September 26, 2013 12:11:24
Please be advised that BATS BYX Exchange is in process of failing over to the Chicago secondary site. BATS encourages Members to connect to Chicago. BATS will advise with a time when BYX Exchange is ready to reopen out of Chicago.
Please note that sequence numbers on all FIX sessions will need to be reset to 1.
BZX Exchange and BATS Options are not impacted and will continue to trade out of the primary data center.