This is for for my own reference and does not constitute any recommendations.
VIO Server Changes
Verify flow_control is set to yes – This is the default setting
lsattr –El ent0 | grep flow and lsattr –El ent1 | grep flow chdev -l ent0 –a flow_control=yes chdev -l ent1 –a flow_control=yes
VIO Server “no“ parameters
no -o -p tcp_recvspace=2097152 no -o -p tcp_sendspace=2097152 chdev -l en7 -a tcp_sendspace=2097152 chdev -l en7 -a tcp_recvspace=2097152
VIO Server interface parameters SEA (ent7)
chdev -l en7 -a largesend=1 chdev -l en7 -a large_receive=1
VIO Server interface parameters SEA (en7)
chdev -l en7 -a mtu_bypass=on
VIO Server interface parameters EtherChannel (ent6)
chdev -l en6 -a chksum_offload=yes chdev -l en6 -a large_send=1 chdev -l en6 -a large_receive=1
VIO Server interface parameters EtherChannel (en6)
chdev -l en6 -a mtu_bypass=on
Changes to AIX LPAR
AIX LPAR “no“ parameters
no -o -p sb_max=2621440 no -o -p tcp_recvspace=2097152 no -o -p tcp_sendspace=2097152 chdev -l en0 -a tcp_sendspace=2097152 chdev -l en0 -a tcp_recvspace=2097152
AIX LPAR interface parameters (ent0)
chdev -l en0 -a chksum_offload=yes chdev -l en0 -a large_send=1 chdev -l en0 -a large_receive=1
AIX LPAR interface parameters (en0)
chdev -l en0 -a mtu_bypass=on