1. Database Administration - IP7 User's Guide
  2. IPSG M2PA and M3UA Configuration Procedures
  3. Removing an IPSG Linkset

Removing an IPSG Linkset

This procedure is used to remove a IPSG linkset from the database using the dlt-ls command. An IPSG linkset is a linkset whose ipsg parameter value is yes.

The dlt-ls command has only one parameter, lsn, which is the name of the linkset to be removed from the database.

The linkset to be removed must exist in the database.

To remove a linkset, all links associated with the linkset must be removed.

The linkset to be removed cannot be referenced by a routeset.

If the Flexible Linkset Optional Based Routing feature is enabled and turned on, and the linkset is referenced by a GTT selector, the linkset cannot be removed.

A proxy linkset whose APC is assigned to more than one proxy linkset cannot be removed if the linkset contains the proxy point code (shown in the PPCA/PPCI/PPCN/PPCN24 field in the rtrv-ls:apc/apca/apci/apcn/apcn24=<APC of the linkset> output) that is also assigned to the APC of the linkset. The proxy point code assigned to the APC of the linkset is shown in the rtrv-dstn:dpc/dpca/dpci/dpcn/dpcn24=<APC of the linkset> output. The linksets that do not contain the proxy point code that is assigned to the APC of the linkset must be removed before the linkset containing proxy point code that is assigned to the APC of the linkset can be removed.

Canceling the RTRV-LS Command

Because the rtrv-ls command used in this procedure can output information for a long period of time, the rtrv-ls command can be canceled and the output to the terminal stopped. There are three ways that the rtrv-ls command can be canceled.

  • Press the F9 function key on the keyboard at the terminal where the rtrv-ls command was entered.
  • Enter the canc-cmd without the trm parameter at the terminal where the rtrv-ls command was entered.
  • Enter the canc-cmd:trm=<xx>, where <xx> is the terminal where the rtrv-ls command was entered, from another terminal other that the terminal where the rtrv-ls command was entered. To enter the canc-cmd:trm=<xx> command, the terminal must allow Security Administration commands to be entered from it and the user must be allowed to enter Security Administration commands. The terminal’s permissions can be verified with the rtrv-secu-trm command. The user’s permissions can be verified with the rtrv-user or rtrv-secu-user commands.

For more information about the canc-cmd command, go to Commands User's Guide.

  1. Display the IPSG linksets by entering the rept-stat-iptps command. This is an example of the possible output. 
    
rlghncxa03w 10-07-19 21:16:37 GMT EAGLE5 42.0.0
IP TPS USAGE REPORT

           THRESH  CONFIG/  CONFIG/         TPS   PEAK      PEAKTIMESTAMP
                      RSVD      MAX
-------------------------------------------------------------------------
LSN
is1          100%     500     2000  TX:    427    550  10-07-19 09:49:19 
                                   RCV:    312    450  10-07-19 09:49:19   
-------------------------------------------------------------------------

Command Completed.
  2. Display the linkset that will be removed by entering the rtrv-ls command with the name of the linkset shown in 1. This is an example of the possible output.

    rtrv-ls:lsn=ls1

    This is an example of the possible output. 

    tekelecstp 18-01-22 05:31:51 EST  EAGLE 46.6.0.0.0-71.21.0

                                     L3T SLT              GWS GWS GWS
    LSN          APCA   (SS7)  SCRN  SET SET BEI LST LNKS ACT MES DIS SLSCI NIS
    ls1          003-003-003   gws1  1   1   no  A   15   on  on  on  yes   off

                  SPCA          CLLI         TFATCABMLQ MTPRSE ASL8
               ---------------- -----------  7          no     no 

               RANDSLS
               off

               IPSG  GTTMODE           CGGTMOD
               no    CdPA               no
   
                                      LP         ATM
               LOC  LINK SLC TYPE     SET BPS    TSEL     VCI   VPI  LL
               1102 A    2   LIMATM   1   1.544M EXTERNAL 5     0    0

               LOC  LINK SLC TYPE     IPLIML2
               1201 A    5   IPLIM    M2PA
               
                                      L2T               PCR  PCR   E1   E1
               LOC  LINK SLC TYPE     SET  BPS    ECM   N1   N2    LOC  PORT TS
               1205 A    6   LIME1    1    56000  BASIC ---  ----- 1205 1    1

                                      L2T               PCR  PCR   T1   T1
               LOC  LINK SLC TYPE     SET  BPS    ECM   N1   N2    LOC  PORT TS
               1206 A    10  LIMT1    1    56000  BASIC ---  ----- 1206 1    1

    Link set table is (7 of 1024) 1% full.

