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-rw-r--r--README7
1 files changed, 6 insertions, 1 deletions
diff --git a/README b/README
index 0d2afc4..3d8e381 100644
--- a/README
+++ b/README
@@ -305,7 +305,12 @@ You might want to increase this up to "number_of_channels + 1". Note that it's
#All channels:
bash# COUNT=$(grep -c '^[^:]' PATH_TO_YOUR/channels.conf)
- bash# sysctl -w net.ipv4.igmp_max_memberships=$COUNT
+ bash# sysctl -w net.ipv4.igmp_max_memberships=$((COUNT + 1))
+
+You need to run the sysctl command *before* VDR is started. The setting is lost
+after the next reboot. Check the documentation of your Linux distro on how to
+make the setting persist (i.e. have your distro change the value for you as
+part of the boot procedure). Most likely /etc/sysctl.conf is your friend.
A multicast server never knows how many clients are actually receiving a stream.
If a client signals that it leaves a multicast group, the server has to query