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6 Message Reference
• ip_evt_mask
The input event trace mask. This is a 16-bit value with bits set to 1 to cause a trace message to be sent
to the management module whenever a message is received by Q.SAAL. Care should be taken when
tracing messages, as system throughput may be reduced. The fields in the trace mask cause the events
indicated in the table below to be traced.
• mgmt_evt_mask
The management event trace mask. This is a 16-bit value with bits set to 1 to cause an event indication
message to be sent to the management module for the events shown. The fields in the trace mask cause
the events indicated in Figure 4 to be traced. By default, the SL_FAIL, SL_CONG, ERROR and STATE bits
are set.Note: Take care when sending trace mask set requests. Failure to set bits 0, 1 2 and 3 prevents
the generation of MGT_MSG_SS7_STATE state change indications and MGT_MSG_SS7_EVENT Q.791
event indications.
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
0 0 FLUSH
LPO
CLRD
LPO
RTVL
REQ
RTV
BSNT
EMGCY
CLRD
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
EMGCY 0 STOP START 0 0 0
MSG
FOR TX
Key:
o FLUSH - Continue request and Flush
request
o LPO CLRD - Local processor outage
ceases indication
o LPO - Local processor outage indication
and MTP failure request
o RTVL_REQ - Retrieval request
o RTV_BSNT - Retrieve BSNT request
o EMGCY_CLRD - Emergency cleared
indication
o EMGCY - Emergency indication
o STOP - Stop request
o START - Start request
o MSG_FOR_TX - Message for
transmission request
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
00000000
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 SL_PROV SL_TEXTP SL CONG SL FAIL ERROR STATE
Key:
o SL_PROV - Proving errors
o SL_TEXTP - Timer expired
o SL_CONG - Report Q.791 congestion events
o SL_FAIL - Report Q.791 reasons for link failure
o ERROR - Report errors
o STATE - Trace changes of link state