    If the IPSG value of the linkset is no, perform the "Removing a Linkset Containing SS7 Signaling Links" procedure to remove the linkset.

    If the IPSG value of the linkset is yes, perform one of these actions.
    • If the linkset being removed is a proxy linkset (LST=PRX), and more than one linkset is shown in the rtrv-ls output that contains the APC of the linkset being removed, continue the procedure with 3.
    • If the linkset being removed is not a proxy linkset, or is a proxy linkset whose APC is not used by more than one linkset, continue the procedure with 5.
  3. Display the linksets that contain the APC of the linkset being removed by entering the rtrv-ls command with the APC of the linkset. For this example, enter this command.

    rtrv-ls:apca=150-001-002

    This is an example of the possible output. 

    rlghncxa03w 07-08-23 11:09:57 EST  37.0.0

APCA   =    150-001-002

                                 L3T SLT              GWS GWS GWS
LSN           PPCA          SCRN SET SET BEI LST LNKS ACT MES DIS SLSCI NIS
lsn150        150-001-001   none 1   1   no  PRX 1    off off off no    off
lsn151        150-001-004   none 1   1   no  PRX 1    off off off no    off


Link set table is (14 of 1024) 1% full.
  4. Display the attributes of the APC of the linkset being removed by entering the rtrv-dstn command with the APC of the linkset. For this example, enter this command.

    rtrv-dstn:dpca=150-001-002

    This is an example of the possible output. 

    
rlghncxa03w 10-12-15 09:22:39 GMT EAGLE5 43.0.0

   DPCA          CLLI        BEI ELEI   ALIASI           ALIASN/N24    DMN
   150-001-002   ----------- no  --- --------------   --------------   SS7

   PPCA         NCAI PRX     RCAUSE NPRST SPLITIAM HMSMSC HMSCP SCCPMSGCNV
   150-001-001  ---- no      50     on    20       no     no    none

Destination table is (14 of 2000) 1% full
Alias table is (0 of 12000) 0% full
PPC table is (2 of 10) 20% full

    A proxy linkset whose APC is assigned to more than one proxy linkset cannot be removed if the linkset contains the proxy point code (shown in the PPCA/PPCI/PPCN/PPCN24 field in 3) that is also assigned to the APC of the linkset (shown in 4 ). The linksets that do not contain the proxy point code that is assigned to the APC of the linkset must be removed before the linkset containing proxy point code that is assigned to the APC of the linkset can be removed.

  5. Display the routes in the database by using the rtrv-rte command, specifying the name of the linkset you wish to remove. For this example, enter this command.

    rtrv-rte:lsn=ls1

    This is an example of the possible output. 

    
rlghncxa03w 07-05-10 11:43:04 GMT EAGLE5 37.0.0
LSN           DPC           
RC
ls1           240-012-004   10

    If any routes reference the linkset to be removed, remove these routes by performing the "Removing a Route" procedure in the Database Administration - SS7 User's Guide.

  6. Remove all links in the linkset by performing one of these procedures.

    If the ADAPTER value of the linkset is M2PA, shown in the rtrv-ls output in 2, perform the Removing an IPSG M2PA Signaling Link procedure.

    If the ADAPTER value of the linkset is M3UA, shown in the rtrv-ls output in 2, perform the Removing an IPSG M3UA Signaling Link procedure.

  7. Display any entires in the route exception table whose linkset name is the name of the linkset being removed in this procedure. Enter the rtrv-rtx command with the lsn parameter. For this example, enter this command.

    rtrv-rtx:lsn=ls1

    This is an example of the possible output. 

    
rlghncxa03w 07-05-10 11:43:04 GMT EAGLE5 37.0.0

    DPCA          RTX-CRITERIA              LSN        RC    APC

    240-012-006   OPCA
                  008-008-008               ls1        40    240-012-004

    DESTINATION ENTRIES ALLOCATED:   2000
        FULL DPC(s):                   15
        EXCEPTION DPC(s):               5
        NETWORK DPC(s):                 0
        CLUSTER DPC(s):                 1
        TOTAL DPC(s):                  21
        CAPACITY (% FULL):              1%
    ALIASES ALLOCATED:               12000
        ALIASES USED:                   0
        CAPACITY (% FULL):              0%
    X-LIST ENTRIES ALLOCATED:         500

    If the linkset being removed in this procedure is not assigned to a route exception table entry, no entries are displayed in the rtrv-rtx output, but a summary of the point code quanties is displayed.

