OLO Access - Resiliency Types

Overview

Interoute can deliver local tails with several resiliency options to ensure diversity is achieved to further increase the service availability. Interoute can connect customer sites in multiple locations and countries with an enhanced protection to provide services that best suit customer’s business requirements.

Interoute can offer a variety of diverse physical local accesses to all connection based services. It is achieved by procuring two individual leased lines. These can either be sourced from a single provider (OLO) or from two different OLOs. Please note, if a full resiliency is required the quotes need to be obtained from a single OLO so they can guarantee the paths diversity and make sure the lines enter the building from two different entry points if requested.

Likewise, Interoute can provide quotations to have diverse local tails connected into two geographically separated Interoute PoPs or to terminate them on two different Provider Edge equipments within the same PoP. Where applicable, the diverse tails can be terminated on dual geographically separated 3rd party Interconnects (NNIs).

Interoute can also design a service with dual CPE routers. Combining these options, any single point of failure for the following network components can be eliminated:

• Third Party local access circuits
• Interoute Point-of-Presence (PoP)
• Customer Premises (CPE) routers
• Termination Equipment / Interface at Interoute PoP:

- Provider Edge (PE) access routers

- 3rd Party (OLO) Interconnects (NNIs)

• Diverse entry paths at the Customer Site:[1]

- Points of Entry to the building

- OLO Network Termination Equipment (NTE)

- In-house cabling between NTE and CPE (in case of fully managed services)[2]

Access Options

Type A

• Single PoP
• Single PE router in the PoP / single NNI
• Single local tail
• Single entry to the building

Type A is a single tail with no resiliency. When no diversity requested, Type A is the default option that will be quoted by Offnet Pricing team.

Type B1

• Single PoP
• Single PE router in the PoP / single NNI
• Dual local tails
• Single entry to the building

Type B1 access is a scenario where local tails lead over diverse paths. They are connected to the same PoP and the same PE Equipment (or NNI where applicable). They use a common point of entry to the customer building.

Type B2

• Single PoP
• Dual PE routers in the same PoP
• Dual local tails
• Single entry to the building

Type B2 access is a scenario where local tails lead over diverse paths. They are connected to the same PoP but terminated on dual PE access routers to provide additional resiliency. The tails use a common point of entry to the customer building.

Type C1

• Single PoP
• Single PE router in the PoP / single NNI
• Dual tails
• Dual entry to the building

Type C1 access is a scenario where local tails lead over diverse paths. They use two different points of entry to the customer building. Notice that Type C tails are connected to the same PoP and PE equipment (or NNI where applicable).

The quote for both tails needs to be obtained from the same provider so the OLO can gurantee the dual building entries. Providing dual CPEs is recommended for Type C scenario.

Type C2

• Single PoP
• Dual PE routers in the same PoP
• Dual tails
• Dual entry to the building

Type C2 access is a scenario where local tails lead over diverse paths. They use two different points of entry to the customer building. Notice that Type C tails are connected to the same PoP but terminated on dual PE access routers to provide additional resiliency.

The quote for both tails needs to be obtained from the same provider so the OLO can gurantee the dual building entries and two separated NTEs. Providing dual CPEs is recommended for Type C scenario.

Type D

• Dual PoPs
• Dual PE routers / dual NNIs
• Dual tails
• Single entry to the building

Type D access is a scenario where local tails lead over diverse paths. They are connected to two different PoPs (or NNIs where applicable) but enter the customer building via the same point (or with no guarantee of dual entry to the building). Multiple OLO providers can be contacted for a quotation of each local tail.

Type E

• Dual PoPs
• Dual PE routers / dual NNIs
• Dual tails
• Dual entry to the building

Type E access is a full resiliency scenario. Local tails lead over diverse paths. They are connected to two different PoPs (or NNIs where applicable). They enter the customer building through two separate points.

The quote for both local tails needs to be obtained from the same provider so the OLO can gurantee the dual building entries. Providing dual CPEs is strongly recommended for Type E scenario in order to provide a service with highest resiliency possible.

How to obtain a quote

Wherever diverse local tails are required the account team needs to mention what type of resiliency is required!

There are seven options as described above.

Availability of any diversity options cannot be guaranteed. The quotes are subject to site survey.

• When raising the OLO quote request in the Offnet Quotes Tool (ONQT), select the requested option from the “Access diversity” drop down menu.

[In case you are not sure which resiliency option you need, use the “?” button, which is a hyperlink to the detailed list of Diversity types.]

Create two separate Bid Line Items – one for each leg of the diverse solution.

Please mention in the “Additional Information field” – “Diverse solution, Main Link” and “Diverse solution, Backup Link” in the respective Bid Line Item.

• When raising the OLO quote request in the Offnet Quotes Database (QDB), create two separate Bid Line Items – one for each leg of the diverse solution. Please mention the Resiliency type (B1, C2 etc.) in the “Additional Requirements – Other” field.

Further Information & Support

• For OLO access related queries and quotation, please ask Offnet Pricing team or regional carrier specialists.
• For product related queries and commercial impact discussions please contact relevant Product Manager.
• For pre-sales design assistance consult the Sales Engineer and/or Solutions in more complex cases.

1

[1] The resiliency types describe a single or diverse entry to the building but don’t mention dual NTE and diverse in-house cabling options. There is a possibility that whenever there is a dual entry to the building, the local tails are terminated on two separate OLO NTEs and use separate in-house cabling and therefore enhancing the resiliency even further. However, the availability cannot be guaranteed and is subject to site survey.

[2] In case of unmanaged services the Interoute demarcation point on the customer premises is the NTE and Interoute has no responsibility over inhouse cabling and supply of any equipment which customer wants to connect to this NTE.