Change in osmo-sgsn[master]: manuals/gbproxy: Move pooling to separate chapter

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daniel gerrit-no-reply at lists.osmocom.org
Wed Jan 27 18:35:07 UTC 2021


daniel has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/22496 )


Change subject: manuals/gbproxy: Move pooling to separate chapter
......................................................................

manuals/gbproxy: Move pooling to separate chapter

Change-Id: Ie2ad652c8261ce56cb2ed1a6f16a81486ccdf063
Related: SYS#5115, SYS#5005
---
M doc/manuals/chapters/gbproxy-configuration.adoc
M doc/manuals/chapters/gbproxy-sgsnpool.adoc
2 files changed, 25 insertions(+), 24 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/96/22496/1

diff --git a/doc/manuals/chapters/gbproxy-configuration.adoc b/doc/manuals/chapters/gbproxy-configuration.adoc
index 20b21d6..cde3f44 100644
--- a/doc/manuals/chapters/gbproxy-configuration.adoc
+++ b/doc/manuals/chapters/gbproxy-configuration.adoc
@@ -39,27 +39,3 @@
 <1> Each SGSN is identified by its NSEI (same as in the NS configuration)
 <2> An SGSN can optionally have a name. If none is set a default name will be used.
 
-=== SGSN pool support
-
-In a SGSN pool, osmo-gbproxy is facing the problem of dividing the downlink
-capacity of a cell towards the SGSN.  The BSS advertises the per-BVC capacity
-by means of the BSSGP FLOW-CONTROL-BVC messages, but as there are multiple
-SGSN in a pool, they all have to share / divide that total capacity.
-
-By default, osmo-gbproxy advertises the full capacity to _each_ of the SGSN
-pool members, which results in significant over-provisioning and can lead to
-overload situations.
-
-The administrator can configure the _percentage_ of the overall BSS-advertised
-capacity that shall be reported to each pool member SGSN using the
-`pool bvc-flow-control-ratio <1-100>` configuration command.
-
-A setting of 100 means that each pool member is informed of 100% of the
-BSS side capacity.
-
-A setting of 25 means that each pool member is informed of 25% of the
-BSS side capacity.  This would make most sense in a set-up with four
-SGSN of equal share.
-
-More complex capacity division schemes are so far not supported by
-osmo-gbproxy.
diff --git a/doc/manuals/chapters/gbproxy-sgsnpool.adoc b/doc/manuals/chapters/gbproxy-sgsnpool.adoc
index c600bcf..61806af 100644
--- a/doc/manuals/chapters/gbproxy-sgsnpool.adoc
+++ b/doc/manuals/chapters/gbproxy-sgsnpool.adoc
@@ -192,3 +192,28 @@
 sgsn nsei 1
  allow-attach
 ----
+
+==== Traffic allocation
+
+In a SGSN pool, osmo-gbproxy is facing the problem of dividing the downlink
+capacity of a cell towards the SGSN.  The BSS advertises the per-BVC capacity
+by means of the BSSGP FLOW-CONTROL-BVC messages, but as there are multiple
+SGSN in a pool, they all have to share / divide that total capacity.
+
+By default, osmo-gbproxy advertises the full capacity to _each_ of the SGSN
+pool members, which results in significant over-provisioning and can lead to
+overload situations.
+
+The administrator can configure the _percentage_ of the overall BSS-advertised
+capacity that shall be reported to each pool member SGSN using the
+`pool bvc-flow-control-ratio <1-100>` configuration command.
+
+A setting of 100 means that each pool member is informed of 100% of the
+BSS side capacity.
+
+A setting of 25 means that each pool member is informed of 25% of the
+BSS side capacity.  This would make most sense in a set-up with four
+SGSN of equal share.
+
+More complex capacity division schemes are so far not supported by
+osmo-gbproxy.

-- 
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-Change-Id: Ie2ad652c8261ce56cb2ed1a6f16a81486ccdf063
Gerrit-Change-Number: 22496
Gerrit-PatchSet: 1
Gerrit-Owner: daniel <dwillmann at sysmocom.de>
Gerrit-MessageType: newchange
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