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CME GLink connectivity provides access to: 

  • iLink order entry on the CME Globex platform for futures, options, BrokerTec, and EBS markets
  • Market data for futures, options, BrokerTec, and EBS markets on CME Globex disseminated over the CME Market Data Platform (MDP) 
  • CME Clearing House systems for CME Group markets.

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

GLink Connectivity Procedures

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.

    Warninginfo

    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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