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[FINISHED][Re-scheduled] SINET Network Maintenance Information


(Updated: Mar. 6, 2022) All scheduled work has been completed. Thank you for your cooperation.

(Updated: Feb. 22, 2022) The work schedule has been added.

(Updated: Feb. 10, 2022) After readjustment, the schedule has been fixed as follows.

(Updated: Feb. 6, 2022) SINET maintenance has been postponed. When a new date is established, it will be communicated here.

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Due to the migration to SINET6, there will be an impact on Keio's network traffic as follows.
We apologize for any inconvenience this may cause, and ask for your understanding and cooperation.

Impacts

(1) [FINISHED] Friday, February 11, 2022, from 10:30a.m. to 12:10p.m. (scheduled time for suspend: between 11:00a.m. and 11:40a.m.)
Osaka City Campus (KOCC)
During the above time, there will be two communication interruptions of up to 30 minutes.
Depending on the progress of the work, the disconnection time may vary within the work period.
(2) [FINISHED] Sunday, February 13, 2022, from 10:30a.m. to 12:00p.m. (scheduled time for suspend: between 11:00a.m. and 11:30a.m.)
Tonomachi Town Campus
During the above time, there will be a communication interruptions of up to 30 minutes.
Depending on the progress of the work, the disconnection time may vary within the work period.
(3) [FINISHED] Sunday, February 20, 2022, from 6:30p.m. to 8:30p.m. (scheduled time for suspend: between 7:00p.m. and 8:00p.m.)
All Campuses
During the above time, there is a possibility of unstable communication across all campuses several times. (*)
(4) [FINISHED] Sunday, February 27, 2022, from 5:30p.m. to 7:30p.m. (scheduled time for suspend: between 6:00p.m. and 7:00p.m.)
All Campuses
uring the above time, there is a possibility of unstable communication on all campuses several times. (*)
In the following cases, communication interruption and service suspension will be occur for up to 30 minutes during the above time.
(5) [FINISHED] Sunday, March 6, 2022, from 10:30a.m. to 12:00p.m. (scheduled time for suspend: between 11:00a.m. and 11:30a.m.)
Tsuruoka Town Campus (TTCK)
During the above time, there will be a communication interruptions of up to 30 minutes.
Depending on the progress of the work, the disconnection time may vary within the work period.
Depending on the progress of the work, the disconnection time may vary within the work period.
- WiFi access (eduroam) on all campuses
- Tsuruoka Town Campus (TTCK)
- Tonomachi Town Campus
- Osaka City Campus (KOCC)
- Use of Certificate Issuance Service at convenience stores
(*) Side effects of network instability
- Slow response when browsing web pages, websites, etc.
- Interruption or sudden drop in video or sound quality during remote conferencing (Zoom, Webex, etc.)

Last-Modified: March 6, 2022

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