DMIT has implemented a new transfer billing strategy for HKG.T1, SJC.T1;
The transfer counting method for all packages listing above have been changed to measure Max(IN, OUT).
Please note: Due to this change, two non-existing data fields were introduced;
1. [Outgoing Traffic], [Incoming Traffic] will be obtained by averaging [Traffic Statistics] at 8/15 19:00 UTC;
2. The IN/OUT transfer will be counted by the system after 0:00 UTC on 8/16 respectively;
3. [Traffic Statistics] will take the maximum value from [Outgoing Traffic], [Incoming Traffic];
4. the UI will be updated to show this update ASAP;
5. Since most users' billing cycle days are not near this change, this will result in the system counting transfer that is not consistent with your own traffic statistics; Please do not worry about it; the change will not reduce your available transfer.
The transfer counting method for all packages listing above have been changed to measure Max(IN, OUT).
Please note: Due to this change, two non-existing data fields were introduced;
1. [Outgoing Traffic], [Incoming Traffic] will be obtained by averaging [Traffic Statistics] at 8/15 19:00 UTC;
2. The IN/OUT transfer will be counted by the system after 0:00 UTC on 8/16 respectively;
3. [Traffic Statistics] will take the maximum value from [Outgoing Traffic], [Incoming Traffic];
4. the UI will be updated to show this update ASAP;
5. Since most users' billing cycle days are not near this change, this will result in the system counting transfer that is not consistent with your own traffic statistics; Please do not worry about it; the change will not reduce your available transfer.
/var/log/DMIT-NOC.log
DMIT LAX has connected with China Mobile NII (AS58807); The direction of China Mobile > DMIT routing is now going thru the AS58807 Shanghai - Los Angles direct path. The returning traffic is still going thru CN2 AS4809 Los Anglese > Shanghai.
IPv6
DMIT > China: CT CU CM over CMNI2 has been completed.
China > DMIT: CM over CMIN2 has been completed.
Please reach us if your China IPv6 address isn’t go thru CMIN2.
DMIT > China: CT CU CM over CMNI2 has been completed.
China > DMIT: CM over CMIN2 has been completed.
Please reach us if your China IPv6 address isn’t go thru CMIN2.
/var/log/DMIT-NOC.log
IPv6 DMIT > China: CT CU CM over CMNI2 has been completed. China > DMIT: CM over CMIN2 has been completed. Please reach us if your China IPv6 address isn’t go thru CMIN2.
We just received the route update from CMIN2; it takes time to optimization.
Observed IPv6 for CU CT is still going thru Internet IPT.
We will make changes after peak hours.
Keep you posted.
Observed IPv6 for CU CT is still going thru Internet IPT.
We will make changes after peak hours.
Keep you posted.
/var/log/DMIT-NOC.log
We just received the route update from CMIN2; it takes time to optimization. Observed IPv6 for CU CT is still going thru Internet IPT. We will make changes after peak hours. Keep you posted.
Due to China domestic reason; AS4134/AS4837 won't announce some prefixes of their network to AS9808 / AS58807;
Current IPv6 China routing is the best we could offer.
Current IPv6 China routing is the best we could offer.
The snapshot function for all HKG plans will be available today soon.
/var/log/DMIT-NOC.log
https://www.dmit.io/pages/summer-sale-2023 🫡
One last event.
Say good bye to summer 😺
Say good bye to summer 😺
Recommendations for our friends who have access to China Premium ISPs such as AS4809 directly:
1. Please do not directly put high BGP Local Preference for all routes of AS4809;
2. Use low BGP Local Preference for ASNs matching AS4134, AS4837, AS9808, AS4538, AS23910, AS4847, AS7497, etc. on Internet ISPs (AS1299, AS6939, AS174 etc.);
Why:
- This configuration lowers the priority of China routes on Internet ISPs;
- Also avoid select the international customer routes of CN2(AS4809), CMI(AS58453), CMIN2(AS58807), CUG(AS10099, AS9929, AS4837).
- It also could prevent use premium ISP to transit traffic of some south asian ISP. They are customer of AS4837, and AS4809 will accept those route from AS4134/A4837 as "domestic".
- Also avoid using the 1Gbps African backbone of AS4809.
- Reduce paying extra fee to China ISPs.
- Lower latency of Internet traffic, include IDC <> IDC.
- Avoid international traffic routing go thru China. (Latency, and availability.)
