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Bug #3355

closed

OsmoMSC doesn't provide unique IDTAG_SERNR in IPA CCM

Added by laforge over 4 years ago. Updated almost 4 years ago.

Status:
Resolved
Priority:
High
Assignee:
Category:
-
Target version:
-
Start date:
06/23/2018
Due date:
% Done:

0%

Resolution:
Spec Reference:

Description

OsmoMSC currently identifies itself simply as "MSC" over the IPA/GSUP link to OsmoHLR.

This is wrong as it results in all OsmoMSCs (in a multi-MSC network) to register using the same identity, which in turn will render the HLR unable to store which MSC is actually serving the subscriber, and/or to route mesages accordingly.

It appears the change to "MSC" was made in Change-Id: I0a60681ab4a4d73e26fe8f0637447db4b6fe6eb2 from "SGSN-00-00-00-00-00-00" before. Both the old and the new name are wrong though, as they're not unique.

The correct behavior AFAICT is "MSC-" prefix with whatever unque identifier behind. We could make that suffix configurable in the VTY, if there's no other way to derive any other locally unique identifier. MAC adresses work fine for BTSs, but not for MSCs: There might be any number of OsmoMSCs running on the same physical / virtual machine with only one MAC address...


Related issues

Related to OsmoHLR - Bug #2796: OsmoHLR doesn't update VLR during UpdateLocationResolvedneels12/30/2017

Actions
Related to OsmoSGSN - Bug #3356: OsmoSGSN doesn't provide unique IDTAG_SERNR in IPA CCMIn Progressosmith06/23/2018

Actions
Related to OsmoHLR - Feature #3644: allow arbitrary bytes in Global Title (GT), a.k.a. the VLR,SGSN's identification towards the HLRNewneels10/11/2018

Actions
Related to OsmoHLR - Bug #3710: hlr_ussd.c hardcodes "MSC-00-00-00-00-00-00" twiceResolvedosmith11/26/2018

Actions
Blocks OsmoMSC - Feature #3618: Inter-MSC hand-over supportResolvedneels10/02/2018

Actions
Blocks OsmoMSC - Feature #1609: Inter-BSC hand-over is missing (MSC side)Resolvedneels11/21/201611/21/2016

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