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List of Timer numbers » History » Revision 8

Revision 7 (neels, 09/16/2020 12:29 AM) → Revision 8/35 (neels, 09/16/2020 12:29 AM)

h1. List of Timer numbers 

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 Below is a list of timer numbers used in Osmocom programs. 
 Many are specified by 3GPP specifications, indicated by a T (like T3103). 
 There are also various Osmocom specific timers, indicated by an X (like X23). 

 There are also numerous timer configurations in Osmocom predating introduction of T and X timers, not listed here. 

 h2. Timers specified by 3GPP 

 |_.configurable|_.Timer|_.Program|_.Purpose| 
 | yes | net T7 | [[OsmoBSC:]] | inter-BSC/MSC Handover outgoing, BSSMAP HO Required to HO Command timeout | 
 | yes | net T8 | [[OsmoBSC:]] | inter-BSC/MSC Handover outgoing, BSSMAP HO Command to final Clear timeout | 
 | yes | net T10 | [[OsmoBSC:]] | RR Assignment | 
 | yes | net T101 | [[OsmoBSC:]] | inter-BSC/MSC Handover incoming, BSSMAP HO Request to HO Accept | 
 | yes | net T3101 | [[OsmoBSC:]] | RR Immediate Assignment | 
 | yes | net T3103 | [[OsmoBSC:]] | Handover | 
 | yes | net T3105 | [[OsmoBSC:]] | Physical Information | 
 | yes | net T3107 | [[OsmoBSC:]] | (unused) | 
 | yes | net T3109 | [[OsmoBSC:]] | RSL SACCH deactivation | 
 | yes | net T3111 | [[OsmoBSC:]] | Wait time before RSL RF Channel Release | 
 | yes | net T3113 | [[OsmoBSC:]] | Paging | 
 | yes | net T3115 | [[OsmoBSC:]] | (unused) | 
 | yes | net T3117 | [[OsmoBSC:]] | (unused) | 
 | yes | net T3119 | [[OsmoBSC:]] | (unused) | 
 | yes | net T3122 | [[OsmoBSC:]] | Wait time after RR Immediate Assignment Reject | 
 | yes | net T3141 | [[OsmoBSC:]] | (unused) | 
 | yes | net T3212 | [[OsmoBSC:]] | Periodic Location Update timer, sent to MS (1 = 6 minutes) | 
 | yes | vlr T3212 | [[OsmoMSC:]] | Subscriber expiration timeout | 
 | yes | vlr T3250 | [[OsmoMSC:]] | TMSI Reallocation procedure | 
 | yes | vlr T3260 | [[OsmoMSC:]] | Authentication procedure | 
 | yes | vlr T3270 | [[OsmoMSC:]] | Identification procedure | 
 | yes | T3312 | [[OsmoSGSN:]] | Periodic RA Update timer (s) | 
 | yes | T3313 | [[OsmoSGSN:]] | Waiting for paging response timer (s) | 
 | yes | T3314 | [[OsmoSGSN:]] | READY timer. Force to STANDBY on expiry timer (s) | 
 | yes | T3316 | [[OsmoSGSN:]] | AA-Ready timer (s) | 
 | yes | T3322 | [[OsmoSGSN:]] | Detach request -> accept timer (s) | 
 | yes | T3350 | [[OsmoSGSN:]] | Waiting for ATT/RAU/TMSI_COMPL timer (s) | 
 | yes | T3360 | [[OsmoSGSN:]] | Waiting for AUTH/CIPH response timer (s) | 
 | yes | T3370 | [[OsmoSGSN:]] | Waiting for IDENTITY response timer (s) | 
 | yes | T3385 | [[OsmoSGSN:]] | Wait for ACT PDP CTX REQ timer (s) | 
 | yes | T3386 | [[OsmoSGSN:]] | Wait for MODIFY PDP CTX ACK timer (s) | 
 | yes | T3395 | [[OsmoSGSN:]] | Wait for DEACT PDP CTX ACK timer (s) | 
 | yes | T3397 | [[OsmoSGSN:]] | Wait for DEACT AA PDP CTX ACK timer (s) | 

