System Level Troubleshooting of SGSN
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Free Storage Space Insufficien Get relevant subrack,slotand Logical storage name. Check storage occupancy rate by using DSP SYSRES: RESTYPE=BOARD, SRN=0, SN=X, BDRID=DISK; Find out logical storage name from "Mounted On" Column and check relevant Free space and occupancy rate
How to check board(DSP BRD // Better provide subrackand slot number with this command to understand board current status)
%%DSP BRD: SRN=0, SN=1;%%
RETCODE = 0 Operation succeeded The result is as follows ---------------- Subracknumber = x Slot number = x Rack number = x Position number = x Location = Front ME type = SGSN-USN Board physical type = UPBA3 Application type = ECU Reinstall flag = NULL Availability state = Normal Administrative state = Unlock
Total memory (MB) = xxxx
Available memory (MB) = xxxx
(Number of results = 1) How to check module (DSP MODULE: MN=xxx;) ?Explanation: After creating one PDP session SGSN and sometime GGSN send keep alive message to peer GSN node though GTP tunnel for a certain period of time, in case of our SGSN doesn’t response from peer GGSN SGSN generate GTPC/GTPU tunnel alarm. ?Normally we are getting lots of alarm as SGSN has lots of tunnel with roaming GGSN and due to lots of dependency (such as GRX and RP) and distance sometime SGSN doesn’t get response. ?It is also possible to get that kind of alarm for local GGSN case (if GGSN is down). So we have to check peer IP.
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