LAX.EB Route Performance to China Telecom and Flexible Options
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We have recently identified intermittent packet loss and latency fluctuations on our LAX.EB routes destined for China Telecom. Our network engineering team has traced the root cause to upstream peering congestion and routing instability within China Unicom's backbone, which currently falls outside any carrier-level SLA coverage.
Because this degradation occurs at the interconnection point between China Unicom and China Telecom, direct remediation lies outside DMIT's network perimeter. However, we have already escalated this issue to the highest tier of upstream support and remain actively engaged in monitoring path metrics and providing diagnostic data. Given the historical resolution timelines observed with similar incidents (such as SJC AS4837 several years ago), we want to remain transparent that we cannot provide a guaranteed ETA for resolution, as the timeline rests entirely with China Unicom.
From an architectural standpoint, China Unicom's AS9929 operates as a standard IP BGP network supported by a compact US-based NOC team. Unlike MPLS-enabled backbones such as AS4809 and AS58807, AS9929 lacks native support for granular traffic engineering, which limits the precision of dynamic path optimization during cross-carrier congestion.
We sincerely apologize for any disruption this may cause to your operations. While we continue to follow up on upstream improvements, we understand that some workloads have strict requirements for China Telecom connectivity and cannot afford to wait. Should this be the case—and provided your service was purchased prior to November，We are happy to accommodate your needs with an unconditional pro-rata refund, either back to your original payment method or as account credit, which you can conveniently use toward a LAX.Pro instance once it is restocked. Please feel free to reach out via a support ticket if you would like to explore these options.