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Hello,

Personally, I would set filters in tc (packet priorization/shaper part of the 
network stack)
to prioritize Cluster packets. That way, delivery of the packets is basicly 
guaranteed. I'd do something similiar
on the switch to make sure it prioritizes the packets, too.

The migration traffic must always have a lower priority than the traffic if 
cman and the other components,
so the totems get delivered in any case.
The default queuing behaviour is FIFO. This is obviously not desireable here.
If the preset queuing mechanism supports traffic priorization, you can possible 
get away with
a single set of iptables DSCP/TOS rules in *mangle OUTPUT to set the correct 
value
so the queue prioritizes it.
- -- 

Mit freundlichen Grüßen/Kind Regards,
Noel Kuntze

GPG Key ID: 0x63EC6658
Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658

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