PacketStream - Notice history

Attack traffic has decreased to a manageable level, and our network remains stable.
We are continuing enhanced monitoring to ensure full stability across all routes.

We are working closely with our upstream providers to perform additional mitigation and preventive measures.
Further updates will be provided if any new actions are required.

공격 트래픽이 관리 가능한 수준으로 감소하였으며, 네트워크는 안정적으로 유지되고 있습니다.
현재 지속적인 모니터링을 강화하여 전체 경로의 안정성을 확인 중입니다.

현재 업스트림 파트너와 협력하여 추가적인 대응 및 예방 조치를 진행 중입니다.
추가 조치가 필요할 경우, 추가 공지를 통해 안내드릴 예정입니다.

Traffic redistribution measures have been successfully implemented.
For stability reasons, some prefixes have been temporarily rerouted through our Japan POP.

As a result, users accessing services from within Korea may experience up to 30ms of additional latency while traffic is routed via Japan.
Once the issue affecting the ICN POP is fully resolved, traffic will automatically revert to routing through the Korea POP.

At this time, network conditions have largely stabilized, and services are operating normally.

현재 트래픽 분산 조치가 정상적으로 적용되었습니다.
네트워크 안정성을 위해 일부 prefix는 임시로 일본 POP을 통해 ReRoute 처리되었습니다.

이에 따라 한국 내 접속 시 최대 약 30ms의 추가 레이턴시가 발생할 수 있습니다.
ICN POP 관련 이슈가 완전히 해결되는 대로 트래픽은 자동으로 한국 POP 경로로 복구될 예정입니다.

현재는 대부분의 네트워크 상태가 안정화되었으며, 서비스는 정상적으로 운영 중입니다.

The connectivity issue between our Japan POP and Korea has been resolved.

The root cause was identified as a misconfiguration on BBIX’s side, one of our upstream providers in Japan.
We have rerouted traffic through an alternative network device, and services are now operating normally.

BBIX is still working on correcting the misconfiguration on their end,
and we will provide an update once their remediation is fully completed.

이전에 보고되었던 일본 POP에서 한국 구간으로의 연결성 문제는 복구 완료되었습니다.

문제는 일본 POP의 업스트림 중 하나인 BBIX 측의 설정 오류(misconfiguration) 로 인해 발생한 것으로 확인되었으며,
현재 당사에서는 대체 네트워크 경로를 통해 트래픽을 우회하여 서비스가 정상화된 상태입니다.

BBIX 측의 설정 오류는 여전히 수정 중이며,
완전한 복구를 위해 해당 팀의 조치가 완료되는 대로 다시 안내드리겠습니다.

Earlier connectivity issues in the Tokyo (TYO) region were traced to one of our upstream providers, where a distribution router failed to correctly learn a portion of MAC addresses. This caused excessive broadcast traffic and congestion on access switches, resulting in degraded connectivity for some routes.

According to the upstream provider, the affected router has been restored to production and network connectivity is now stable.

Our upstream provider has reported an issue in the Tokyo (TYO) region affecting one of their distribution routers, which may cause intermittent instability and degraded connectivity on certain paths.

We have engaged the upstream provider and they are working on remediation. We have applied mitigations on our side (including traffic rerouting where feasible) and continue to monitor closely.

Further updates will be provided as more information becomes available.