Single service comparison

Both services inject a private IP into a VPC/VNet subnet, but the control-plane models differ. Azure Private Link spans two construction patterns: Private Endpoints consuming Azure PaaS, and Private Link Service publishing your own service behind a Standard Load Balancer for cross-tenant consumption. Huawei VPCEP mirrors the consumer/producer split with VPC endpoint services and VPC endpoints, but the producer side is anchored to an Elastic Load Balancer (ELB) rather than a generic Standard LB with NAT mapping, and endpoint services reference backend resources plus port mappings rather than Azure's NAT-less forwarding. Vice VPCEP does not expose the same cross-tenant onboarding workflow or approval model that Azure's Private Link Service exposes.

DNS and connectivity semantics diverge meaningfully. Azure couples private endpoints with Azure Private DNS Zones and resolution policy overrides per region-FQDN, so service hostnames resolve privately but global, cross-region private endpoint consumption is not supported for the producer path. Huawei VPCEP relies on the VPC's own resolver plus the endpoint service's assigned private IP, and per Huawei FAQ VPC Endpoint does not support cross-region access; cross-region private service consumption must be bridged with Enterprise Router, VPC peering, or Direct Connect/VPN rather than the endpoint itself. Account for this boundary when matching topology.

Operational responsibility and scaling differ. Azure manages the Private Link Service backbone, connection approvals, and TCP proxy behavior, charging per endpoint hour plus processed data plus inbound/outbound; you are responsible for the LB and backend health. Huawei VPCEP advertises up to 1 million concurrent requests per second and bills endpoint and endpoint-service resource-hours plus processed traffic, with separate charges if you front ELB, NAT, ER, or Direct Connect. Failover, cross-account approval, and diagnostic logs map to different APIs (VPC Endpoint API vs. Azure Network API), so scripts and policies are not portable.

Start by inventorying every Azure Private Endpoint (PaaS target, subnet, private DNS zone group, and approval state) and each Private Link Service (LB, NAT mapping, visibility subscription list). For each, classify whether the target is a Huawei PaaS with a VPCEP endpoint service (e.g., OBS), a self-hosted service behind ELB, or a cross-region/cross-tenant case needing Enterprise Router plus VPC peering. Identify Azure Private DNS Zone overrides that must be rebuilt as Huawei VPC private DNS/UserDefined resolver rules before cutover.

Reproduce producer and consumer topology in Huawei VPCEP: create a VPC endpoint service fronting the ELB backend, define port mappings, and create VPC endpoints in consumer VPCs/accounts. Replace Azure Private DNS Zone resolution with Huawei VPC custom resolver records that point service FQDNs at the endpoint private IP, and replicate any cross-account approval/whitelist settings using VPCEP's connection-acceptance and permission models. There is no automated Azure-to-Huawei endpoint migration tool, so configuration is rebuilt via Terraform/ROC and state is reconciled manually.

Validate before cutover: confirm endpoint private IP reachability, port-mapped health checks, DNS resolution from each consumer subnet, and failover by failing an ELB backend. Re-run the Azure parity tests you relied on (latency, throughput, connection draining) against VPCEP with realistic load. Note that Huawei VPC Endpoint does not support cross-region private access on the endpoint itself, so any Azure topology that consumed a private endpoint across regions must be re-architected onto Enterprise Router/Direct Connect before you can declare parity.

Recost and document gaps. Azure Private Link fees include endpoint-hours, processed GB, and outbound transfer; Huawei VPCEP fees include endpoint resource-hours, processed traffic, and ancillary ELB/EIP/NAT/ER/DC resource-hours and bandwidth where those additional services are used. Rebuild TCO with peak request volume and retention, and track residual feature gaps such as Azure's NAT mapping on the Private Link Service, Private DNS Zone group behavior, and cross-tenant approval workflow that may need process substitutes on Huawei.