https://www.theverge.com/2020/6/ ... tage-june-explainer
Our engineers worked through the night to understand the root cause of yesterday’s issues, address it and prevent it from happening again. The trigger event is known to be a leased fiber circuit failure from a third party provider in the Southeast. This is something that happens on every mobile network, so we’ve worked with our vendors to build redundancy and resiliency to make sure that these types of circuit failures don’t affect customers. This redundancy failed us and resulted in an overload situation that was then compounded by other factors. This overload resulted in an IP traffic storm that spread from the Southeast to create significant capacity issues across the IMS (IP multimedia Subsystem) core network that supports VoLTE calls.
斷光纖，啲fallback routing 做得唔好影響 T-Mobile，然後被強國媒體演繹成「也有美国网友认为，或许是T-Mobile的基站出现软件故障，与2018年日本软银出现的断网情况类似。据悉，T-Mobile和软银都主要使用爱立信基站。」 |
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發表於 2020-6-16 23:42
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