1.Explain me about this timer?
2.Reason of T200 expire?
3.what will happen after expire in network? - Call Drop increases
4.How we can solve the problem? - Change HO Margin
Some time T200 will be expire.Somebody please answer the questions:
1.Explain me about this timer?
2.Reason of T200 expire?
3.what will happen after expire in network?
4.How we can solve the problem?
Regards//
This attribute contains values for the LapDm Timer 200, to be used on the different
control channels.
Default values:
sdcchSAPI0 220ms
facchTCHF 155ms
facchTCHH 205ms
sacchTCHSAPI0 900ms
sacchSDCCH 900ms
sdcchSAPI3 450ms
sacchTCHSAPI3 1350ms
- T200 is expired N200+1 times before a i-frame is received ==> when expire we have link down ( L2 error )
The Timer T200 a Maximum time the LAPDm (Layer-2) transmitter will wait for an acknowledgment before making a retransmission.
So the cause is obvious as it is says there is a protocol error or the reason for a release on the radio link layer(LAPDm).
I also have to say that we have T200 on LAPD Interface and the definition is the same.
The Timer T200 a Maximum time the LAPDm (Layer-2) transmitter will wait for an acknowledgment before making a retransmission.
So the cause is obvious as it is says there is a protocol error or the reason for a release on the radio link layer(LAPDm).
I also have to say that we have T200 on LAPD Interface and the definition is the same.
The Timer T200 a Maximum time the LAPDm (Layer-2) transmitter will wait for an acknowledgment before making a retransmission.
So the cause is obvious as it is says there is a protocol error or the reason for a release on the radio link layer(LAPDm).
I also have to say that we have T200 on LAPD Interface and the definition is the same.
hi
thank you good report
do you have the same about synchronization because i face a problem of Ho and
i suspect a bad synchronisation between bscs that cause fail on intercell ho.
hi
thank you good report
do you have the same about synchronization because i face a problem of Ho and
i suspect a bad synchronisation between bscs that cause fail on intercell ho.
Br Hassen
Hi
Did you check BTS clock may be the problem is there not transmission
BR
RF
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