Explanation
VTAM® issues
this message as part of an HPR path switch summary message group.
This message group is issued only if the HPR path switch message
reduction function is enabled. This message is the first in a group
of messages. The message group displays summary information about
path switch events that occurred during the current HPR path switch
message reduction interval. The full description of the message
group follows the example.
IST2191I HPR PATH SWITCH SUMMARY FROM date AT time
IST2192I STARTED = started
IST2193I TGINOP = tginop SRQTIMER = srqtimer PSRETRY = psretry
IST2194I PARTNER = partner MNPS = mnps UNAVAILABLE = unavailable
IST2336I STALLED = stalled
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
IST924I -------------------------------------------------------------
IST2196I COMPLETED = completed
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
IST924I -------------------------------------------------------------
IST2197I FAILED = failed
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
IST924I -------------------------------------------------------------
IST2198I NETID STARTED COMPLETED FAILED
IST2199I CPNAME NET HI MED LOW NET HI MED LOW NET HI MED LOW
IST2205I --------- --------------- --------------- ---------------
IST2200I netid snn snh snm snl cnn cnh cnm cnl fnn fnh fnm fnl
IST2201I cpname scn sch scm scl ccn cch ccm ccl fcn fch fcm fcl
[IST2205I --------- --------------- --------------- --------------- ]
[IST2200I netid snn snh snm snl cnn cnh cnm cnl fnn fnh fnm fnl ]
[IST2201I cpname scn sch scm scl ccn cch ccm ccl fcn fch fcm fcl ]
IST924I -------------------------------------------------------------
IST2206I events PATH SWITCH EVENTS FOR cps CPS in netids NETIDS
IST314I END
IST924I - This message is a line separator between various sections of
the HPR path switch summary.
IST2191I - The date and time values
specify when the HPR path switch event interval was started. The
information displayed in this message summary is valid from this
date and time. See DATE and TIME formats for
information about the date and time values.
IST2192I
In the message text:
- started
- The total number of RTP pipes that entered path switch.
This is the first message of a subgroup of
messages. The complete message subgroup follows:
IST2192I STARTED = started
IST2193I TGINOP = tginop SRQTIMER = srqtimer PSRETRY = psretry
IST2194I PARTNER = partner MNPS = mnps UNAVAILABLE = unavailable
IST2336I STALLED = stalled
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
Messages
IST2193I, IST2194I and IST2336I identify the various path switch reasons,
along with the number of RTP pipes that entered path switch for each
of these reasons. Message IST2195I lists the number of RTP pipes
that entered path switch by priority.
Results: - The started value is the sum of the path switch
reason counts that are listed in messages IST2193I, IST2194I and IST2336I.
- The started value is the sum of the RTP pipe
priority counts listed in the message IST2195I in this message subgroup.
- Usually, the HPR path switch started count is the sum of the associated
HPR path switch completed and failed counts. The associated HPR path
switch completed or failed counts might be listed in this same display,
or they might be associated with subsequent HPR path switch summary
displays because of different HPRPST time values assigned to each
priority. If the partner path switch started reason listed in message
IST2194I is a nonzero value, it is possible that the associated HPR
path switch completed or failed counts might not add up to the path
switch started count. When both RTP partners initiate a path switch
at approximately the same time, the started count might display higher
by the value listed in the partner field of message IST2194I. This
can cause two path switch started events in which only one completes
successfully or unsuccessfully.
IST2193I
In the message text:
- tginop
- The number of RTP pipes that entered path switch because an inoperative
condition occurred on the physical TG. See IST1819I for a complete description
of this path switch reason.
- srqtimer
- The number of RTP pipes that entered path switch because the
short request retry limit was exhausted. See IST1818I for a complete description
of this path switch reason.
- psretry
- The number of RTP pipes that entered path switch because of the
PSRETRY function. See IST1821I for
a complete description of this path switch reason.
IST2194I
In the message text:
- partner
- The number of RTP pipes that entered path switch because the partner
initiated path switch. See IST1937I for
a complete description of this path switch reason.
- mnps
- The number of RTP pipes that entered path switch because of the
recovery of an MNPS application. See IST2239I for a complete description
of this path switch reason."
- unavailable
- The number of RTP pipes that entered path switch because either
the underlying physical connection or the RTP pipe itself is not
suitable for RTP traffic. See IST1817I for
a complete description of this path switch reason.
IST2195I
This message is included
in various message subgroups headed by message IST2192I, IST2196I,
or IST2197I. See the description of those messages for a complete
description.
In the message text:
- network
- The number of network priority RTP pipes that started, successfully
completed, or failed to path switch.
- high
- The number of high priority RTP pipes that started, successfully
completed, or failed to path switch.
