H12-893_V1.0 Exam Dumps : HCIP-Data Center Network V1.0

Reliability in Huawei’s CloudFabric data centers is enhanced through various mechanisms. Let’s evaluate each option:

A. Power supply redundancy:This is true. Redundant power supplies (e.g., dual PSUs) ensure uninterrupted operation during power failures, a key reliability feature.TRUE.

B. M-LAG (Multi-Chassis Link Aggregation):This is true. M-LAG provides high availability by allowing active-active forwarding and failover between switches, enhancing network reliability.TRUE.

C. Monitor Link:This is false. Monitor Link is a Huawei feature for link status monitoring, not a direct reliability enhancement mechanism like redundancy or clustering.FALSE.

D. Controller cluster:This is true. A clustered SDN controller (e.g., iMaster NCE-Fabric) ensures high availability and failover, improving network management reliability.TRUE.

Thus,A, B, and Denhance DC reliability.References:Huawei CloudFabric Data Center Network Solution – Reliability Features; HCIP-Data Center Network Training – High Availability.

IP address planning is critical in Huawei’s CloudFabric data center networks to ensure scalability and efficiency. Let’s evaluate each statement:

A. Service addresses refer to the IP addresses of servers, hosts, and gateways:This is true. Service addresses are assigned to endpoints (servers, hosts) and gateways, distinguishing them from management or interconnection IPs in DC planning.TRUE.

B. IP addresses with a 24-bit mask are recommended for use as interconnection IP addresses:This is false. A 24-bit mask (/24) is typically used for service subnets, while interconnection IPs (e.g., between spine and leaf) often use smaller masks (e.g., /31 or /30) to conserve addresses and align with point-to-point links.FALSE.

C. IP addresses must be contiguous. The routes with contiguous IP addresses can be summarized easily on a hierarchical network:This is false. Contiguity is desirable for summarization but not mandatory; non-contiguous blocks can still be managed with proper routing design (e.g., using BGP).FALSE.

D. IP address allocation should be simple and easy to manage, reflect network layers, and simplify network management and network expansion:This is true. Huawei recommends structured allocation (e.g., by layer or function) to streamline management and support future growth.TRUE.

Thus,A and Dare true statements about IP address planning.References:Huawei CloudFabric Data Center Network Solution – IP Planning; HCIP-Data Center Network Training – Address Management.

On Huawei CloudEngine (CE) series switches, VXLAN tunnel monitoring and troubleshooting involve specific commands to diagnose issues such as tunnel Down status or failed dynamic establishment. Let’s evaluate each option:

A. Run the display vxlan statistics command to check the cause of the fault:This command provides statistics on VXLAN tunnel traffic, including packet drops, encapsulation/decapsulation counts, and errors. It helps identify issues like misconfiguration or network congestion, making it a valid troubleshooting tool.TRUE.

B. Run the display vxlan peer command to check the cause of the fault on the peer device of the tunnel:This command displays information about VXLAN peers, including their IP addresses, VNIs, and reachability status. Checking the peer device’s status can reveal connectivity or configuration mismatches, aiding fault diagnosis.TRUE.

C. Run the display vxlan troubleshooting command to check the causes of at most the latest five failures to dynamically establish a VXLAN tunnel:This command logs and displays troubleshooting details, including the latest five failure reasons for dynamic tunnel setup (e.g., BGP EVPN issues or reachability problems). This is a standard feature on Huawei CE switches.TRUE.

D. Run the display vxlan troubleshooting command to check at most the latest five reasons why a VXLAN tunnel goes Down:This command also tracks reasons for tunnel Down events (e.g., underlay failure, peer unreachability), limited to the latest five incidents. This is consistent with Huawei’s troubleshooting capabilities.TRUE.

All optionsA, B, C, and Dare true, as they represent valid commands and approaches to troubleshoot VXLAN tunnel issues on Huawei CE switches.References:Huawei CloudEngine Series Switch Command Reference – VXLAN Commands; HCIP-Data Center Network Training – Troubleshooting VXLAN.