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[PTMUd] by using a safe PMTU to init a link, we can shave down corosync…

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[PTMUd] by using a safe PMTU to init a link, we can shave down corosync membership creation by 25%

tested on a 9 node cluster with 2 links each node, going down from 4 seconds to 3 seconds

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>

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fabbioneAuthored on Dec 29 2017, 3:53 AM
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rK6cd9f82f33b0: [PMTUd] Use kernel MTU information to determine next packet size during…
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