Deletion of Old IPv4 Address Block

By May 19, 2023, 23:30 (UTC +8), all existing IPv4 routes ORIGINATED from SERNET-DN42 will no longer be announced for future IPv4 address renumbering.

Affected Address Block: 172.23.217.0/27 and any specific route in this range.

Affected Network Operation: All IPv4 traffic destinated to / originated from SERNET-DN42

Unaffected Network Operation: IPv4 traffic transits over SERNET-DN42 IPv6 traffic transits over / destinated to / originated from SERNET-DN42

Potential Influences to DN42 Network: Minor route flapping

Responses: No action required