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4.1 Changes
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Re: Intermittent Heartbeats
Byron Coetzee / Net2s <>
27 May 2005 11:00AM ETHi,
from the 4.2 spec on heartbeats.....
Heartbeats:
During periods of message inactivity, FIX applications will generate Heartbeat messages at regular time intervals. The heartbeat monitors the status of the communication link and identifies incoming sequence number gaps. The Heartbeat Interval is declared by the session initiator using the HeartBtInt field in the Logon message. The heartbeat interval timer should be reset after every message is transmitted (not just heartbeats). The HeartBtInt value should be agreed upon by the two firms and specified by the Logon initiator and echoed back by the Logon acceptor. Note that the same HeartBtInt value is used by both sides, the Logon “initiator” and Logon “acceptor”.
iow. if its "heartbeating" via other messages the actual heartbeat is not necessary.
Regards
Byron Coetzee
Net2S
> Hi All,
>
> I'm fairly new to FIX and have started work on a live messaging hub
> where I've noticed that some clients are experiencing intermittent
> Heartbeats. This occurs where a client send a login message with a
> Heartbeat interval time of (on average) 60 seconds. They may happily
> send messages for most of the day, receiving Heartbeats every minute and
> then suddenly not recieved any Heartbeats for the next three minutes as
> messaging continues.
>
> Are Heartbeats prone to 'interference' or delay of some kind?
>
> Thanks in advance.
>
> Cameron
Re: Intermittent Heartbeats
Byron Coetzee / Net2s 27 May 2005 11:00AM ET
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