T200 Expiries Counters

[khurrambilal01]

Hi experts,
How can we check T200 timer expiries in NSN 2G through some counters?

Thanks for sharing knowledge!

[abc123ww]

Hi experts,
How can we check T200 timer expiries in NSN 2G through some counters?

Thanks for sharing knowledge!

Dear experts,
I also have the same quetion, please explain very very detail. Big thanks.

[plannerguy]

Hi

pls check drop call status report 160 , or ND 204 .In that u will get cosponsoring counter.

Regards
Plannerguy

[khurrambilal01]

Hi Plannerguy,
None of these reports have direct correlation with T200 Expiries,
Both the reports show how much percentage of SDCCH Call faliures are on ABIS, A & Air interface. But there is no separate counter for T200 because ABIS failures include so many other things in addition to T200!

So, is there any other counter to check T200 expiries?

[plannerguy]

Hi

Pls check with counter 20476 or 20065. it will tell the number of L1 errors and the number of T200 timeouts.

Else Use MML command ZDWN will specifically tell whole data.

SABME FRAMES
DISC FRAMES
UA FRAMES
DM FRAMES
FRMR FRAMES
XID FRAMES
RR FRAMES
RNR FRAMES
REJ FRAMES
I FRAMES
UI FRAMES
I FRAME OCTETS
UI FRAME OCTETS
TOTAL OCTET COUNT
Q 921 ERROR COUNTERS
A RECEIPT OF UNSOLICITED RR/RNR/REJ F=1
B RECEIPT OF UNSOLICITED DM F=1
C RECEIPT OF UNSOLICITED UA F=1
D RECEIPT OF UNSOLICITED UA F=0
E RECEIPT OF UNSOLICITED DM F=0
F PEER INITIATED RE-ESTABLISHMENT
G UNSUCCESSFULL RETRANSMISSION OF SABME
H UNSUCCESSFULL RETRANSMISSION OF DISC
I UNSUCCESSFULL RETRANSMISSION RR/RNR/REJ 0000000000
J N(R) ERROR
K RECEIPT OF FRMR RESPONSE
L RECEIPT OF NON-IMPLEMENTED FRAME
M RECEIPT OF I FIELD NOT PERMITTED
N RECEIPT OF FRAME WITH WRONG SIZE
O N201 ERROR
MISCELLANEOUS STATISTICAL COUNTERS:
DL-DATA-REQUESTS
DL-UNIT-DATA-REQUESTS
DL-DATA-INDICATIONS
DL-UNIT-DATA-INDICATIONS
CRC ERRORS
DELETED DL-DATA-REQUESTS
DELETED I-FRAMES IN WINDOW
T200 EXPIRIES
FRAMING ERRORS
L2-L3 CONGESTION

Regards
Plannerguy

[spaceo]

Hi

Pls check with counter 20476 or 20065. it will tell the number of L1 errors and the number of T200 timeouts.

Else Use MML command ZDWN will specifically tell whole data.

SABME FRAMES
DISC FRAMES
UA FRAMES
DM FRAMES
FRMR FRAMES
XID FRAMES
RR FRAMES
RNR FRAMES
REJ FRAMES
I FRAMES
UI FRAMES
I FRAME OCTETS
UI FRAME OCTETS
TOTAL OCTET COUNT
Q 921 ERROR COUNTERS
A RECEIPT OF UNSOLICITED RR/RNR/REJ F=1
B RECEIPT OF UNSOLICITED DM F=1
C RECEIPT OF UNSOLICITED UA F=1
D RECEIPT OF UNSOLICITED UA F=0
E RECEIPT OF UNSOLICITED DM F=0
F PEER INITIATED RE-ESTABLISHMENT
G UNSUCCESSFULL RETRANSMISSION OF SABME
H UNSUCCESSFULL RETRANSMISSION OF DISC
I UNSUCCESSFULL RETRANSMISSION RR/RNR/REJ 0000000000
J N(R) ERROR
K RECEIPT OF FRMR RESPONSE
L RECEIPT OF NON-IMPLEMENTED FRAME
M RECEIPT OF I FIELD NOT PERMITTED
N RECEIPT OF FRAME WITH WRONG SIZE
O N201 ERROR
MISCELLANEOUS STATISTICAL COUNTERS:
DL-DATA-REQUESTS
DL-UNIT-DATA-REQUESTS
DL-DATA-INDICATIONS
DL-UNIT-DATA-INDICATIONS
CRC ERRORS
DELETED DL-DATA-REQUESTS
DELETED I-FRAMES IN WINDOW
T200 EXPIRIES
FRAMING ERRORS
L2-L3 CONGESTION

Regards
Plannerguy

It is very useful for me,thks.

[clex_]

Have you tried Counter ID: 001013 (NetAct name: TCH_RADIO_FAIL)?

[khurrambilal01]

Have you tried Counter ID: 001013 (NetAct name: TCH_RADIO_FAIL)?

@ Clex;
Comeon my friend, We are talkig about T200 SDCCH expiries not TCH drops

[clex_]

@ Clex;
Comeon my friend, We are talkig about T200 SDCCH expiries not TCH drops

According to the counter description for 001013, T200 is included:

When a TCH transaction ends because of a radio failure and the RRM releases the TCH. This counter is typical in connection with coverage problems. ERROR INDICATION is sent by the BTS to the BSC in the following cases:
- Sequence error in a received message (the case where retransmission is not possible).
- Timer T200 has expired N200 +1 times (MS does not respond any more).
- Unsolicited DM response when link is established.

Please add to reputation

[khurrambilal01]

According to the counter description for 001013, T200 is included:

When a TCH transaction ends because of a radio failure and the RRM releases the TCH. This counter is typical in connection with coverage problems. ERROR INDICATION is sent by the BTS to the BSC in the following cases:
- Sequence error in a received message (the case where retransmission is not possible).
- Timer T200 has expired N200 +1 times (MS does not respond any more).
- Unsolicited DM response when link is established.

Please add to reputation

This T200 expiry in counter TCH radio Fail is related to T200 FACCH drop not T200 SDCCH drop.