Huawei HCIE-Datacom case studies
Huawei HCIE-Datacom · Put your knowledge to work in context.
HCIE-Datacom is the Expert-level certification in Huawei's Career Certification portfolio, which spans three tiers: Huawei Certified ICT Associate (HCIA), Huawei Certified ICT Professional (HCIP), and Huawei Certified ICT Expert (HCIE). It sits in the Datacom technical field, one of the tracks shown on Huawei's certification roadmap alongside WLAN, Security, Transmission, Access, 5G and LTE. Because it is an HCIE, it is aimed at senior network engineers, solution architects and technical leads who design, deploy and troubleshoot large enterprise or carrier data networks and who want a credential that signals depth rather than breadth. The certification is delivered in two stages: a written exam, supplied by the Pearson VUE testing service company, followed by a separate HCIE Lab Exam that candidates schedule through Huawei's own lab booking process. The Huawei HCIE-Datacom case studies are 5 cases and about 2,455 words.
1EVPN VXLAN MAC Mobility Blackhole in a Dual-Homed Server Migration
An enterprise runs two data centers, DC-A and DC-B, each with 8 leaf switches, 2 spines, and 2 border leaves. The fabric uses VXLAN with BGP EVPN; the underlay is OSPF area 0.
528 words, about 3 min2SRv6 to MPLS Interworking and Path MTU Failure
An operator is migrating a 180-node IP/MPLS backbone to SRv6. The core runs IS-IS Level-2 and SRv6 with uSID; 48 legacy PEs still use LDP and MPLS VPNv4.
495 words, about 2 min3VXLAN BUM RPF Failure After Adding a Spine
An 18-building campus has 18 leaf switches, 3 border leaves, and 2 spines. VXLAN BGP EVPN serves 2,200 access points and 60 wireless VLANs.
523 words, about 3 min4Automation Rollback Blast Radius Across 1,200 Devices
A managed-services provider operates 1,200 Huawei routers and switches running V200R019, V200R021, and V200R023. A Python/Ansible pipeline uses NETCONF over SSH and YANG models to enforce a baseline: disable Telnet, enable SSH, set NTP, and configure AAA.
442 words, about 2 min5Local Internet Breakout and Voice QoS Asymmetry
An enterprise has 480 branches connected by SR-MPLS to two hub sites, with BFD on all WAN links. Voice uses SIP over UDP 5060 and RTP 16384–32767; DSCP EF.
467 words, about 2 min