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G&R » Support » Known Errors  

Known Errors

These are the known errors in our products, logged as reported with versions and platforms affected as well as corrections and work-arounds.

This list is largely historical, since it records all problems that have been reported throughout G&R history. Only the most recently reported problems still exist, unless you are using a very old copy of the product, in which case you should update the product to the most recent version.


E1214: Gline, spanned records failed on input to GCOS

Product: Gline
Platform: All
Status: Fixed in 6.5. Fix available for 6.4
Last updated: 2009-12-09 16:10:49

DSA session negotiation includes the maximum send and receive size for DSA
letters. If user records that exceed this size are sent they are split
into several DSA letters. This is indicated in the protocol using a
'spanned record indicator' in the DSA 'Record segment header'. There are
four indicators (using a two bit field). An indicator of zero (00) says
that the entire user record is carried within the record segment. An
indicator of 1 (01) means that this is the first part of a spanned record
and that more record segments follow in one or more subsequent DSA
letters. An indicator of 3 (11) means that this is an intermediate part of
a spanned record, but not the end, and an indicator of 2 (10) means that
this is the final part of a spanned record.

The spanned record indicator was not being set correctly for user input to
GCOS that exceeded the negotiated letter size.

Note that G&R/Gline by default suggests a letter size of 6k, and accepts
whatever the GCOS side suggests in the negotiation. A letter size of 6k is
normally enough to avoid spanned records on input, although spanned
records can be seen on output of very large user records. Note also that
you can set the G&R/Gline default letter size using the Gline -LL
parameter to change the letter size that we suggest to the GCOS side.
Normally the GCOS side will suggest a size it is happy with, and Gline
will accept that, but you might find the -LL parameter to be necessary in
special circumstances.
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