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New IP Prefixes Scheme and TOPS v1.5 Sample Packet Capture

IEX Trading Alert #2016 - 030

Please Route To: Technology, Networking, Market Data, and Trade Support

What you need to know:

  • IEX has increased the number of IP prefixes over cross-connects to allow for new services.
  • Market participants must ensure they are accepting the new IEX prefix scheme to take advantage of new IEX services.
  • IEX has posted a sample packet capture on the Market Data: TOPS page for TOPS v1.5.

What new services will the new IEX IP Prefixes facilitate?

The new IP prefixes will facilitate new services, including, but not limited to the following;

  • TOPS v1.5 and future multicast market data feeds.
  • Unicast market data retransmission (i.e., gap fill) servers.
  • More-specific network prefix for order entry sessions that does not overlap with Chicago DR site address space.
  • More-specific network prefix for the IEX Test Facility ("ITF") in Secaucus.

What are the new IEX IP prefixes?

New Customer-Facing IP Prefixes Scheme

IP Address Purpose Site XC Type

23.226.144.0/21

23.226.155.128/28

23.226.155.160/28

23.226.155.0/29

Order Entry Gateways Summary Prefix

FEEDS-A Multicast Market Data Publishers

FEEDS-A Unicast Market Data Rebroadcasters

ITF

IEX POP

(Equinix NY5)

Primary (A)

23.226.144.0/21

23.226.155.192/28

23.226.155.224/28

23.226.155.0/29

Order Entry Gateways Summary Prefix

FEEDS-B Multicast Market Data Publishers

FEEDS-B Unicast Market Data Rebroadcasters

ITF

IEX POP

(Equinix NY5)

Secondary (B)

Legacy Customer-Facing IP Prefixes Scheme (being removed)

IP Address Purpose Site XC Type

23.226.144.0/20

23.226.155.132/32

Secaucus Summary Prefix

TOPS-A v1.4 Multicast Market Data Publisher

IEX POP

(Equinix NY5)

Primary (A)

23.226.144.0/20

23.226.155.196/32

Secaucus Summary Prefix

TOPS-B v1.4 Multicast Market Data Publisher

IEX POP

(Equinix NY5)

Secondary (B)

What action should participants take?

Market participants need to ensure that they are accepting these new prefixes. Participants who fail to accept these new prefixes will not be able to receive the above new services including TOPS v1.5.

Once your firm is accepting the new prefixes for a specific cross-connect, please notify Market Ops (marketops@iextrading.com). Market Ops will track the migrated cross-connects and the legacy IEX IP prefixes will be withdrawn.

Participants with two or more cross-connects are reminded that these new IP prefixes are more-specific than the legacy customer-facing IP prefixes, and in most circumstances will be preferred. Therefore, please ensure routing preferences of your network(s) if each cross-connect is being updated independently.

Where can my firm find the latest TOPS sample packet capture and what data is in the file?

Firms interested in testing their consumption of TOPS v1.5 may download the latest sample packet capture from the Market Data: TOPS page. The data found in the sample packet capture was captured during the July 9, 2016 Saturday Member testing opportunity.

Where can I learn more?

  • View the Investors Exchange Connectivity Manual.
  • Become a Member of Investors Exchange.
  • Contact IEX network operations at 646.343.2241 or netops@iextrading.com
  • Contact IEX Market Operations at 646.568.2330 or marketops@iextrading.com.
  • Contact IEX Technology Operations at 646.343.2200 or sre@iextrading.com.
  • About IEX

    Dedicated to institutionalizing fairness in the markets, IEX provides a more balanced marketplace via simplified market structure design and cutting-edge technology. IEX operates a fair-access platform accessible by any qualified broker dealer. IEX is driven by a team of cross-industry experts with backgrounds spanning market venues, electronic trading, and broker-dealers. IEX is the first equity trading venue seeded exclusively by a consortium of buy-side investors, including mutual funds, hedge funds, and family offices. Learn more at: iextrading.com.