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Oracle FastConnect Overview

Oracle Cloud Infrastructure FastConnect is a private, dedicated network connection between your enterprise network and Oracle Cloud, replacing the public internet for OCI workloads. IZO™+ Multi Cloud Connect delivers FastConnect as a fully managed service over Tata Communications’ MPLS backbone.  

IZO™+ Multi Cloud Connect supports both Tata Communications-managed direct interconnects (1–25 Gbps) and partner-routed paths (10 Mbps–10 Gbps). Both Layer 3 (with BGP) and Layer 2 (EoMPLS tunnel) service types are supported, with Private and Public peering modes. Tata Communications uses ASN 4755; Oracle uses ASN 31898. For OCI-side concepts (the FastConnect offering, VCN setup, Dynamic Routing Gateway), see Oracle’s Cloud Infrastructure documentation. 

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How Tata Communications delivers FastConnect

When you order Oracle connectivity through IZO™+ Multi Cloud Connect:

  1. You create a FastConnect circuit in your Oracle Cloud console, selecting Tata Communications as the service provider.

  2. Oracle generates an OCI/VC-ID. You share this with Tata Communications via the TCx Portal.

  3. Tata Communications inputs the partner-side parameters (ASN, peering subnet, VLAN/C-tag, MD5 key for L3) through the partner portal.

  4. The configuration reflects automatically in your Oracle portal – no re-entry from your side.

  5. BGP comes up between the Tata Communications MPLS PE router and Oracle’s edge.

            This Provider-Managed Peering model simplifies provisioning by eliminating customer-side configuration of peering parameters. On the default Layer 3 delivery a single OCI/VC-ID is required and Tata Communications runs the BGP to Oracle, so there is nothing for you to configure on your CPE. Layer 2 uses two OCI/VC-IDs and you run BGP to Oracle yourself.

            Connection paths

            IZO™+ Multi Cloud Connect offers two paths to Oracle FastConnect.

            Capability

            Tata Communications-managed direct

            Interconnection Partner-routed

            Bandwidth range

            1–25 Gbps

            10 Mbps–10 Gbps

            25 Gbps support

            Yes (on 100 Gbps interconnects)

            No

            Sub-1 Gbps slabs

            No

            Yes (10/50/200/500 Mbps)

            MTU

            1500 to 9000

            1500 to less than 9000

            L2VPN service

            Yes (EoMPLS)

            Yes

            L3VPN service

            Yes (BGP, Private/Public peering)

            Yes (BGP, Private/Public peering)

            Bandwidth changes

            Supported (initiated in the Oracle portal) 

            Supported (initiated in the Oracle portal) 

            Choose the direct path for production workloads at 1 Gbps or above. Choose the partner-routed path for sub-1 Gbps requirements or where the desired metro is better served via an Interconnection partner.

            Service types: L3 and L2

            Oracle FastConnect via IZO™+ Multi Cloud Connect supports both L3 (BGP routing managed by Tata Communications) and L2 (transparent transport with customer-managed BGP):

            • Layer 3 Private peering – Tata Communications allocates the peering subnet (/30 private) and manages BGP with Oracle. Reaches resources in your VCN.

            • Layer 3 Public peering – Oracle allocates the peering subnet. Reaches Oracle public services (Object Storage, Autonomous Database, OCI APIs) over the dedicated connection. A public ASN is required on the customer side.

            • Layer 2 services – Tata Communications provides Dot1Q tagging via an EoMPLS tunnel; you manage IP addressing and BGP directly with Oracle. For L2, you must create two separate OCI/VC-IDs (primary and secondary) to maintain Oracle’s standard dual-circuit resiliency.

                  Bandwidth

                  Standard bandwidth tiers on the direct path are 1, 2, 3, 4, 5, 10 and 25 Gbps (25 Gbps requires a 100 Gbps Oracle interconnect). Via the partner-routed path: 10, 50, 200 and 500 Mbps and 1, 2, 5 and 10 Gbps. Bandwidth changes are initiated by you in the Oracle portal, subject to capacity. The full routing detail – ASNs, transit subnets, BFD, prefix limits and path control – is on Oracle Routing and BGP Configuration.

                  Circuits are delivered over dual interconnects to Oracle, see Oracle Resiliency and High Availability for the resilience and path-control detail. 

                  What’s on the Oracle side

                  These are configured in your Oracle Cloud console:

                  • Creating the FastConnect circuit and selecting Tata Communications as the service provider

                  • Celecting Layer 3 vs Layer 2 and Private vs Public peering

                  • Virtual Cloud Network (VCN) and Dynamic Routing Gateway (DRG) setup; and VCN route-table configuration.

                  For a Layer 2 service you also configure, on the Oracle side and your CPE, the BGP IP subnet, ASN and MD5 key – on Layer 2 the addressing and BGP are customer-managed. 

                        The end-to-end walkthrough is on Oracle FastConnect Setup (Direct Interconnect).

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