SLA(Service Level Agreement)
NTT Communications provides high-quality Global IP Network Service with industry leading SLA
Global IP Network Service provides customers with the highest SLA in the Internet industry, proving its high-quality Internet backbone service.
Global IP Network Service SLA has performance objectives and performance commitments for Availability, Latency, Packet Loss, Average Jitter, Maximum Jitter and Customer Notification
*. If the levels of service do not meet what is guaranteed,
NTT Com will issue a credit according to the Terms and Conditions of the Internet Gateway Service. This SLA applies automatically to customers of NTT Com's Transit Service and Colocation Connectivity Service.
*In case of IPv4
SLA for IPv4
1.Availability
Global IP Network Service is available to Customers 100% of the time.
2.Latency
Global IP Network Service guarantees the monthly average round-trip packet transmission (Latency) within the
NTT Com Global IP Network.
| Region |
Reference value (Latency) |
| Intra-Japan |
25ms |
| Intra-Asia |
95ms |
| Intra-US |
60ms |
| Intra-Europe |
35ms |
| Trans-Atlantic |
90ms |
| Japan-US |
130ms |
| Japan-Europe |
300ms |
3.Packet Loss
Global IP Network will maintain monthly average packet loss rate 0.3% or less for above regions.
4.Average Jitter
The Average Jitter on the backbone will be 0.5 milliseconds or less for above regions.
5.Maximum Jitter
The Maximum Jitter on the backbone will not exceed 10 milliseconds more than 0.1% of a calendar month for above regions.
6.Customer Notification
In case of outage,
NTT Com will notify Customers within 30 minutes by E-mail or fax.
SLA for IPv6
1.Availability
Global IP Network Service is available to Customers 100% of the time.
2.Latency
Global IP Network Service guarantees the monthly average round-trip packet transmission (Latency) within the
NTT Com Global IP Network.
| Region |
Reference value (Latency) |
| Intra-Japan |
25ms |
| Intra-US |
60ms |
| Trans-Atlantic |
90ms |
| Japan-US |
130ms |
Intra-Asia |
95ms |
| Intra-Europe |
35ms |
| Japan-Europe |
300ms |
3.Packet Loss
Global IP Network will maintain monthly average packet loss rate 0.3% or less for above regions.