Direct peering

Peering refers to interconnection of tenants in different data centers or tenants with external networks through peering routers at the data center demarcation points.

Customer premises are any premises external to the DT Cloud Services cloud, such as a NatCo or partner data center, another public cloud or an office environment. Connection to local user resources can be realized using different options.

Direct Connect

Peering can be realized by using a direct connection between the customer and the DT Cloud Services network. This type of connection is using MPLS/VPN traffic isolation inside the DT Cloud Services network and eBGP connection to the customer network (multiple, per VRF, or BGP connections are supported). This type of connection enables the best performance combined with the lowest latency. Interconnection requires the establishment of network peering of two different administrative networks, so automation is not possible. Each request is realized on demand.

The DT Cloud Services backbone redundantly connects all DT Cloud Services data centers across Europe. It also provides R2 routers as peering points to the Internet, DT and NatCo networks. Private peering between DT Cloud Services datacenters and local NatCo networks is available in the countries Hungary, Greece, Croatia, Northern Macedonia, Austria, Montenegro and Germany. Internet peering is available in Hungary, Poland and Germany.

Collocation router

Peering can also be enabled by using a collocation router, where the router is owned and maintained by the customer. DT Cloud Services is providing connections from the internal cloud networks to the router. The customer is then responsible for the connection from the collocation router to their own premises.

Peering to customer premises, always bypass the NAT function. The customer is responsible for IPv4 address allocation and must ensure addresses are not overlapping. No security rules or traffic filtering is used for these interconnections.

The customer can set up an IPSec VPN from inside the tenant, but in this case, DT Cloud Services cannot guarantee functionality, performance or provide help in configuration or troubleshooting.

More details on peering can be found under Concepts in Use cases and Packet backbone network