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All connections at the facility are single-mode fiber. A and B feeds are sourced from the same data center.

GLink Connectivity Procedures

Customer Requirements

For GLink connectivity, customers must meet the following requirements:

At a minimum the customer must support Layer 3 protocols. It is recommended that the customer facilitate the termination of each GLink cross-connect in a redundant configuration.
Warning
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To preserve infrastructure integrity, CME Group will close the port for a device not conforming to protocol specifications.
GLink termination must be on customer equipment inside the respective colocation Licensed Space
Customers must be able to terminate 1310nm 10Gbps Ethernet (10G-LR) via a transceiver or fixed port in their equipment
Customer equipment must support the following protocols: Ethernet, IP, BGP, and PIM Sparse Mode
Customer IP packets must be sourced from the IP range assigned by CME Group

Do not use media converters
Terminate the GLink on a L3 switch
Put IP address of point-to-point network provided by CME on interface terminating GLink

Customer routers must be capable of using advanced TCP/IP Protocols including BGP and multicast, specifically PIM Sparse Mode.
BGP routing must be used on the routers terminating CME Group connections.
It is recommended that customers use a routing protocol between their routers to provide automatic failover.
All IP packets destined for CME Group must be sourced from CME Group-assigned private address space.
Multicast PIM Sparse Mode must be used.
Customers have the ability to advertise more specific routes on the GLink connections to allow for routing failover and fault tolerance.

The following restrictions apply to GLink connectivity:

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Note
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To preserve infrastructure integrity, CME Group will close the port for a device not conforming to protocol specifications.