    If the name of the linkset being removed in this procedure shown in the LSN column in this step, perform one of these procedures:

    1. Change the name of the linkset in the entries displayed in this step by performing the "Changing a Route Exception Entry" procedure in the Database Administration - SS7 User's Guide.
    2. Remove all the entries displayed in this step by performing the "Removing a Route Exception Entry" procedure in the Database Administration - SS7 User's Guide.
  8. Verify whether or not the Flexible Linkset Optional Based Routing feature is enabled and turned on by entering this command.

    rtrv-ctrl-feat:partnum=893027701

    This is an example of the possible output. 

    
rlghncxa03w 09-05-10 11:43:04 GMT EAGLE5 41.0.0
The following features have been permanently enabled:

Feature Name              Partnum   Status Quantity
Flex Lset Optnl Based Rtg 893027701 on     ----


The following features have been temporarily enabled:

Feature Name              Partnum   Status Quantity   Trial Period Left
Zero entries found.


The following features have expired temporary keys:

Feature Name              Partnum
Zero entries found.

    If the Flexible Linkset Optional Based Routing feature is enabled and turned on, continue the procedure with 9.

    If the Flexible Linkset Optional Based Routing feature is not enabled or not turned on, continue the procedure with 10.

  9. Display the GTT selectors that contain the linkset that is being removed by entering the rtrv-gttsel command with the name of the linkset. For this example, enter this command.

    rtrv-gttsel:lsn=ls1

    This is an example of the possible output. 

    
rlghncxa03w 09-05-10 11:43:04 GMT EAGLE5 41.0.0


GTI                   CG                   CDPA             CGPA
ANSI TT  NP      NAI  SSN SELID LSN        GTTSET           GTTSET
2    180 --      ---  any none  ls1        -----    (---  ) cdgta4   (cdgta)

GTI                   CG                   CDPA             CGPA
INTL TT  NP      NAI  SSN SELID LSN        GTTSET           GTTSET



GTI                   CG                   CDPA             CGPA
NATL TT  NP      NAI  SSN SELID LSN        GTTSET           GTTSET


GTI                   CG                   CDPA             CGPA
N24  TT  NP      NAI  SSN SELID LSN        GTTSET           GTTSET

    If GTT selectors are shown in the rtrv-gttsel output, perform the "Removing a GTT Selector" procedure in the Database Administration - GTT User's Guide to remove all entries shown in this step. After the GTT selectors have been removed, continue the procedure with 10.

    If GTT selectors are not shown in the rtrv-gttsel output, continue the procedure with 10.

  10. Remove the linkset using the dlt-ls command. For this example, enter this command.

    dlt-ls:lsn=ls1

    When this command has successfully completed, this message should appear. 

    
rlghncxa03w 07-05-17 16:03:12 GMT  EAGLE5 37.0.0
Link set table is ( 23 of 1024)  2% full
DLT-LS: MASP A - COMPLTD
  11. Verify the changes using the rtrv-ls command with the linkset name used in 10.

    For this example, enter this command.

    rtrv-ls:lsn=ls1

    If the removal of the linkset was successful, the following message is displayed. 

    
E2346 Cmd Rej: Linkset not defined

    Continue the procedure with 12 if the linkset that was removed in 10 has any of these attributes:

    • The linkset was not a proxy linkset.
    • The linkset was a proxy linkset whose APC was assigned to only the proxy linkset that was removed in 10.
    • The linkset was a proxy linkset and:
      • The APC of this linkset is assigned to more than one linkset.
      • The linkset did not contain the proxy point code that was assigned to the APC of the linkset.
      • The linkset that contains the proxy point code that is assigned to the APC of the linkset will not be removed from the database.

    If you wish to remove the proxy linkset that contains the proxy point code that is also assigned to the APC of the linkset, and the database contains other linksets that are assigned to this APC, these other linksets must be removed before the proxy linkset that contains the proxy point code that is also assigned to the APC of the linkset can be removed. Repeat this procedure from 4 to remove these linksets. After these linksets have been removed, perform this procedure again from 4 to remove the proxy linkset that contains the proxy point code that is also assigned to the APC of the linkset.

  12. Back up the new changes using the chg-db:action=backup:dest=fixed command. These messages should appear, the active Maintenance and Administration Subsystem Processor (MASP) appears first. 
    
BACKUP (FIXED) : MASP A - Backup starts on active MASP.
BACKUP (FIXED) : MASP A - Backup on active MASP to fixed disk complete.
BACKUP (FIXED) : MASP A - Backup starts on standby MASP.
BACKUP (FIXED) : MASP A - Backup on standby MASP to fixed disk complete.

Figure 6-15 Removing an IPSG Linkset



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