- medium
- The number of medium priority RTP pipes that started, successfully
completed, or failed to path switch.
- low
- The number of low priority RTP pipes that started, successfully
completed, or failed to path switch.
IST2196I
In the message text:
- completed
- The total number of RTP pipes that successfully completed a path
switch.
This is the first message of a subgroup of
messages. The complete message subgroup follows:
IST2196I COMPLETED = completed
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
Message
IST2195I lists the number of RTP pipes by priority that successfully
completed a path switch.
Results:- The completed value is the sum of the RTP pipe
priority counts listed in the message IST2195I in this message subgroup.
- Usually, the HPR path switch started count is the sum of the associated
HPR path switch completed and failed counts. The associated HPR path
switch completed or failed counts might be listed in this same display,
or they might be associated with subsequent HPR path switch summary
displays because of different HPRPST time values assigned to each
priority. If the partner path switch started reason listed in message
IST2194I is a nonzero value, it is possible that the associated HPR
path switch completed or failed counts might not add up to the path
switch started count. When both RTP partners initiate a path switch
at approximately the same time, the started count might display higher
by the value listed in the partner field of message IST2194I. This
might cause two path switch started events in which only one completes
successfully or unsuccessfully.
IST2197I
In the message text:
- failed
- The total number of RTP pipes that failed to path switch.
This is the first message of a subgroup of
messages. The complete message subgroup follows:
IST2197I FAILED = failed
IST2195I NETWORK = network HIGH = high MEDIUM = medium LOW = low
Message
IST2195I lists the number of RTP pipes by priority that failed to
path switch.
Results: - The failed value is the sum of the RTP pipe
priority counts listed in message IST2195I in this message subgroup.
- Usually, the HPR path switch started count is the sum of the associated
HPR path switch completed and failed counts. The associated HPR path
switch completed or failed counts might be listed in this same display,
or they might be associated with subsequent HPR path switch summary
displays because of different HPRPST time values assigned to each
priority. If the partner path switch started reason listed in message
IST2194I is a nonzero value, it is possible that the associated HPR
path switch completed or failed counts might not add up to the path
switch started count. When both RTP partners initiate a path switch
at approximately the same time, the started count might display higher
by the value listed in the partner field of message IST2194I. This
might cause two path switch started events in which only one completes
successfully or unsuccessfully.
IST2198I - This message is the first of two header messages for the information
displayed in messages IST2200I and IST2201I.
IST2199I - This message is the second of two header messages for the information
displayed in messages IST2200I and IST2201I.
IST2200I
This is the first message of a subgroup
of messages. One IST2200I message is issued for each partner NETID
affected by the reported HPR path switch events. This message subgroup
provides HPR path switch information unique to the reported NETID.
This message subgroup can be issued for up to 10 partner NETIDs.
The
complete message subgroup follows the example.
IST2200I netid snn snh snm snl cnn cnh cnm cnl fnn fnh fnm fnl
[IST2201I cpname scn sch scm scl ccn cch ccm ccl fcn fch fcm fcl]
In
the message text:
- netid
- The name of the partner NETID.
Results:- Usually, the NETID-specific HPR path switch counts are the sum
of CP-specific counts reported in the associated IST2201I messages.
However, when the HPR path switch events are associated with more
than 50 partner CPs, the NETID-specific counts might report higher
values than the sum of the CP-specific counts.
- If any of the reported counts display as 999, this indicates that
at least 999 RTP pipes started, successfully completed, or failed
to path switch.
The following describes the contents of the STARTED, COMPLETED
and FAILED columns under message IST2196I:
- STARTED:
- The snn value is the total number of network-priority
RTP pipes that entered path switch.
- The snh value is the total number of high-priority
RTP pipes that entered path switch.
- The snm value is the total number of medium-priority
RTP pipes that entered path switch.
- The snl value is the total number of low-priority
RTP pipes that entered path switch.
- COMPLETED:
- The cnn value is the total number of network-priority
RTP pipes that successfully completed path switch.
- The cnh value is the total number of high-priority
RTP pipes that successfully completed path switch.
- The cnm value is the total number of medium-priority
RTP pipes that successfully completed path switch.
- The cnl value is the total number of low-priority
RTP pipes that successfully completed path switch.
- FAILED:
- The fnn value is the total number of network-priority
RTP pipes that failed to path switch.
- The fnh value is the total number of high-priority
RTP pipes that failed to path switch.
- The fnm value is the total number of medium-priority
RTP pipes that failed to path switch.
- The fnl value is the total number of low-priority
RTP pipes that failed to path switch.
IST2201I
This message is included in a message
group headed by message IST2200I. One IST2201I message is issued
for each partner CP affected by the reported HPR path switch events.
