Change in osmo-bsc[master]: Introduce VTY option to forbid use of TCH for non-voicecall signalling
gerrit-no-reply at lists.osmocom.org
Thu Jul 22 17:31:45 UTC 2021
Hello osmith, Jenkins Builder, neels,
I'd like you to reexamine a change. Please visit
to look at the new patch set (#3).
Change subject: Introduce VTY option to forbid use of TCH for non-voicecall signalling
Introduce VTY option to forbid use of TCH for non-voicecall signalling
Usual allocation mechansim, when some signalling channel is needed,
first tries to reserve an SDCCH, and if all of them are exhausted, then
attempts to reserve a TCH as a last resort.
This, however, may cause TCH starvation under certain situations, for
instance if there high load on other services (LU, SMS, etc.).
Hence, it may be desirable for the operator to forbid reservation
of TCH slots once SDCCH become exhausted. This commit is thus adding a
VTY command which allows forbidding it. The default behavior (allow using
TCH timeslots when SDCCHs are exhausted) is kept as before.
The above mentioned prohibition is applied only to non-voicecall related
signalling services. That's because voicecall services will end up
requiring a TCH anyway, and forbiding reservation of TCH straighaway
when SDCCHs are exhausted would mean no voice calls could be initiated
while still TCHs would be available.
6 files changed, 67 insertions(+), 14 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/06/25006/3
To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/25006
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Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: osmith <osmith at sysmocom.de>
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