Added notice that sysctl commands for max number of IGMP groups has to be

issued before starting VDR.
This commit is contained in:
Frank Schmirler 2011-10-25 12:30:05 +02:00
parent 077398fdef
commit e0e14bb322
1 changed files with 6 additions and 1 deletions

7
README
View File

@ -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