[ Send this meesage to your other China VPS, IDC, ISP vendor. ]
1. Please do not directly put high BGP Local Preference for all routes of AS4809;
2. Use low BGP Local Preference for ASNs matching AS4134, AS4837, AS9808, AS4538, AS23910, AS4847, AS7497, etc. on Internet ISPs (AS1299, AS6939, AS174 etc.);
Why:
- This configuration lowers the priority of China routes on Internet ISPs;
- Also avoid select the international customer routes of CN2(AS4809), CMI(AS58453), CMIN2(AS58807), CUG(AS10099, AS9929, AS4837).
- It also could prevent use premium ISP to transit traffic of some south asian ISP. They are customer of AS4837, and AS4809 will accept those route from AS4134/A4837 as "domestic".
- Also avoid using the 1Gbps African backbone of AS4809.
- Reduce paying extra fee to China ISPs.
- Lower latency of Internet traffic, include IDC <> IDC.
- Avoid international traffic routing go thru China. (Latency, and availability.)
[ Send this meesage to your other China VPS, IDC, ISP vendor. ]
/var/log/DMIT-NOC.log
We just received the route update from CMIN2; it takes time to optimization. Observed IPv6 for CU CT is still going thru Internet IPT. We will make changes after peak hours. Keep you posted.
We received updated IPv6 annoucement, from previous total 200- prefixes to current 14k+;
The IPv6 of CT CU CM should have better connectivity now.
The IPv6 of CT CU CM should have better connectivity now.
With the return routing optimization; the latency obviously better than thru Internet ISP. (compare with the lantecy of uplink hops.)
There will be an unscheduled maintenance in the coming hours.
Work scope: Perform an upgrade on DMIT's Los Angeles core router.
Impact: 2 hours network downgraded, up to 1 hour network disconnection.
Work scope: Perform an upgrade on DMIT's Los Angeles core router.
Impact: 2 hours network downgraded, up to 1 hour network disconnection.
RETN Maintenance
Planned work on RETN network to upgrade router's software.
New start time: 20.09.2023 20:00 UTC
New end time: 21.09.2023 00:00 UTC
New outage: 4 h
Location: China, Hong Kong
Planned work on RETN network to upgrade router's software.
New start time: 20.09.2023 20:00 UTC
New end time: 21.09.2023 00:00 UTC
New outage: 4 h
Location: China, Hong Kong
DMIT plan to do following network architecture changes:
New Layer 3 support on hosts, router, access switches with current virtualization hypervisor.
1. Disable ARP and ICMPv6 broadcast in LAN network.
2. Isolated VM domain.
3. Enable IPv6 SLAAC.
Benifit:
1. Reduce broadcast packet amplification in kernel, bridge, and network infrastructure.
2. Prevent broadcast packet uses unnecessary interruption.
3. Improve over all performance. ( Less interruption, less CPU usage in both hypervisor and guest VM. )
4. Offering stateless IPv6, and IPv4 DHCP.
5. Reduce load of router control panel.
6. Reduce ARP traffic consumption on guest VM.
DMIT will apply this based on the following order:
SJC TYO HKG LAX
Expected behavior:
1. Possible disconnection.
2. IPv6 unreachable. ( reboot & cloud-init support requires to automatic update. )
3. IPv4 configuration become /32 (previously /24); gateway is not in the same subet of address.
4. IPv6 configuration become /64 (previously /48); accept_ra = 1 or 2 is required; gateway become link local.
New Layer 3 support on hosts, router, access switches with current virtualization hypervisor.
1. Disable ARP and ICMPv6 broadcast in LAN network.
2. Isolated VM domain.
3. Enable IPv6 SLAAC.
Benifit:
1. Reduce broadcast packet amplification in kernel, bridge, and network infrastructure.
2. Prevent broadcast packet uses unnecessary interruption.
3. Improve over all performance. ( Less interruption, less CPU usage in both hypervisor and guest VM. )
4. Offering stateless IPv6, and IPv4 DHCP.
5. Reduce load of router control panel.
6. Reduce ARP traffic consumption on guest VM.
DMIT will apply this based on the following order:
SJC TYO HKG LAX
Expected behavior:
1. Possible disconnection.
2. IPv6 unreachable. ( reboot & cloud-init support requires to automatic update. )
3. IPv4 configuration become /32 (previously /24); gateway is not in the same subet of address.
4. IPv6 configuration become /64 (previously /48); accept_ra = 1 or 2 is required; gateway become link local.