ATB212E

Explanation
 This message is issued during APPC/MVS resynchronization
or exchange log name processing when an error is detected by luname1 in
the negotiated syncpoint capabilities sent by luname2.
The partner responded with an indication that it supports a capability
that APPC/MVS does not support.
 In the message text:  luname1
The name of the LU that detected the protocol violation.
luname2
The name of the LU that generated the protocol violation.

System action
 If this message is issued during APPC/MVS resynchronization
processing to resolve incomplete units of recovery, resynchronization
does not continue. Resynchronization will be attempted again automatically
at a later time.
 If this message is issued during an exchange
log name interchange preceding a protected conversation allocate or
inbound attach request, the protected conversation between the local
and partner LU is not allocated. No protected conversations between
the local and partner LU will be allocated until the protocol violation
can be corrected.

Operator response
 Contact the operator at LU luname2 to
determine the cause of the error.

System programmer response
 Examine the logrec data set of the
local LU's system. When a protocol violation is detected during the
transaction exchange of Exchange Log Names GDS variables or Compare
States GDS variables, APPC/MVS records diagnostic information pertaining
to the protocol violation made by the partner LU system. APPC/MVS
sends message ATB70051I or ATB70056I to the partner system as log
data when deallocating the resynchronization conversation abnormally.

Module
 ATBPCRS

Source
 APPC/MVS

Routing Code
 2

Descriptor Code
 4

Automation
 This message cannot be automated.
System programmer action is required.