System Level Troubleshooting of SGSN

Kaushik
Kaushik  Diamond  (1)
7 years 10 months ago  View: 1746  Reply: 3
1F

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;)
%%DSP MODULE: MN=526;%%
RETCODE = 0 Operation succeeded
The result is as follows
-----------------------
Subracknumber Slot number Rack number Position number Location ME ID Module number Module type Active/Standby state Availability state
X XX 0 y FRONT y 526 LIP StandbyNormal
X XX 0 y FRONT y 526 LIP Active Normal

GTPC/GTPU Tunnel path broken
?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.

 

 

pronoy
pronoy  Gold 
7 years 10 months ago
2F
Helpful information.
Armetta
Armetta  Diamond 
7 years 10 months ago
3F
Excellent resolution of the problem and Useful commands

shamsul.arefin
shamsul.arefin  Silver 
7 years 10 months ago
4F
Useful command.