Notice of Upcoming Network & Support Changes

IEX Trading Alert #2016 - 060

Overview

In an ongoing effort to streamline network connectivity with Investors Exchange, IEX will discontinue legacy customer-facing IP prefixes on January 9, 2017. Per IEX Trading Alert #2016-030, IEX increased the number of IP prefixes over cross-connects to facilitate new services, including TOPS v1.5 and unicast market data retransmission (i.e. gap fill) servers. Market participants who wish to continue to receive these services must accept the new IP prefixes provided below by Monday, January 9. Please also note that after TOPS v1.4 is decommissioned on December 16, 2016 (as announced in IEX Trading Alert #2016-047), participants will only be able to receive TOPS v1.5 via these new IP prefixes.

IEX is also retiring legacy equipment and will discontinue network support for 1GB cross-connects after December 31, 2016. Those participants not already on 10GB cross-connects should reach out to Network or Market Operations to coordinate either (1) an upgrade of existing cross-connect(s) or (2) an order of replacement cross-connect(s). If you have any questions or concerns, please reach out to Market Operations.

Participants are reminded that all connectivity, both physical and logical, to Investors Exchange is FREE.

IEX IP Prefixes over Cross-Connects

IEX provided new IP prefixes over cross-connects to facilitate the following new services (among others):

  • 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.

Participants must ensure that they are accepting the new prefixes provided below. Participants who fail to accept these new prefixes will not be able to receive the above new services, including TOPS v1.5, and will lose connectivity to their sessions after the legacy prefixes are withdrawn on Monday, January 9. Once your firm is accepting the new prefixes for a specific cross-connect, please notify Market Operations (marketops@iextrading.com). Market Operations will track the migrated cross-connects and the legacy IEX IP prefixes will be withdrawn.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.

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)

More Information

Please contact IEX Network Operations, Market Operations or Sales with any questions:

About IEX

IEX is on a mission to build fairer markets. Founded in 2012 and headquartered in New York City, IEX introduced its first trading venue in 2013 and launched as a U.S. stock exchange in 2016. IEX is the stock exchange that believes that every investor has the right to trade on equal and fair terms, on every trade. Learn more at: iextrading.com.