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List of Timer numbers » History » Version 2

neels, 09/15/2020 03:59 PM

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h1. List of Timer numbers
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Below is a list of timer numbers used in Osmocom programs.
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Many are specified by 3GPP specifications, indicated by a T (like T3103).
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There are also various Osmocom specific timers, indicated by an X (like X23). 
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h2. Timers specified by 3GPP
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|_.Timer|_.Program|_.Purpose|
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| T7 | [[OsmoBSC:]] | inter-BSC/MSC Handover outgoing, BSSMAP HO Required to HO Command timeout |
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| T8 | [[OsmoBSC:]] | inter-BSC/MSC Handover outgoing, BSSMAP HO Command to final Clear timeout |
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| T10 | [[OsmoBSC:]] | RR Assignment |
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| T101 | [[OsmoBSC:]] | inter-BSC/MSC Handover incoming, BSSMAP HO Request to HO Accept |
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| T3101 | [[OsmoBSC:]] | RR Immediate Assignment |
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| T3103 | [[OsmoBSC:]] | Handover |
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| T3105 | [[OsmoBSC:]] | Physical Information |
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| T3107 | [[OsmoBSC:]] | (unused) |
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| T3109 | [[OsmoBSC:]] | RSL SACCH deactivation |
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| T3111 | [[OsmoBSC:]] | Wait time before RSL RF Channel Release |
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| T3113 | [[OsmoBSC:]] | Paging |
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| T3115 | [[OsmoBSC:]] | (unused) |
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| T3117 | [[OsmoBSC:]] | (unused) |
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| T3119 | [[OsmoBSC:]] | (unused) |
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| T3122 | [[OsmoBSC:]] | Wait time after RR Immediate Assignment Reject |
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| T3141 | [[OsmoBSC:]] | (unused) |
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| T3212 | [[OsmoBSC:]] | Periodic Location Update timer, sent to MS (1 = 6 minutes) |
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h2. Timers specific to Osmocom
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|_.Timer|_.Program|_.Purpose|
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| X1 | [[OsmoBTS:]] | Time after which osmo-bts exits if regular ramp down during shut down process does not finish (s) |
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| X1 | [[OsmoBSC:]] | MGCP response timeout |
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| X2 | [[OsmoBTS:]] | Time after which osmo-bts exits if requesting transceivers to stop during shut down process does not finish (s)|
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| X2 | [[OsmoBSC:]] | RTP stream establishing timeout |
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| X23002 | [[OsmoBSC:]] | Wait time for RSL Channel Activate ACK after sending RSL Channel Activate |
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| X23005 | [[OsmoBSC:]] | Wait time for RSL IPA CRCX ACK after sending RSL IPA CRCX |
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| X23006 | [[OsmoBSC:]] | Wait time for RSL IPA MDCX ACK after sending RSL IPA MDCX |
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h3. Legacy timer numbers: specific to Osmocom, but still defined as T timers
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|_.Legacy T timer|_.corresponding X timer|_.Software|_.Purpose|
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| T2427001 | - | [[OsmoMGW:|libosmo-mgcp-client]] [[OsmoBSC:]] [[OsmoMSC:]] | timeout for MGCP response from MGW |
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| T992427 | - | [[OsmoBSC:]] | MGCP timeout (2427 is the default MGCP port number) |
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| T993111 | - | [[OsmoBSC:]] | Wait time after lchan was released in error (should be T3111 + 2s) |
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| T993210 | - | [[OsmoBSC:]] | After L3 Complete, wait for MSC to confirm |
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| T999 | - | [[OsmoBSC:]] | After Clear Request, wait for MSC to Clear Command (sanity) |
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