Change in ...osmo-mgw[master]: vty: update desc of conn-timeout

[osmith]

osmith has submitted this change and it was merged. ( https://gerrit.osmocom.org/c/osmo-mgw/+/14602 )

Change subject: vty: update desc of conn-timeout
......................................................................

vty: update desc of conn-timeout

It can be used together with LCLS, just make sure to also enable
keep-alive packets.

In OS#3429 it was pointed out, that during LCLS the media path remains
active but is not used. Without any traffic flowing, this looks like a
timed out connection and so it will be killed if conn-timeout is set.

However, OsmoBSC and OsmoMSC have an option to enable RTP keep-alive
packets (through libosmo-mgcp, originally intended to keep connections
behind NAT open). If that option is enabled, the keep-alive packets
should also prevent the conn-timeout.

Related: OS#3783
Change-Id: Ib4d19104d558a26a444a80fb36f4b7b33bc5cc59
---
M src/libosmo-mgcp/mgcp_vty.c
1 file changed, 2 insertions(+), 1 deletion(-)

Approvals:
  Jenkins Builder: Verified
  laforge: Looks good to me, but someone else must approve
  osmith: Looks good to me, approved



diff --git a/src/libosmo-mgcp/mgcp_vty.c b/src/libosmo-mgcp/mgcp_vty.c
index a479b95..5f9853b 100644
--- a/src/libosmo-mgcp/mgcp_vty.c
+++ b/src/libosmo-mgcp/mgcp_vty.c
@@ -1382,7 +1382,8 @@
       "conn-timeout <0-65534>",
       "Set a time after which inactive connections (CIs) are closed. Set to 0 to disable timeout. This can be used to"
       " work around interoperability problems causing connections to stay open forever, and slowly exhausting all"
-      " available ports. Do not enable when LCLS is used (connections in LCLS state appear to be inactive)!\n"
+      " available ports. Enable keep-alive packets in MGW clients when using this option together with LCLS (OsmoBSC,"
+      " OsmoMSC: 'rtp keep-alive')!\n"
       "Timeout value (sec.)\n")
 {
 	g_cfg->conn_timeout = strtoul(argv[0], NULL, 10);

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Gerrit-Project: osmo-mgw
Gerrit-Branch: master
Gerrit-Change-Id: Ib4d19104d558a26a444a80fb36f4b7b33bc5cc59
Gerrit-Change-Number: 14602
Gerrit-PatchSet: 3
Gerrit-Owner: osmith <osmith at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at gnumonks.org>
Gerrit-Reviewer: osmith <osmith at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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