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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, Colocation Transit Service and IPv6 Native Service.

*In case of IPv4

Service Quality

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

NTT Com monitors Customer’s router connected to Global IP Network by sending ping repeatedly. If Customer’s router does not respond for 5 consecutive minutes, NTT Com will determine the Service is unavailable and will notify Customer by E-mail within 30 minutes after such determination.

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-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.

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