DMIT LAX.EB 至中国电信方向丢包波动（AS9929 互联拥塞）,官方开放按比例退款

DMIT 公告：LAX.EB 到中国电信方向出现间歇性丢包和延迟波动，根因在联通 AS9929 骨干与电信互联点的上游拥塞/路由不稳定，超出 DMIT 网络边界。AS9929 是普通 IP BGP 网络，缺少 AS4809/AS58807 的 MPLS 流量工程能力，恢复时间取决于联通上游。11 月前购买的 LAX.EB 可申请按比例退款或账户余额，用于补货后的 LAX.Pro。公告原文如下：

官方页面：https://dmit.news/2026-11-14-lax-eb-route-performance-to-china-telecom-and

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.

问题说明

• 受影响线路：LAX.EB 至中国电信方向
• 现象：间歇性丢包、延迟波动
• 根因：上游 China Unicom 互联拥塞与路由不稳定，问题发生在 DMIT 网络边界之外
• 进展：已升级至最高级别上游支持，持续监控路径指标并提供诊断数据
• 恢复时间：无法保证 ETA，取决于 China Unicom；参考历史同类事件可能需要较长时间

为什么动态优化受限

China Unicom AS9929 是标准 IP BGP 网络，不具备 AS4809 / AS58807 这类 MPLS 骨干的细粒度流量工程能力，跨运营商拥塞时的动态路径优化精度有限。

灵活保障方案

如果业务对电信连通性要求严格、无法等待，且服务是在 2026 年 11 月之前购买，DMIT 提供按比例退款：

• 退回原支付方式；或转为账户余额，用于补货后的 LAX.Pro
• 请通过 support ticket 联系 DMIT 官方处理。

官网

网址：https://www.dmit.io/

DMIT库存：https://stock.qixi.me/

DMIT线路质量监控：https://ping.wze.me/

大概过段时间就是补货这个套餐，需要的可以收藏一下，或者收藏库存监控

美国LAX.Pro.AS3 – Premium套餐

特点是AS3（AMD EPYC 7003 Series）平台，

网络情况：

三网 CN2 GIA 回程
电信 CN2 GIA 去程
联通 CUG VIP（9929）去程
移动 CMIN2 去程
IPv6 双程三网优化（CMIN2+CUG VIP 回程）

测评：https://www.daniao.org/30428.html

网络测试：https://lg.dmit.sh/?server=1