Cellular Network Infrastructure » Core Network (CN) » OsmoMSC

It seems that this entails completing the port of the 3G branch to the new sigtran using M3UA.

Symptoms: I'm seeing calls to osmo_sua_user_link_down() which (IIUC) should be replaced osmo_sccp_user_sap_down(), and ue_conn_ctx_alloc() takes a struct osmo_sccp_link* argument, which apparently should now use struct osmo_sccp_user instead. (not entirely sure about the details, but fairly sure that iu needs more work for M3UA sigtran)

First tests and some libosmo-sccp patches show that we can run IuCS and AoIP at the same time; so far on the neels/aoip branch(es).

See Lab Update: OsmoMSC Serves 2G + 3G for the First Time

The code review part is still pending, and taking the state into aoip branch, and osmo-iuh + libosmo-sccp master.

necessary changes are part of the openbsc.git:aoip branch. Pending: submit osmo-iuh changes.

https://gerrit.osmocom.org/3187 submitted to osmo-iuh, review received, pending fixes

neels wrote:

Symptoms: I'm seeing calls to osmo_sua_user_link_down() which (IIUC) should be replaced osmo_sccp_user_sap_down(), and ue_conn_ctx_alloc() takes a struct osmo_sccp_link* argument, which apparently should now use struct osmo_sccp_user instead. (not entirely sure about the details, but fairly sure that iu needs more work for M3UA sigtran)

These items have been resolved on the openbsc.git aoip branch (and hence also the new osmo-msc.git). A and Iu happily run alongside each other. All iu / ue related items have been removed from the aoip code.

The osmo-iuh.git changes are still pending in gerrit (and waiting for sccp address config code to complete in osmo-bsc), but this is actually not related to this issue.