 h2. Timers specific to Osmocom 

 |_.configurable|_.Timer|_.Program|_.Purpose| 
 | yes | X1 | [[OsmoBTS:]] | Time after which osmo-bts exits if regular ramp down during shut down process does not finish (s) | 
 | yes | X2 | [[OsmoBTS:]] | Time after which osmo-bts exits if requesting transceivers to stop during shut down process does not finish (s)| 
 | yes | geran X1 | [[OsmoMSC:]] | RAN connection Complete Layer 3, Authentication and Ciphering timeout | 
 | yes | geran X2 | [[OsmoMSC:]] | RAN connection release sanity timeout | 
 | yes | geran X3 | [[OsmoMSC:]] | Timeout to find a target BSS after Handover Required | 
 | yes | utran X1 | [[OsmoMSC:]] | RAN connection Complete Layer 3, Authentication and Ciphering timeout | 
 | yes | utran X2 | [[OsmoMSC:]] | RAN connection release sanity timeout | 
 | yes | utran X3 | [[OsmoMSC:]] | Timeout to find a target BSS after Handover Required | 
 | yes | sgs X1 | [[OsmoMSC:]] | RAN connection Complete Layer 3, Authentication and Ciphering timeout | 
 | yes | sgs X2 | [[OsmoMSC:]] | RAN connection release sanity timeout | 
 | yes | sgs X3 | [[OsmoMSC:]] | Timeout to find a target BSS after Handover Required | 
 | yes | mgw X2 | [[OsmoMSC:]] | RTP stream establishing timeout | 
 | yes | net X4 | [[OsmoBSC:]] [[OsmoMSC:]] | After Clear Request, wait for MSC to Clear Command (sanity) | 
 | yes | net X5 | [[OsmoBSC:]] | Timeout to switch dynamic timeslot PCHAN modes | 
 | yes | net X6 | [[OsmoBSC:]] | Timeout for RSL Channel Activate ACK after sending RSL Channel Activate | 
 | yes | net X7 | [[OsmoBSC:]] | Timeout for RSL IPA CRCX ACK after sending RSL IPA CRCX | 
 | yes | net X8 | [[OsmoBSC:]] | Timeout for RSL IPA MDCX ACK after sending RSL IPA MDCX | 
 | yes | net X9 | [[OsmoBSC:]] | Timeout for availability of MGW endpoint | 
 | yes | net X10 | [[OsmoBSC:]] [[OsmoMSC:]] | Timeout for fully configured MGW endpoint | 
 | yes | X1001 | [[OsmoSGSN:]] | RANAP Release timeout. Wait for RANAP Release Complete. On expiry release Iu connection (s) | 
 | yes | mgw X2427 | from [[OsmoMGW:|libosmo-mgcp-client]]: [[OsmoBSC:]] [[OsmoMSC:]] | timeout for MGCP response from MGW | 
 | yes | net X3111 | [[OsmoBSC:]] | Wait time after lchan was released in error (should be T3111 + 2s) | 
 | yes | net X3210 | [[OsmoBSC:]] | After L3 Complete, wait for MSC to confirm | 
 | yes | X3314 | [[OsmoSGSN:]] | Iu User inactivity timer. On expiry release Iu connection (s) | 
 | yes | X4222 | [[OsmoHLR:]] | GSUP Update Location timeout | 

 | yes | X3111 | [[OsmoMSC:]] | Wait time after lchan was released in error (should be T3111 + 2s) | 
 | yes | X3210 | [[OsmoMSC:]] | After L3 Complete, wait for MSC to confirm | 
 | yes | X2427 | [[OsmoMSC:]] | timeout for MGCP response from MGW | 


 h3. Legacy timer numbers: specific to Osmocom, but were once defined as T timers 

 |_.configurable |_.Legacy T timer|_.corresponding X timer|_.Software|_.Purpose| 
 | yes | T999 | net X4 | [[OsmoBSC:]] | After Clear Request, wait for MSC to Clear Command (sanity) | 
 | no | T2427001 | mgw X2427 | [[OsmoMGW:|libosmo-mgcp-client]] [[OsmoBSC:]] [[OsmoMSC:]] | timeout for MGCP response from MGW | 
 | yes | T993111 | net X3111 | [[OsmoBSC:]] | Wait time after lchan was released in error (should be T3111 + 2s) | 
 | yes | T993210 | net X3210 | [[OsmoBSC:]] | After L3 Complete, wait for MSC to confirm | 

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