The IST2200I message preceding this message identifies the NETID
of this partner CP. This message provides HPR path switch information
unique to this partner CP. This message subgroup can be issued for
up to 50 partner CPs in 10 NETIDs.
In the message text:
- cpname
- The name of the partner CP.
Results: - If any of the reported counts display as 999, it indicates that
at least 999 RTP pipes started, successfully completed, or failed
to path switch.
The following describes the contents of the STARTED, COMPLETED
and FAILED columns under message IST2196I:
- STARTED:
- The scn value is the total number of network-priority
RTP pipes that entered path switch.
- The sch value is the total number of high-priority
RTP pipes that entered path switch.
- The scm value is the total number of medium-priority
RTP pipes that entered path switch.
- The scl value is the total number of low-priority
RTP pipes that entered path switch.
- COMPLETED:
- The ccn value is the total number of network-priority
RTP pipes that successfully completed path switch.
- The cch value is the total number of high-priority
RTP pipes that successfully completed path switch.
- The ccm value is the total number of medium-priority
RTP pipes that successfully completed path switch.
- The ccl value is the total number of low-priority
RTP pipes that successfully completed path switch.
- FAILED:
- The fcn value is the total number of network-priority
RTP pipes that failed to path switch.
- The fch value is the total number of high-priority
RTP pipes that failed to path switch.
- The fcm value is the total number of medium-priority
RTP pipes that failed to path switch.
- The fcl value is the total number of low-priority
RTP pipes that failed to path switch.
IST2205I - This message is a line separator between various sections of
the HPR path switch summary.
IST2206I
In the message text:
- events
- The sum of the values displayed as started, completed, and failed
in messages IST2192I, IST2196I and IST2197I, respectively.
- cps
- The total number of RTP partner CPs affected by the reported HPR
path switch events. If the cps value displays >
50, more than 50 partner CPs were associated with the reported
HPR path switch events.
- netids
- The total number of partner NETIDs affected by the reported HPR
path switch events. If the netids value displays >
10, more than 10 partner NETIDs were associated with the
reported HPR path switch events.
IST2336I
In the message text:
- stalled
- The number of RTP pipes that entered path switch because VTAM entered the transmit (XMIT)
stalled state. An XMIT stall condition occurs after VTAM retransmits an NLP for the sixth time and
at least 10 seconds has elapsed since the NLP was first retransmitted.
System action
Operator response
Save the system log for problem determination
and contact the system programmer.
System programmer response
Review the system log associated
with the HPR path switch events. The IST2191I message group is being
issued as part of the HPR path switch message reduction function.
Obtain the date and time from message IST2191I to identify the beginning
of the current HPR path switch message reduction interval. Review
the system log generated near this date and time to locate other
relevant information that might identify the reason for the HPR path
switch activity (for example, INOPs or ABENDs).
User response
Problem determination
See the System Programmer Response.
Source
z/OS® Communications
Server SNA
Module
Routing code
Descriptor code
Example
IST2191I HPR PATH SWITCH SUMMARY FROM 03/21/06 AT 09:45:14
IST924I -------------------------------------------------------------
IST2192I STARTED = 20
IST2193I TGINOP = 20 SRQTIMER = 0 PSRETRY = 0
IST2194I PARTNER = 0 MNPS = 0 UNAVAILABLE = 0
IST2336I STALLED = 0
IST2195I NETWORK = 5 HIGH = 5 MEDIUM = 5 LOW = 5
IST924I -------------------------------------------------------------
IST2196I COMPLETED = 20
IST2195I NETWORK = 5 HIGH = 5 MEDIUM = 5 LOW = 5
IST924I -------------------------------------------------------------
IST2197I FAILED = 0
IST2195I NETWORK = 0 HIGH = 0 MEDIUM = 0 LOW = 0
IST924I -------------------------------------------------------------
IST2198I NETID STARTED COMPLETED FAILED
IST2199I CPNAME NET HI MED LOW NET HI MED LOW NET HI MED LOW
IST2205I --------- --------------- --------------- ---------------
IST2200I NETA 5 5 5 5 5 5 5 5 0 0 0 0
IST2201I SSCP7A 1 1 1 1 1 1 1 1 0 0 0 0
IST2201I SSCP3A 1 1 1 1 1 1 1 1 0 0 0 0
IST2201I SSCP7B 1 1 1 1 1 1 1 1 0 0 0 0
IST2201I SSCP2AB 1 1 1 1 1 1 1 1 0 0 0 0
IST2201I SSCP99 1 1 1 1 1 1 1 1 0 0 0 0
IST924I -------------------------------------------------------------
IST2206I 40 PATH SWITCH EVENTS FOR 5 CPS IN 1 NETIDS
IST314I END