Good morning! IMO it might be good to increase RPCSVC_MAXPAYLOAD to at least 8M, giving the NFSv4.1 session mechanism some headroom for negotiation. For over a decade the default value is 1M (1*1024*1024u), which IMO causes problems with anything faster than 2500baseT. Ced -- Cedric Blancher <cedric.blancher@xxxxxxxxx> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur