Project

General

Profile

OsmoNITB Migration Guide » History » Version 10

« Previous - Version 10/23 (diff) - Next » - Current version
neels, 10/28/2017 11:26 PM


OsmoNITB Migration Guide

Historically, Osmocom offered the OsmoNITB "Network-In-The-Box" as an actual single program. It was a useful simplification at the time, but in 2017, Osmocom have decided to split OsmoNITB into programs more closely resembling traditional network architecture. It is recommended to use the new separate components instead of the OsmoNITB, since active development focus has moved there.

Creating a new Network In The Box from scratch is described at Osmocom Network In The Box, please refer to that page to complement the descriptions found here.

This page aims at describing the steps necessary to move from a working operation of osmo-nitb to the new split components.

Subscriber Database

With OsmoHLR comes osmo-hlr-db-tool, which is capable of importing the most important subscriber data from a database that was used with OsmoNITB.

In a standard installation, the osmo-nitb database should be found at /var/lib/osmocom/hlr.sqlite3, and the osmo-hlr database is expected at /var/lib/osmocom/hlr.db. Hence the migration command becomes:

osmo-hlr-db-tool --database /var/lib/osmocom/hlr.db --import-nitb-db /var/lib/osmocom/hlr.sqlite3

If no --database is passed, ./hlr.db is assumed.
If the target hlr.db does not exist yet, it is created.
If no --import-nitb-db is passed, a hlr.db without any subscriber data is created.

You may repeat / combine imports to the same hlr.db; any subscribers that already exist will be skipped with an error message. It is possible to do an import while osmo-hlr is actively using the database, but that is not recommended.

Take care that the resulting hlr.db has the proper read and write permissions by the user that will run OsmoHLR. Probably, the same ownership and permissions that the previous OsmoNITB database had is the correct choice.

Note that not all information is copied to the hlr.db, just IMSI and 2G auth tokens.

To avoid future confusion, it may be desirable to remove the legacy hlr.sqlite3 from the system (i.e. backup to somewhere else), or rename it to something like osmo-nitb.db, so that it is not mistaken for the OsmoHLR database.

Configuration Files

Most of the current OsmoNITB config options still exist, but are now moved to OsmoMSC or OsmoBSC. Few are required in both.

New configuration is available to set up:
  • the GSUP connection from OsmoMSC to the OsmoHLR, and
  • the SCCP connection for the A-interface between OsmoBSC and OsmoMSC, established via OsmoSTP.

Let's take this standard OsmoNITB configuration and split it up in OsmoBSC and OsmoMSC parts:

OsmoNITB config:

e1_input
 e1_line 0 driver ipa
 ipa bind 10.42.42.2
network
 network country code 901
 mobile network code 70
 short name osmo-gsm-tester-nitb
 long name osmo-gsm-tester-nitb
 auth policy closed
 location updating reject cause 13
 encryption a5 0
 neci 1
 rrlp mode none
 mm info 1
 handover 0
 handover window rxlev averaging 10
 handover window rxqual averaging 1
 handover window rxlev neighbor averaging 10
 handover power budget interval 6
 handover power budget hysteresis 3
 handover maximum distance 9999
 bts 0
  type sysmobts
  band GSM-1800
  cell_identity 0
  location_area_code 23
  training_sequence_code 7
  base_station_id_code 63
  ms max power 33
  cell reselection hysteresis 4
  rxlev access min 0
  channel allocator ascending
  rach tx integer 9
  rach max transmission 7
  ip.access unit_id 1 0
  oml ip.access stream_id 255 line 0
  gprs mode none
  trx 0
   rf_locked 0
   arfcn 868
   nominal power 23
   max_power_red 0
   rsl e1 tei 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
   timeslot 1
    phys_chan_config SDCCH8
   timeslot 2
    phys_chan_config TCH/F
   timeslot 3
    phys_chan_config TCH/F
   timeslot 4
    phys_chan_config TCH/F
   timeslot 5
    phys_chan_config TCH/F
   timeslot 6
    phys_chan_config TCH/F
   timeslot 7
    phys_chan_config TCH/F
smpp
 local-tcp-ip 10.42.42.2 2775
 system-id test-nitb
 policy closed
ctrl
 bind 10.42.42.2

OsmoBSC config:

e1_input
 e1_line 0 driver ipa
 ipa bind 10.42.42.5
cs7 instance 1
 point-code 0.0.2
 sccp-address bsc_local
  point-code 0.0.2
  routing-indicator PC
 sccp-address msc_remote
  point-code 0.0.1
  routing-indicator PC
network
 network country code 901
 mobile network code 70
 short name osmo-gsm-tester-msc
 long name osmo-gsm-tester-msc
 auth policy closed
 location updating reject cause 13
 encryption a5 0
 authentication optional
 neci 1
 rrlp mode none
 mm info 1
 handover 0
 handover window rxlev averaging 10
 handover window rxqual averaging 1
 handover window rxlev neighbor averaging 10
 handover power budget interval 6
 handover power budget hysteresis 3
 handover maximum distance 9999
 bts 0
  type sysmobts
  band GSM-1800
  cell_identity 0
  location_area_code 23
  training_sequence_code 7
  base_station_id_code 63
  ms max power 33
  cell reselection hysteresis 4
  rxlev access min 0
  channel allocator ascending
  rach tx integer 9
  rach max transmission 7
  ip.access unit_id 1 0
  oml ip.access stream_id 255 line 0
  gprs mode none
  trx 0
   rf_locked 0
   arfcn 868
   nominal power 23
   max_power_red 0
   rsl e1 tei 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
   timeslot 1
    phys_chan_config SDCCH8
   timeslot 2
    phys_chan_config TCH/F
   timeslot 3
    phys_chan_config TCH/F
   timeslot 4
    phys_chan_config TCH/F
   timeslot 5
    phys_chan_config TCH/F
   timeslot 6
    phys_chan_config TCH/F
   timeslot 7
    phys_chan_config TCH/F
msc
 token msc_token_23_42
 core-mobile-country-code 901
 core-mobile-network-code 70
 ip.access rtp-base 8000
 timeout-ping 1800
 timeout-ping advanced
 timeout-pong 60
 codec-list hr3
 dest 151.80.237.229 5000 184
 amr-config 12_2k forbidden
 amr-config 10_2k forbidden
 amr-config 7_95k forbidden
 amr-config 7_40k forbidden
 amr-config 6_70k forbidden
 amr-config 5_90k allowed
 amr-config 5_15k forbidden
 amr-config 4_75k forbidden
 msc-addr msc_remote
 bsc-addr bsc_local

OsmoMSC config:

network
 network country code 901
 mobile network code 70
 short name osmo-gsm-tester-msc
 long name osmo-gsm-tester-msc
 auth policy closed
 location updating reject cause 13
 encryption a5 0
 authentication optional
cs7 instance 0
 point-code 0.0.1
msc
 mgcpgw remote-ip 10.42.42.3
 assign-tmsi
 cs7-instance-iu 0
 cs7-instance-a 0
ctrl
 bind 10.42.42.4
smpp
 local-tcp-ip 10.42.42.4 2775
 system-id test-msc
 policy closed
hlr
 remote-ip 10.42.42.2

Service Files

TODO