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| author | Neels Hofmeyr <neels@hofmeyr.de> | 2020-10-29 23:50:43 +0100 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2020-11-24 18:13:27 +0100 |
| commit | 66cb6e941d9f801b9f107a39b3112b30e93486cd (patch) | |
| tree | 4bb0c31f1fca0e5936a14f2387a4d214052c8e32 | |
| parent | 29718f96a4dcb44d255d5d6fe67695245f884c2b (diff) | |
common SCCP: add example for two cs7 instances (for A and Lb)neels/lcs
Change-Id: I9a74fdc31cffb1b114e48a3b82eb9f434cb5f7cc
| -rw-r--r-- | common/chapters/cs7-config.adoc | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/common/chapters/cs7-config.adoc b/common/chapters/cs7-config.adoc index 394da82..648e289 100644 --- a/common/chapters/cs7-config.adoc +++ b/common/chapters/cs7-config.adoc @@ -319,3 +319,85 @@ routing-key RCONTEXT DPC si (aal2|bicc|b-isup|h248|isup|sat-isup|sccp|tup) routing-key RCONTEXT DPC ssn SSN routing-key RCONTEXT DPC si (aal2|bicc|b-isup|h248|isup|sat-isup|sccp|tup) ssn SSN ---- + +[[sccp-multiple-cs7]] +=== Multiple cs7 Instances + +It is possible to connect to several STPs from an Osmocom CNI program. Which +`cs7 instance` to use is usually indicated by choosing an SCCP address +configured at the desired instance. + +For example, an OsmoBSC can run A- and Lb-interface via distinct STP +connections, by configuring two separate `cs7 instance` sections with different +STP addresses. Which instance to use is chosen by assigning an SCCP address from +the desired instance: + +---- +cs7 instance 0 + asp my-asp 2905 0 m3ua + remote-ip 10.23.24.1 + +cs7 instance 1 + # default remote-ip for STP is 127.0.0.1 + sccp-address smlc-on-local-stp + point-code 0.23.6 + +msc 0 + +smlc + smlc-addr smlc-on-local-stp + enable +---- + +The above example points `cs7 instance 0` to a remote STP for the A-interface. +`msc 0` has no explicit `msc-addr` set, so it uses the first `cs7 instance 0` +and its default point-code for the A-interface. + +The second `cs7 instance 1` points at a locally running STP at 127.0.0.1. `cs7 +instance 1` contains an addressbook entry named `smlc-on-local-stp`. By +assigning this address to the `smlc-addr`, the Lb interface will run on `cs7 +instance 1` via the local STP. + +The remaining AS, ASP and point-codes are automatically configured. A fully +written out version of above example is: + +---- +cs7 instance 0 + # the default point-code for a BSC is 0.23.3 + point-code 0.23.3 + asp my-asp 2905 0 m3ua + remote-ip 10.23.24.1 + sctp-role client + as as-clnt-A-0-m3ua m3ua + asp my-asp + # the default point-code for an MSC is 0.23.1 + sccp-address msc0 + point-code 0.23.1 + sccp-address bsc-on-A + point-code 0.23.3 + +cs7 instance 1 + point-code 0.23.3 + asp asp-clnt-Lb-1-m3ua 2905 0 m3ua + remote-ip localhost + sctp-role client + as as-clnt-Lb-1-m3ua m3ua + asp asp-clnt-Lb-1-m3ua + sccp-address smlc-on-local-stp + point-code 0.23.6 + sccp-address bsc-on-Lb + point-code 0.23.3 + +msc 0 + msc-addr msc0 + # when bsc-addr is omitted, the chosen cs7 instance's point-code is used + bsc-addr bsc-on-A + +smlc + # when smlc-addr is omitted, cs7 instace 0 would be used with the SMLC's + # default point-code + smlc-addr smlc-on-local-stp + # when bsc-addr is omitted, the chosen cs7 instance's point-code is used + bsc-addr bsc-on-Lb + enable +---- |