGP underlay. VXLAN tunnels are forming with the spine device as the VTEP.
Referring to the exhibit, which change must be made to the group overlay configuration?
Answer: D
Explanation:
In an eBGP EVPN overlay, the spine will, by default, rewrite the BGP next-hop when advertising EVPN routes to other peers, which makes the spine appear as the VTEP and causes VXLAN tunnels to form toward it. Enabling the no-nexthop-change behavior preserves the original leaf's VTEP next-hop so VXLAN tunnels form between the leaf VTEPs instead of to the spine.
NEW QUESTION # 79
You are asked to build out the VXLAN control plane.
In this scenario, which two protocols provide this capability? (Choose two.)
Answer: C,D
Explanation:
MBGP (Multicast BGP): MBGP is used to advertise VXLAN information across the control plane, specifically for multicast-based VXLAN deployment. It helps in distributing VXLAN Network Identifiers (VNIs) and other relevant information in an efficient manner across the network.
PIM-SM (Protocol Independent Multicast - Sparse Mode): PIM-SM is used to build multicast distribution trees in VXLAN flood-and-learn mode or when multicast-based VXLAN control planes are used.
NEW QUESTION # 80
You are asked to interconnect two of your company's data centers across the IP backbone. Both data centers have their own unique IP space and do not require any bridging.
In this scenario, which two actions would accomplish this task? (Choose two.)
Answer: B,C
Explanation:
Configure peering for EVPN between border leaf nodes in each data center: In order to interconnect the data centers across the IP backbone, you would configure EVPN peering between the border leaf nodes in each data center. Border leaf nodes act as the gateway between the local data center and the external network (in this case, the inter-data-center IP backbone). This ensures that the data centers can communicate and exchange routing information.
Configure a Type 5 EVPN route for each unique prefix: Type 5 EVPN routes are used for inter-subnet communication (i.e., for advertising IP prefixes between data centers). Since the data centers have unique IP address spaces and do not require bridging, Type 5 routes are appropriate for advertising these unique prefixes across the data centers.
NEW QUESTION # 81
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