[Beowulf] Migrating from IB datagram mode to connected mode live ?

Chris Samuel samuel at unimelb.edu.au
Fri Apr 20 00:47:46 PDT 2012

On Thursday 19 April 2012 19:06:06 Håkon Bugge wrote:

> So yes, it works.

Thanks, and also thanks to Gilad from Mellanox who put me in contact 
with another person who was able to answer this and other questions.

One valuable thing I learnt was that IPoIB includes neighbor MTU 
information and so a system sending IP packets from a connected mode 
host to a datagram mode host will already know the destinations MTU.

   Christopher Samuel - Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545

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